:Daria Kasatkina

Daria was born in Tolyatti, Samara Oblast to Tatyana Borisovna (née Timkovskaya) and Sergey Igorevich Kasatkin. Tolyatti is an industrial city located about 1000 km southeast of Moscow. Her father works as an engineer at the Volga Automotive Plant and her mother was a lawyer.{{cite web|url=http://news.sportbox.ru/Vidy_sporta/Tennis/WTA/spbnews_NI460041_Pokolenie-Next-Dariya-Kasatkina|title=Поколение Next: Дарья Касаткина|trans-title=Generation Next: Daria Kasatkina|publisher=SportBox.ru|date=8 June 2014|access-date=17 April 2016|language=ru|archive-date=24 September 2016|archive-url=https://web.archive.org/web/20160924181528/http://news.sportbox.ru/Vidy_sporta/Tennis/WTA/spbnews_NI460041_Pokolenie-Next-Dariya-Kasatkina|url-status=live}}{{cite web|url=http://www.sportobzor.ru/zvezda-sporta/darya-kasatkina-voshodyaschaya-zvezda-bolshogo-tennisa.html|title=Теннисистка Дарья Касаткина: биография и спортивные достижения|trans-title=Tennis player Daria Kasatkina: Biography and sports achievements|publisher=SportObzor.ru|date=16 September 2015|access-date=17 April 2016|language=ru|archive-date=5 May 2016|archive-url=https://web.archive.org/web/20160505100602/http://www.sportobzor.ru/zvezda-sporta/darya-kasatkina-voshodyaschaya-zvezda-bolshogo-tennisa.html|url-status=live}}{{cite web|title=Who is Daria Kasatkina, the rising star of Russian tennis?|url=https://www.rbth.com/lifestyle/329158-daria-kasatkina-tennis|website=Russia Beyond|date=19 September 2018 |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225031200/https://www.rbth.com/lifestyle/329158-daria-kasatkina-tennis |url-status=live}} Both of her parents were nationally ranked athletes in Russia (officially known as Candidates for Master of Sports); her mother in athletics, and her father in ice hockey.{{cite web|url=http://news.sportbox.ru/Vidy_sporta/Tennis/spbnews_NI584688_Darja_Kasatkina_Trista_strochek_rejtinga_za_odin_god|title=Дарья Касаткина: Триста строчек рейтинга за один год!|trans-title=Daria Kasatkina: Three hundred rating positions within a year!|publisher=SportBox.ru|author=Anton Baboshin|date=19 January 2016|access-date=17 April 2016|language=ru|archive-date=23 January 2016|archive-url=https://web.archive.org/web/20160123183723/http://news.sportbox.ru/Vidy_sporta/Tennis/spbnews_NI584688_Darja_Kasatkina_Trista_strochek_rejtinga_za_odin_god|url-status=live}} Kasatkina also has an older brother named Alexandr. Her brother had played tennis casually, and convinced her parents to have her also begin playing the sport when she was six years old. She initially played two to three times a week for two years. In time she began competing in higher level tournaments.{{cite web|title=Daria Kasatkina Q&A: On Big Goals, Preferring Men's Tennis To Women's And Nadal|url=http://www.tennis.com/pro-game/2016/03/daria-kasatkina-q-big-goals-preferring-mens-tennis-womens-and-nadal/57914/|website=Tennis.com|last1=Tandon|first1=Kamakshi |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225030856/http://www.tennis.com/pro-game/2016/03/daria-kasatkina-q-big-goals-preferring-mens-tennis-womens-and-nadal/57914/ |url-status=live}}

File:Darya Kasatkina at the 2013 US Open.jpg]]

As a junior, Kasatkina was ranked as high as {{abbr|No.|world number}} 3 in the world.{{cite web|title=Daria Kasatkina|url=https://www.itftennis.com/juniors/players/player/profile.aspx?playerid=100168617|website=ITF Tennis |access-date=23 December 2018 |archive-date=27 March 2019 |archive-url=https://web.archive.org/web/20190327091816/https://www.itftennis.com/juniors/players/player/profile.aspx?playerid=100168617 |url-status=live}} She began competing on the ITF Junior Circuit shortly after turning 14 years old and won her first title at just her second career event, the low-level Grade 4 Samara Cup. In early 2012 while still 14, Kasatkina won two higher-level Grade 2 tournaments in Moldova and France, the former of which was the first Grade 2 event she entered. Towards the end of the year, she helped Russia reach the final of the Junior Fed Cup alongside Elizaveta Kulichkova and Alina Silich, where they finished runners-up to the United States.{{cite web|title=US Girls Win Junior Fed Cup Title in Dominating Fashion; Loeb, Nguyen Take Pro Circuit Titles|url=http://tenniskalamazoo.blogspot.com/2012/09/us-girls-win-junior-fed-cup-title-in.html|website=ZooTennis.com |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073741/http://tenniskalamazoo.blogspot.com/2012/09/us-girls-win-junior-fed-cup-title-in.html |url-status=live}}

Kasatkina began excelling at the highest level junior tournaments in 2013. She reached her first Grade-1 final in doubles in January, which she followed up with her first Grade-1 final in singles in April. After failing to win a match at her only two Grade A events the previous year, Kasatkina finished runner-up to Belinda Bencic at the Trofeo Bonfiglio in May.{{cite web|title=New champions to be crowned in Milan|url=https://www.itftennis.com/news/148341.aspx|website=ITF Tennis |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024249/https://www.itftennis.com/news/148341.aspx |url-status=live}}{{cite web|title=Bencic and Zverev crowned champions in Milan|url=https://www.itftennis.com/juniors/news/articles/bencic-and-zverev-crowned-champions-in-milan.aspx|website=ITF Tennis |access-date=23 December 2018 |archive-date=23 November 2018 |archive-url=https://web.archive.org/web/20181123022915/https://www.itftennis.com/juniors/news/articles/bencic-and-zverev-crowned-champions-in-milan.aspx |url-status=live}} She then won her first junior Grand Slam matches the following month, reaching the quarterfinals at the French Open.{{cite web|title=Chirico Faces Bencic in French Open Junior Semifinals, Lottner and Konjuh Save Match Points to Advance; Vanderbilt, Mississippi State and Mississippi Popular in Men's ITA Kick-off Weekend Draft|url=http://tenniskalamazoo.blogspot.com/2013/06/chirico-faces-bencic-in-french-open.html|website=ZooTennis.com |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024236/http://tenniskalamazoo.blogspot.com/2013/06/chirico-faces-bencic-in-french-open.html |url-status=live}} Following this event, she did not play another tournament until late August, when she won her first Grade-1 title at the International Hard Court Championship in the United States.{{cite web|title=Kasatkina, Nishioka Win ITF Grade 1 International Hard Courts; Santamaria and Christian Shut Out of US Open Women's Doubles Draw; Schnack, Roberson Win USO Mixed Wild Card|url=http://tenniskalamazoo.blogspot.com/2013/08/kasatkina-nishioka-win-itf-grade-1.html|website=ZooTennis.com |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024357/http://tenniskalamazoo.blogspot.com/2013/08/kasatkina-nishioka-win-itf-grade-1.html |url-status=live}} Kasatkina's last event of the year was the Junior Fed Cup, where she played the No. 1 singles matches. With Veronika Kudermetova and Aleksandra Pospelova, the top-seeded Russian team won the tournament, defeating Australia in the final.{{cite web|title=Black Claims First Pro Title, Giron Wins Second Futures; Spain, Russia Take Junior Davis Cup and Junior Fed Cup Championships; Freshmen Shine at Riviera All-American|url=http://tenniskalamazoo.blogspot.com/2013/09/black-claims-first-pro-title-giron-wins.html|website=ZooTennis.com |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024257/http://tenniskalamazoo.blogspot.com/2013/09/black-claims-first-pro-title-giron-wins.html |url-status=live}}{{cite web|url=http://www.itftennis.com/juniors/news/articles/russia-crowned-junior-fed-cup-champion.aspx|title=Russia crowned Junior Fed Cup champion|website=ITF Tennis|date=29 September 2013|access-date=2 October 2016|archive-date=19 April 2017|archive-url=https://web.archive.org/web/20170419041648/http://www.itftennis.com/juniors/news/articles/russia-crowned-junior-fed-cup-champion.aspx|url-status=live}}

Kasatkina had her best year on the junior tour in 2014, despite competing in just five tournaments. She reached both the singles and doubles finals at the Grade 1 Trofeo Mauro Sabatini, and won the title in singles. At the last ITF tournament of her career, Kasatkina won her first and only junior Grand Slam title in the girls' singles event at the French Open. As the No. 8 seed, she defeated top seed Ivana Jorović in the final, coming back from a set down. She was the first Russian girl to win the event since Nadia Petrova in 1998 and helped Russia sweep both junior singles events, with fellow European 16s champion Andrey Rublev winning the boys' singles title.{{cite web|title=Russians Sweep French Junior Singles Championships; Donaldson, Scholtz, Cunha Win Futures Titles|url=http://tenniskalamazoo.blogspot.com/2014/06/russians-sweep-french-junior-singles.html|website=ZooTennis.com |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024004/http://tenniskalamazoo.blogspot.com/2014/06/russians-sweep-french-junior-singles.html |url-status=live}} In August, Kasatkina also participated in the Youth Olympic Games in Nanjing. She earned a silver medal in doubles alongside compatriot Anastasiya Komardina. They finished runners-up to Ukrainian Anhelina Kalinina and Belarusian Iryna Shymanovich.{{cite web|title=Tennis at the Youth Olympic Games|url=https://www.itftennis.com/juniors/tournaments/youth-olympic-games/tennis-at-the-youth-olympic-games.aspx|website=ITF Tennis |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024132/https://www.itftennis.com/juniors/tournaments/youth-olympic-games/tennis-at-the-youth-olympic-games.aspx |url-status=live}}{{cite web|title=Highlights from Day 7 at the Nanjing 2014 Youth Olympic Games in the Women's Tennis Doubles final match|url=https://www.olympic.org/videos/women-s-tennis-doubles-final-highlights-day-7|website=Olympics |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024415/https://www.olympic.org/videos/women-s-tennis-doubles-final-highlights-day-7 |url-status=live}}

Kasatkina began her professional career as a wildcard qualifying entrant at the 2013 Kremlin Cup, where she lost her only match. She made her professional main-draw debut on the ITF Circuit in November, and then won her first career title at a low-level $10k event in Sharm El Sheikh, Egypt a few months later. She also won a $25k title in Telavi, Georgia the following September.{{cite web|title=Daria Kasatkina|url=https://www.itftennis.com/procircuit/players/player/profile.aspx?playerid=100168617|website=ITF Tennis |access-date=23 December 2018 |archive-date=11 July 2018 |archive-url=https://web.archive.org/web/20180711153519/https://www.itftennis.com/procircuit/players/player/profile.aspx?playerid=100168617 |url-status=live}} Kasatkina again received a wildcard into the 2014 Kremlin Cup, this time for the main draw. She lost her WTA Tour debut to Alison Riske.{{cite web|title=Safarova Aces Opener In Moscow|url=https://www.wtatennis.com/news/safarova-aces-opener-moscow|website=WTA Tennis |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074005/https://www.wtatennis.com/news/safarova-aces-opener-moscow |url-status=live}}

Kasatkina began 2015 ranked No. 354, but steadily climbed to No. 161 at the end of June on the strength of four $25k titles.{{cite web|title=Daria Kasatkina Rankings History|url=https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#ranking|website=WTA Tennis |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073737/https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#ranking |url-status=live}} She then recorded her first WTA Tour match-win in July, against Aleksandra Krunić at the Gastein Ladies, en route to the quarterfinals.{{cite web|title=Russia's Kasatkina Reaches First WTA Quarterfinal in Bad Gastein|url=http://www.tennisnow.com/News/2015/July/-Russia-s-Kasatkina-Reaches-First-WTA-Quarterfinal.aspx|website=Tennis Now |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073916/http://www.tennisnow.com/News/2015/July/-Russia-s-Kasatkina-Reaches-First-WTA-Quarterfinal.aspx |url-status=live}} With her rankings improvement, Kasatkina was able to enter qualifying at a major event for the first time at the US Open. Although she lost in the last round, she reached the main draw as a lucky loser and made it to the third round, upsetting compatriot and world No. 38, Daria Gavrilova, as well as No. 79, Ana Konjuh.{{cite web|url=http://www.wtatennis.com/news/article/4977430/title/kasatkina-embracing-lucky-loser-role|title=Kasatkina Embracing Lucky Loser Role|date=3 September 2015|website=WTA Tennis|access-date=8 March 2018|archive-date=2 June 2016|archive-url=https://web.archive.org/web/20160602052317/http://www.wtatennis.com/news/article/4977430/title/kasatkina-embracing-lucky-loser-role|url-status=live}} Before the end of the year, Kasatkina won her biggest titles to date in both singles and doubles. In September, she won the Open de Saint-Malo $50k singles event.{{cite web|title=Darya Kasatkina éblouissante|url=https://www.letelegramme.fr/tennis/darya-kasatkina-eblouissante-21-09-2015-10782269.php|website=Le Telegramme|date=21 September 2015 |access-date=23 December 2018|language=fr |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074103/https://www.letelegramme.fr/tennis/darya-kasatkina-eblouissante-21-09-2015-10782269.php |url-status=live}} In October, she won the doubles event at the Kremlin Cup with Elena Vesnina for her first WTA title.{{cite web|title=Russians Vesnina and Kasatkina win Kremlin Cup in women doubles|url=http://tass.com/sport/831517|website=Tass |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074210/http://tass.com/sport/831517 |url-status=live}} She also reached semifinals in singles as a qualifier, her best singles result on the WTA Tour at the time. In the event, she defeated world No. 14, Carla Suárez Navarro, in the quarterfinals for the biggest win of her career.{{cite web|title=Welcome to the WTA Finals: world's elite face off after chaos of qualifying|url=https://www.theguardian.com/sport/2015/oct/24/wta-finals-tennis-chaos-qualifying|website=The Guardian|date=24 October 2015 |access-date=23 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224024141/https://www.theguardian.com/sport/2015/oct/24/wta-finals-tennis-chaos-qualifying |url-status=live}} She finished the year ranked No. 72.

File:Kasatkina WM16 (27) (28418972275).jpg

During the 2016 season, Kasatkina continued to rise in the WTA rankings, reaching No. 32 in the world while still 18 years old and as high as No. 24 later in the year. She began the year at the Auckland Open, where she recorded her first career top ten victory against world No. 7, Venus Williams.{{cite web|title=Daria Kasatkina in shock defeating her childhood hero Venus Williams|url=https://www.tvnz.co.nz/one-news/sport/tennis/daria-kasatkina-in-shock-defeating-her-childhood-hero-venus-williams?variant=tb_v_1|website=TV New Zealand |access-date=24 December 2018 |archive-date=27 March 2019 |archive-url=https://web.archive.org/web/20190327092805/https://www.tvnz.co.nz/one-news/sport/tennis/daria-kasatkina-in-shock-defeating-her-childhood-hero-venus-williams?variant=tb_v_1 |url-status=live}} Kasatkina then made her Australian Open debut and reached the third round. She defeated No. 27, Anna Karolína Schmiedlová, in the first round before losing to world No. 1, Serena Williams.{{cite web|title=Serena Williams takes Darya Kasatkina to pieces in 44 minutes|url=https://www.eurosport.com/tennis/australian-open/2016/serena-williams-v-darya-kasatkina-live_sto5074864/story.shtml|website=EuroSport|date=22 January 2016 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074011/https://www.eurosport.com/tennis/australian-open/2016/serena-williams-v-darya-kasatkina-live_sto5074864/story.shtml |url-status=live}} For her next tournament, she returned to Russia for the St. Petersburg Trophy and reached the semifinals, losing to Belinda Bencic.{{cite web|title=Bencic reaches St. Petersburg final, secures spot in Top 10|url=http://www.tennis.com/pro-game/2016/02/bencic-to-play-vinci-in-st-petersburg-final/57610/|website=Tennis.com |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074218/http://www.tennis.com/pro-game/2016/02/bencic-to-play-vinci-in-st-petersburg-final/57610/ |url-status=live}} At the Indian Wells Open, Kasatkina then made it to the quarterfinals at her first Premier Mandatory event.{{cite web|title=Pliskova Ends Kasatkina's Run|url=https://www.wtatennis.com/news/pliskova-ends-kasatkinas-run|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220106/https://www.wtatennis.com/news/pliskova-ends-kasatkinas-run |url-status=live}} She also produced one good result in doubles, a semifinals appearance at the Qatar Ladies Open with Elena Vesnina. The Russian duo notably defeated Martina Hingis and Sania Mirza to end their 41-match-win streak, the longest streak on the WTA Tour since 1990.{{cite web|url=http://www.wtatennis.com/news/article/5374490/title/santina-streak-ends-at-41|title=Santina Streak Ends At 41|date=25 February 2016|website=WTA Tennis|access-date=8 March 2018|archive-date=28 February 2016|archive-url=https://web.archive.org/web/20160228031151/http://www.wtatennis.com/news/article/5374490/title/santina-streak-ends-at-41|url-status=live}}

In the middle of the season, Kasatkina again reached the third round at two more major events, the French Open and Wimbledon. At both tournaments, she lost tight matches that each ended 10–8 in the third set, the former against Kiki Bertens and the latter against No. 8, Venus Williams.{{cite web|title=Why the French Open meant so much to Kiki Bertens|url=http://www.espn.co.uk/tennis/story/_/id/15977594/french-open-why-french-open-meant-much-kiki-bertens|website=ESPN|date=5 June 2016 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224121901/http://www.espn.co.uk/tennis/story/_/id/15977594/french-open-why-french-open-meant-much-kiki-bertens |url-status=live}}{{cite web|url=http://www.wtatennis.com/news/article/5696922/title/venus-holds-nerve-to-defeat-kasatkina|title=Venus holds nerve to defeat Kasatkina|website=WTA Tennis|access-date=8 March 2018|archive-date=14 January 2017|archive-url=https://web.archive.org/web/20170114120340/http://www.wtatennis.com/news/article/5696922/title/venus-holds-nerve-to-defeat-kasatkina}} She had two chances to serve out the match against Bertens.{{cite web|title=Kiki Bertens vs. Daria Kasatkina|url=https://www.flashscore.com/match/I1AiAq5N/#point-by-point;3|website=FlashScore.com |access-date=24 December 2018}} Kasatkina continued her success at big tournaments at the Premier 5 Canadian Open, where she reached the quarterfinals. She defeated world No. 8, Roberta Vinci, in the third round for her second career top ten victory.{{cite web|title=WTA Rogers Cup: Daria Kasatkina edges out Roberta Vinci in two tight sets|url=https://www.vavel.com/en-us/tennis-usa/2016/07/28/674816-wta-rogers-cup-daria-kasatkina-edges-out-roberta-vinci-in-two-tight-sets.html|website=Vavel |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073923/https://www.vavel.com/en-us/tennis-usa/2016/07/28/674816-wta-rogers-cup-daria-kasatkina-edges-out-roberta-vinci-in-two-tight-sets.html |url-status=live}}{{cite web|title=Daria Kasatkina – July 28, 2016|url=http://www.rogerscup.com/interview/daria-kasatkina-july-28-2016/|website=Rogers Cup |access-date=24 December 2018 |archive-date=25 June 2019 |archive-url=https://web.archive.org/web/20190625040942/http://www.rogerscup.com/interview/daria-kasatkina-july-28-2016/ |url-status=live}} Her next tournament was at the Rio Olympics. She qualified for the singles draw through her ranking, and also entered the doubles tournament with Svetlana Kuznetsova, after Margarita Gasparyan withdrew due to injury.{{cite web|title=ITF announces entries for Rio 2016 Olympics|url=http://www.itftennis.com/news/232270.aspx|website=ITF Tennis |access-date=24 December 2018|archive-date=3 July 2016 |archive-url=https://web.archive.org/web/20160703075219/http://www.itftennis.com/news/232270.aspx}} Kasatkina reached the quarterfinals at both events, falling just short of the medal rounds. She lost to American Madison Keys in singles and the Czech team of Andrea Hlaváčková and Lucie Hradecká in doubles.{{cite web|title=Illinois' Madison Keys Advances to Singles Semifinals|url=https://www.nbcchicago.com/news/local/Illinois-Madison-Keys-Looks-to-Advance-in-Singles-Quarterfinals-389758851.html|website=NBC Chicago |date=10 August 2016 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224121922/https://www.nbcchicago.com/news/local/Illinois-Madison-Keys-Looks-to-Advance-in-Singles-Quarterfinals-389758851.html |url-status=live}} At the US Open, her streak of four consecutive third-round appearances at majors was ended in the opening round by Wang Qiang.{{cite web|title=US Open first round preview: Daria Kasatkina vs Wang Qiang|url=https://www.vavel.com/en-us/tennis-usa/2017/08/26/821140-us-open-first-round-preview-daria-kasatkina-vs-wang-qiang.html|website=Vavel |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073935/https://www.vavel.com/en-us/tennis-usa/2017/08/26/821140-us-open-first-round-preview-daria-kasatkina-vs-wang-qiang.html |url-status=live}}

Kasatkina's last big singles result of the season came at the Premier 5 Wuhan Open, where she made it to the third round. She had needed to qualify for the main draw after forgetting to sign up for the tournament.{{cite web|title=Kasatkina on challenges during first full year on tour|url=https://sport360.com/article/tennis/international-tennis/194672/interview-russian-teen-daria-kasatkina-discusses-challenges-faced-during-first-full-year-on-tour|website=Sport360 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073927/https://sport360.com/article/tennis/international-tennis/194672/interview-russian-teen-daria-kasatkina-discusses-challenges-faced-during-first-full-year-on-tour |url-status=live}} For the second consecutive year, Kasatkina reached the doubles final at the Kremlin Cup, this time with Daria Gavrilova. The pair finished runners-up to Hlaváčková and Hradecká.{{cite web|title=Svetlana Kuznetsova Defending Title in Singles|url=https://kremlincup.ru/en/about/2016/|website=Kremlin Cup |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224074143/https://kremlincup.ru/en/about/2016/ |url-status=live}} Kasatkina ended the season at world No. 27.

File:Kasatkina WM17 (8) (36050847561).jpg]]

Kasatkina maintained a steady ranking throughout 2017, falling no lower than No. 42 in the world and again reaching the same season-best of No. 24 as 2016. Nonetheless, she had a slow start to the season, not winning a single match at the Australian Open or the two Premier Mandatory events in the United States, the three biggest tournaments through March. Her best results were two quarterfinals at mid-level two Premier tournaments, the Sydney International and the Qatar Ladies Open.{{cite web|title=Daria Kasatkina Match History|url=https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#matches|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073737/https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#matches |url-status=live}} In Sydney, she also defeated Angelique Kerber for her first career victory over a current world No. 1 player.{{cite web|title=Kasatkina Conquers Kerber For Career Win In Sydney|url=https://www.wtatennis.com/content/kasatkina-conquers-kerber-career-win-sydney-0|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220530/https://www.wtatennis.com/content/kasatkina-conquers-kerber-career-win-sydney-0 |url-status=live}}

After struggling on hardcourts, Kasatkina had better clay-court results on the strength of her first and last tournaments on the surface. At the Charleston Open, she won her first career singles title shortly before turning 20 years old. She defeated fellow teenager Jeļena Ostapenko in the final, in straight sets.{{cite web|url=http://www.wtatennis.com/news/article/6473542/title/kasatkina-crowned-queen-of-charleston-teen-takes-first-title-over-ostapenko|title=Kasatkina Crowned Queen Of Charleston, Teen Takes First Title Over Ostapenko|website=WTA Tennis|date=9 April 2017 | access-date=10 April 2017 | archive-date=10 April 2017 | archive-url=https://web.archive.org/web/20170410050714/http://www.wtatennis.com/news/article/6473542/title/kasatkina-crowned-queen-of-charleston-teen-takes-first-title-over-ostapenko | url-status=live}} Kasatkina closed out the clay-court season with another third-round appearance at the French Open, where she lost to eventual finalist and world No. 4, Simona Halep.{{cite web|title=Halep holds off Kasatkina to reach Roland Garros fourth round|url=https://www.wtatennis.com/news/halep-holds-kasatkina-reach-roland-garros-fourth-round|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220156/https://www.wtatennis.com/news/halep-holds-kasatkina-reach-roland-garros-fourth-round |url-status=live}} Her only grass-court tournament was Wimbledon, where she made it to the second round.{{cite web|title=Järelvaadatav: võimsas hoos Kontaveit jõudis Wimbledonis ülikindlalt kolmandasse ringi|url=https://sport.postimees.ee/4169161/jarelvaadatav-voimsas-hoos-kontaveit-joudis-wimbledonis-ulikindlalt-kolmandasse-ringi|website=Postimees Sport|date=5 July 2017 |access-date=24 December 2018|language=et |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224121930/https://sport.postimees.ee/4169161/jarelvaadatav-voimsas-hoos-kontaveit-joudis-wimbledonis-ulikindlalt-kolmandasse-ringi |url-status=live}}

Towards the end of the year, Kasatkina had more success on hardcourts. At the US Open, she made it to the fourth round of a major event for the first time. Aftero defeating Ostapenko who had won the French Open, she was upset by veteran qualifier Kaia Kanepi.{{cite web|title=Kasatkina crushes Ostapenko in US Open third round|url=https://www.wtatennis.com/news/kasatkina-crushes-ostapenko-us-open-third-round|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220133/https://www.wtatennis.com/news/kasatkina-crushes-ostapenko-us-open-third-round |url-status=live}}{{cite web|title=Comeback Kanepi rolls into US Open QF|url=https://www.wtatennis.com/news/comeback-kanepi-rolls-us-open-qf|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220138/https://www.wtatennis.com/news/comeback-kanepi-rolls-us-open-qf |url-status=live}} Nonetheless, she built on this result in Asia, first by reaching another WTA doubles final with Gavrilova at the Pan Pacific Open.{{cite web|title=Klepac Triumphs In Tokyo|url=http://www.wtt.com/news/2017-klepac-wins-tokyo-doubles-crown-with-martinez-sanchez-laver-cup|website=World Team Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224170519/http://www.wtt.com/news/2017-klepac-wins-tokyo-doubles-crown-with-martinez-sanchez-laver-cup |url-status=live}} In singles at the Wuhan Open, she upset world No. 2, Halep.{{cite web|title=Composed Kasatkina stuns Halep in Wuhan|url=https://www.wtatennis.com/news/composed-kasatkina-stuns-halep-wuhan|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220149/https://www.wtatennis.com/news/composed-kasatkina-stuns-halep-wuhan |url-status=live}} She also made her second career Premier Mandatory quarterfinal at the China Open, this time losing to Halep.{{cite news|title=Halep wins Kasatkina grudge match to reach China Open semis|url=https://www.reuters.com/article/us-tennis-beijing-women/halep-wins-kasatkina-grudge-match-to-reach-china-open-semis-idUSKBN1CB296|website=Reuters|date=6 October 2017 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224170514/https://www.reuters.com/article/us-tennis-beijing-women/halep-wins-kasatkina-grudge-match-to-reach-china-open-semis-idUSKBN1CB296 |url-status=live}} Kasatkina closed out the year with her second best singles result of the season, a runner-up finish at her hometown Premier tournament, the Kremlin Cup. She upset fifth seed and world No. 18, Anastasia Pavlyuchenkova, in the first round, but was defeated by seventh seed Julia Görges in the final.{{cite web|title=Julia Goerges ends six-year title wait with victory at Kremlin Cup|url=http://www.tennis.com/pro-game/2017/10/goerges-ends-6-year-title-wait-with-victory-at-kremlin-cup/70089/|website=Tennis.com |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224170517/http://www.tennis.com/pro-game/2017/10/goerges-ends-6-year-title-wait-with-victory-at-kremlin-cup/70089/ |url-status=live}}

Kasatkina continued her late season success from the previous year into 2018. After only winning one match between three tournaments in Australia,{{cite web|title=Kanepi upsets Puig as more seeds fall in Melbourne|url=http://www.wtatennis.com/news/kanepi-upsets-puig-more-seeds-fall-melbourne|website=WTA Tennis|date=17 January 2018 | access-date=3 February 2018 | archive-date=23 January 2018 | archive-url=https://web.archive.org/web/20180123002024/http://www.wtatennis.com/news/kanepi-upsets-puig-more-seeds-fall-melbourne | url-status=live}} she reached the semifinals at the St. Petersburg Trophy and then the final at the Dubai Championships, two Premier tournaments.{{cite web|title=Mladenovic marvelous to reach second straight St. Petersburg final|url=http://www.wtatennis.com/news/mladenovic-marvelous-reach-second-straight-st-petersburg-final|website=WTA Tennis|date=3 February 2018 | access-date = 3 February 2018}} In St. Petersburg, she notably defeated then-world No. 1, Caroline Wozniacki.{{cite web|title=Kasatkina knocks off No.1 Wozniacki in St. Petersburg|website=WTA Tennis|url=http://www.wtatennis.com/news/kasatkina-knocks-no1-wozniacki-st-petersburg|date=2 February 2018 | access-date=3 February 2018 | archive-date=4 February 2018 | archive-url=https://web.archive.org/web/20180204000305/http://www.wtatennis.com/news/kasatkina-knocks-no1-wozniacki-st-petersburg | url-status=live}} In Dubai, she saved three match points en route to defeating another top-5 player in world No. 3, Garbiñe Muguruza, before losing to the defending champion and world No. 4, Elina Svitolina.{{cite web|title=Dubai Tennis: Daria Kasatkina saves three match points to upset Garbiñe Muguruza and reach final|url=https://sport360.com/article/tennis/268920/dubai-tennis-daria-kasatkina-saves-three-match-points-to-upset-garbine-muguruza-and-reach-final|website=Sport360 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224170546/https://sport360.com/article/tennis/268920/dubai-tennis-daria-kasatkina-saves-three-match-points-to-upset-garbine-muguruza-and-reach-final |url-status=live}}{{cite web|title=Elina Svitolina beats Daria Kasatkina to retain Dubai crown|url=http://www.tennis.com/pro-game/2018/02/no-comeback-for-kasatkina-as-svitolina-wins-again-in-dubai/72349/|website=Tennis.com |access-date=24 December 2018 |archive-date=11 December 2018 |archive-url=https://web.archive.org/web/20181211150142/http://www.tennis.com/pro-game/2018/02/no-comeback-for-kasatkina-as-svitolina-wins-again-in-dubai/72349/ |url-status=live}} Kasatkina's breakthrough came at Indian Wells, where she reached her second final of the season. She defeated four top-15 players at that event including Wozniacki again and also No. 8, Venus Williams, in a tight three-set match.{{cite web|title=Daria Kasatkina Wins Instant Classic Over Venus Williams, Into Final|url=https://bnpparibasopen.com/news/daria-kasatkina-wins-instant-classic-over-venus-williams-into-final/|website=BNP Paribas Open|date=17 March 2018 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224123327/https://bnpparibasopen.com/news/daria-kasatkina-wins-instant-classic-over-venus-williams-into-final/ |url-status=live}} She finished runner-up to fellow 20-year-old Naomi Osaka.{{cite news|title=Daria Kasatkina and Naomi Osaka Represent a New Wave|url=https://www.nytimes.com/2018/03/17/sports/tennis/daria-kasatkina-naomi-osaka-indian-wells.html|website=New York Times|date=17 March 2018 |access-date=24 December 2018|last1=Clarey|first1=Christopher |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224121956/https://www.nytimes.com/2018/03/17/sports/tennis/daria-kasatkina-naomi-osaka-indian-wells.html |url-status=live}}{{cite web|title=Osaka conquers Kasatkina to win first title in Indian Wells|url=https://www.wtatennis.com/news/osaka-conquers-kasatkina-win-first-title-indian-wells|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220145/https://www.wtatennis.com/news/osaka-conquers-kasatkina-win-first-title-indian-wells |url-status=live}} With this result, she climbed to No. 11 in the WTA rankings and also became the Russian No. 1, ending Kuznetsova's long run as Russia's top women's singles player.{{cite web|title=Two talented 20-year-olds in BNP Paribas Open final offer glimpse into future of women's tennis|url=https://www.desertsun.com/story/sports/tennis/bnp/2018/03/17/two-talented-20-year-olds-bnp-paribas-open-final-offer-glimpse-into-future-womens-tennis/435155002/|website=Desert Sun |access-date=24 December 2018 |archive-date=20 March 2019 |archive-url=https://web.archive.org/web/20190320212217/https://www.desertsun.com/story/sports/tennis/bnp/2018/03/17/two-talented-20-year-olds-bnp-paribas-open-final-offer-glimpse-into-future-womens-tennis/435155002/ |url-status=live}}

Kasatkina had strong clay- and grass-court seasons as well. She made the quarterfinals at the Charleston Open and the third round at the Premier 5 Italian Open.{{cite web|title=Goerges dethrones Kasatkina to reach semifinals in Charleston|url=http://www.wtatennis.com/news/goerges-dethrones-kasatkina-reach-semifinals-charleston|website=WTA Tennis|date=6 April 2018 | access-date=3 June 2018 | archive-date=23 May 2018 | archive-url=https://web.archive.org/web/20180523212754/http://www.wtatennis.com/news/goerges-dethrones-kasatkina-reach-semifinals-charleston | url-status=live}}{{cite web|title=Svitolina survives bagel to keep title defense on track in Rome|url=http://www.wtatennis.com/news/svitolina-survives-bagel-keep-title-defense-track-rome|website=WTA Tennis|date=17 May 2018 | access-date=3 June 2018 | archive-date=20 May 2018 | archive-url=https://web.archive.org/web/20180520010308/http://www.wtatennis.com/news/svitolina-survives-bagel-keep-title-defense-track-rome | url-status=live}} She also had another big result at a Premier Mandatory tournament, reaching the quarterfinals at the Madrid Open. During the event, she upset hometown favourite and world No. 3, Garbiñe Muguruza.{{cite web|title=Kasatkina moves past Muguruza in Madrid marathon|url=http://www.wtatennis.com/news/kasatkina-moves-past-muguruza-madrid-marathon|website=WTA Tennis|date=9 May 2018 | access-date=3 June 2018 | archive-date=12 June 2018 | archive-url=https://web.archive.org/web/20180612141523/http://www.wtatennis.com/news/kasatkina-moves-past-muguruza-madrid-marathon | url-status=live}} Her best tournament on clay was the French Open, where she reached her first Grand Slam quarterfinal. She defeated No. 2, Wozniacki, for the third time in 2018 in a match that was suspended midway through due to darkness, before losing to the eventual runner-up Sloane Stephens.{{cite web|title=Kasatkina completes Wozniacki stunner at Roland Garros|url=https://www.wtatennis.com/news/kasatkina-completes-wozniacki-stunner-roland-garros|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220519/https://www.wtatennis.com/news/kasatkina-completes-wozniacki-stunner-roland-garros |url-status=live}}{{cite web|title=Stephens storms into first French Open semifinal, downs Kasatkina|url=http://www.wtatennis.com/news/stephens-storms-first-french-open-semifinal-downs-kasatkina|website=WTA Tennis|date=5 June 2018 | access-date=28 June 2018 | archive-date=28 June 2018 | archive-url=https://web.archive.org/web/20180628185509/http://www.wtatennis.com/news/stephens-storms-first-french-open-semifinal-downs-kasatkina | url-status=live}} Another Grand Slam quarterfinal followed at Wimbledon, losing to the eventual champion and world No. 11, Angelique Kerber.{{cite web|title=Kerber claims Wimbledon semifinal spot over Kasatkina|url=http://www.wtatennis.com/news/kerber-claims-wimbledon-semifinal-spot-over-kasatkina|website=WTA Tennis|date=10 July 2018 | access-date=9 August 2018 | archive-date=9 August 2018 | archive-url=https://web.archive.org/web/20180809152829/http://www.wtatennis.com/news/kerber-claims-wimbledon-semifinal-spot-over-kasatkina | url-status=live}}

{{quote box|width=34%|border=1px|align=left|bgcolor=#FDDDE4|quote="It was a dream of mine since childhood, to win the Kremlin Cup in front of my crowd. I'm so happy, I still can't believe it... There were fans from Russia, from Tunisia, from everywhere – the atmosphere felt more like Fed Cup, but it was great. But it was amazing because this is what sport is about, the passion."|source=—Kasatkina on her Kremlin Cup title.|}}

Kasatkina failed to continue her Grand Slam tournament success at the US Open losing in the second round.{{Cite web|url=http://www.tennisactu.net/news-us-open-sasnovich-a-fait-tomber-kasatkina-des-le-2e-tour-77496.html|title=US Open – Sasnovich a fait tomber Kasatkina dès le 2e tour|website=Tennis Actu|language=fr|access-date=21 October 2018|archive-date=21 October 2018|archive-url=https://web.archive.org/web/20181021190855/http://www.tennisactu.net/news-us-open-sasnovich-a-fait-tomber-kasatkina-des-le-2e-tour-77496.html|url-status=live}} In October, she returned to Russia and won the Kremlin Cup for her only title of the season. She defeated Tunisian qualifier Ons Jabeur in the final. With the title, she also made her top 10 debut.{{cite web|title='It was my childhood dream': Home favorite Kasatkina denies Jabeur to claim Moscow crown|url=https://www.wtatennis.com/news/it-was-my-childhood-dream-home-favorite-kasatkina-denies-jabeur-claim-moscow-crown|website=WTA Tennis |access-date=24 December 2018 |archive-date=1 April 2019 |archive-url=https://web.archive.org/web/20190401114627/https://www.wtatennis.com/news/it-was-my-childhood-dream-home-favorite-kasatkina-denies-jabeur-claim-moscow-crown |url-status=live}} Kasatkina was initially named the second alternate for the WTA Finals. With only one withdrawal, she instead participated in the WTA Elite Trophy, where she was grouped with Madison Keys and Wang Qiang. She began the round robin with a win over Wang, but lost to Keys in a match where she had to play on a short amount of rest while Keys was playing her first match. As a result, she finished in last place in the group through the tiebreak criteria.{{cite web|title=Kasatkina overcomes Wang in topsy-turvy Zhuhai opener|url=https://www.wtatennis.com/news/kasatkina-overcomes-wang-topsy-turvy-zhuhai-opener|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220543/https://www.wtatennis.com/news/kasatkina-overcomes-wang-topsy-turvy-zhuhai-opener |url-status=live}}{{cite web|title=Daria Kasatkina hits out at WTA Elite Trophy scheduling after Madison Keys defeat|url=https://www.thenational.ae/sport/tennis/daria-kasatkina-hits-out-at-wta-elite-trophy-scheduling-after-madison-keys-defeat-1.786652|website=The National|date=31 October 2018 |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220410/https://www.thenational.ae/sport/tennis/daria-kasatkina-hits-out-at-wta-elite-trophy-scheduling-after-madison-keys-defeat-1.786652 |url-status=live}} Kasatkina finished the year ranked No. 10 in the world.

File:Kasatkina RG19 (7) (48199243662).jpg]]

Kasatkina could not repeat the success from any of her full seasons on the WTA Tour during 2019. After beginning the year in the top ten, her ranking dropped throughout the season down to as low as No. 70 near the end of the year. Whereas she won at least 60% of her matches in each of her three previous years, she finished 2019 with a losing record of 12–21.{{cite web|title=Daria Kasatkina Statistics|url=https://www.coretennis.net/tennis-player/daria-kasatkina/38043/stats.html|website=Core Tennis |access-date=27 October 2019 |archive-date=27 October 2019 |archive-url=https://web.archive.org/web/20191027051921/https://www.coretennis.net/tennis-player/daria-kasatkina/38043/stats.html |url-status=live}} She parted with her longtime coach Philippe Dehaes in February, replacing him with Carlos Martinez in April.{{cite web|title=Kasatkina announces split with Dehaes|url=https://www.wtatennis.com/news/kasatkina-announces-split-dehaes|website=WTA Tennis |date=21 February 2019 |access-date=27 October 2019 |archive-date=27 March 2019 |archive-url=https://web.archive.org/web/20190327102654/https://www.wtatennis.com/news/kasatkina-announces-split-dehaes |url-status=live}}{{cite web|title=Kasatkina putting 'disaster' start behind her: 'I'm not panicking'|url=https://www.wtatennis.com/news/kasatkina-putting-disaster-start-behind-her-im-not-panicking|website=WTA Tennis |access-date=27 October 2019 |archive-date=27 October 2019 |archive-url=https://web.archive.org/web/20191027051920/https://www.wtatennis.com/news/kasatkina-putting-disaster-start-behind-her-im-not-panicking |url-status=live}}

Kasatkina's results did not improve with Martinez as her coach. She did not make the semifinals at any event. Kasatkina won multiple matches at two tournaments during the year, the Premier 5 Italian Open in May and the Premier Mandatory China Open in October where she won three matches and made the quarterfinals. At the China Open, she defeated No. 14, Aryna Sabalenka and No. 38, Ekaterina Alexandrova, before losing to No. 19, Caroline Wozniacki.{{cite web|title='The Russian wall is back!' – Kasatkina quells Alexandrova to make Beijing quarters|url=https://www.wtatennis.com/news/russian-wall-back-kasatkina-quells-alexandrova-make-beijing-quarters|website=WTA Tennis |access-date=27 October 2019 |archive-date=27 October 2019 |archive-url=https://web.archive.org/web/20191027051920/https://www.wtatennis.com/news/russian-wall-back-kasatkina-quells-alexandrova-make-beijing-quarters |url-status=live}} Kasatkina's losses were generally against good competition, with only seven of her 21 losses coming against players ranked outside of the top 50. The highest-ranked opponent she defeated during the year was No. 13, Angelique Kerber, in the first round of the Canadian Open. Kasatkina remained in the top 50 until the very end of the season, when she lost the points she was defending from the previous year's WTA Elite Trophy.

In 2020, Kasatkina first participated in Auckland, where she defeated Carla Suárez Navarro before falling to Amanda Anisimova in the second round. At Adelaide, she progressed through qualifying, before being defeated by Belinda Bencic in the first main-draw round. At the Australian Open, she lost to Madison Keys in the first round. At St. Petersburg, she lost in the first round to Ekaterina Alexandrova, and, at Dubai, was forced to enter qualifying. She defeated Natalia Vikhlyantseva in the first round, but lost to Kristina Mladenovic in the second qualifying round. At Doha, she entered the main draw through qualification, defeating Vikhlyantseva and Aliaksandra Sasnovich, but she lost in the first round of the main draw to Garbiñe Muguruza. She reached her first semifinal since 2018 at Lyon where, as the seventh seed, she defeated Pauline Parmentier, Irina Bara, and Camila Giorgi, before being defeated in three sets by Anna-Lena Friedsam. By virtue of her result in this tournament, Kasatkina's ranking rose to No. 66, before the suspension of the WTA Tour due to the COVID-19 pandemic.{{citation needed|date=March 2022}}

Kasatkina's first tournament after the suspension was at Palermo, where she lost in the first round to Jasmine Paolini, in a match that lasted 3 hours and 9 minutes; this match was the fourth longest on the WTA Tour in the entirety of 2020.{{cite web|url=http://wtafiles.wtatennis.com/pdf/rankings/WTAMatchStats.pdf|title=2020 Match Stats|work=Women's Tennis Association|access-date=3 January 2021|archive-date=17 November 2019|archive-url=https://web.archive.org/web/20191117182221/http://wtafiles.wtatennis.com/pdf/rankings/WTAMatchStats.pdf|url-status=live}} She then qualified for the Cincinnati Open, defeating Kateryna Bondarenko and Christina McHale, before losing in the first round to Anett Kontaveit. At the US Open, she lost in the first round to Marta Kostyuk, winning just three games. She next qualified for the Italian Open, defeating Arina Rodionova and Gabriela Dabrowski, and reached the third round after defeating Vera Zvonareva and Kateřina Siniaková. She withdrew from the competition, however, as she injured herself during a first-set tiebreak against Victoria Azarenka. She recuperated in time for the French Open, where she defeated Harmony Tan in the first round, before falling to Aryna Sabalenka. Her final event of the year was at the inaugural tournament in Ostrava, where she defeated Bethanie Mattek-Sands and Marie Bouzková to qualify. She defeated Elena Rybakina in the first round, before losing to Jennifer Brady, despite leading by 5–2 in the first set, eventually losing that set 7–5. She ended the year ranked No. 72, her lowest year-end ranking since 2015.{{citation needed|date=March 2022}}

File:Kasatkina RG21 (14) (51376890144).jpg]]

Kasatkina kicked off her 2021 season at the Abu Dhabi Open, where she defeated Wang Qiang in the first round in three sets.{{Cite web|title=Kasatkina kicks off 2021 with comeback win over Wang|url=https://www.wtatennis.com/news/1966764/kasatkina-kicks-off-2021-with-comeback-win-over-wang|access-date=2021-12-15|publisher=Women's Tennis Association}} She was due to face 12th seed Karolína Muchová but the Czech withdrew, sending Kasatkina into the third round. There she lost to sixth seed Elena Rybakina, in straight sets.{{citation needed|date=March 2022}}

She then played in the Gippsland Trophy and made the third round with straight sets wins over Mihaela Buzărnescu, with the loss of just two games,{{Cite web|title=Ostapenko ousts Errani, Garcia grabs victory at Gippsland Trophy|url=https://www.wtatennis.com/news/2004956/ostapenko-ousts-errani-garcia-grabs-victory-at-gippsland-trophy|access-date=2021-12-15|publisher=Women's Tennis Association}} and Polona Hercog. However, she lost to Estonian veteran and eventual finalist, Kaia Kanepi, in straight sets.{{Cite web|title=Gippsland Trophy: Halep keeps rolling, Alexandrova upsets Swiatek|url=https://www.wtatennis.com/news/2010476/gippsland-trophy-halep-keeps-rolling-alexandrova-upsets-swiatek|access-date=2021-12-15|publisher=Women's Tennis Association}} At the Australian Open, she defeated Briton Katie Boulter, in straight sets,{{Cite web|title=Russia's Kasatkina starts 2021 Australian Open with confident win over Britain's Boulter|url=https://tass.com/sport/1253613|access-date=2022-01-06|website=TASS}} before losing in two tight sets to Aryna Sabalenka despite winning more points in the first set.{{Cite web|title=Sabalenka keen for clear thoughts in major hunt|url=https://ausopen.com/articles/news/sabalenka-keen-clear-thoughts-major-hunt|access-date=2021-12-15|website=ausopen.com}} Kasatkina bounced back from that loss emphatically at the Phillip Island Trophy, held during the second week of the Australian Open.{{Cite web|title=New AO lead-in schedule to help players in lockdown|url=https://ausopen.com/articles/news/new-ao-lead-schedule-help-players-lockdown|access-date=2021-12-15|website=ausopen.com}} She defeated Katie Boulter for the second time in five days{{Cite web|title=Doi, Gracheva kick off Phillip Island Trophy with Garcia, Stephens upsets|url=https://www.wtatennis.com/news/2025919/doi-gracheva-kick-off-phillip-island-trophy-with-garcia-stephens-upsets|access-date=2021-12-15|publisher=Women's Tennis Association}} and Varvara Gracheva, in straight sets, to record back to back wins for the third time in four events that season. The Russian then came from a set down to edge Anastasia Pavlyuchenkova,{{Cite web|title=Andreescu, Martić, Collins move into Phillip Island Trophy quarters|url=https://www.wtatennis.com/news/2031561/andreescu-martic-collins-move-into-phillip-island-trophy-quarters|access-date=2021-12-15|publisher=Women's Tennis Association}} before dominating Petra Martić to make her first WTA semifinal since Lyon in 2020. She then defeated Danielle Collins{{Cite web|title=Kasatkina, Bouzkova set Phillip Island Trophy final clash|url=https://www.wtatennis.com/news/2033861/kasatkina-bouzkova-set-phillip-island-trophy-final-clash|access-date=2021-12-15|publisher=Women's Tennis Association}} and Marie Bouzková in three sets to claim her third title and first since Moscow 2018.{{Cite web|title=Kasatkina outlasts Bouzkova at Phillip Island Trophy to end title drought|url=https://www.wtatennis.com/news/2035256/kasatkina-outlasts-bouzkova-at-phillip-island-trophy-to-end-title-drought|access-date=2021-12-15|publisher=Women's Tennis Association}}{{Cite web|title=Emotional Kasatkina wins WTA Phillip Island Trophy|url=https://ausopen.com/articles/news/emotional-kasatkina-wins-wta-phillip-island-trophy|access-date=2021-12-15|website=ausopen.com}} The win pushed Kasatkina up to No. 57 in the world.{{citation needed|date=March 2022}}

However, she crashed out in her opening-round match in Dubai to Alizé Cornet.{{Cite web|title=Alizé Cornet domine Daria Kasatkina à Dubaï|url=https://www.lequipe.fr/Tennis/Actualites/Alize-cornet-domine-daria-kasatkina-a-dubai/1230066|access-date=2021-12-15|website=L'Équipe|language=fr}} She bounced back at the St. Petersburg Ladies' Trophy, halting the winning streak of rising star Clara Tauson in the first round.{{Cite web|title=Kasatkina halts Tauson as Russians surge in St. Petersburg|url=https://www.wtatennis.com/news/2070041/kasatkina-halts-tauson-as-russians-surge-in-st-petersburg|access-date=2021-12-15|publisher=Women's Tennis Association}} Kasatkina then fought hard for a three-set win over Aliaksandra Sasnovich, who served for the match.{{Cite web|title=Kasatkina, Kudermetova lead historic Russian charge in St. Petersburg|url=https://www.wtatennis.com/news/2071394/kasatkina-kudermetova-lead-historic-russian-charge-in-st-petersburg|access-date=2021-12-15|publisher=Women's Tennis Association}} Back-to-back comeback wins came over compatriots Veronika Kudermetova{{Cite web|date=2021-03-19|title=KASATKINA STOPPED KUDERMETOVA FROM REACHING THE SEMIS|url=https://lt.formulatx.com/blog/2021/03/19/kasatkina-ne-pustila-kudermetovu-v-polufinal/|access-date=2021-12-15|website=ST. PETERSBURG LADIES TROPHY 2022|archive-date=28 October 2021|archive-url=https://web.archive.org/web/20211028125547/https://lt.formulatx.com/blog/2021/03/19/kasatkina-ne-pustila-kudermetovu-v-polufinal/|url-status=dead}} and Svetlana Kuznetsova.{{Cite web|title=Kasatkina, Gasparyan dazzle to set all-Russian final in St. Petersburg|url=https://www.wtatennis.com/news/2072734/kasatkina-gasparyan-dazzle-to-set-all-russian-final-in-st-petersburg|access-date=2021-12-15|publisher=Women's Tennis Association}} She then defeated wildcard Margarita Gasparyan in the final after Gasparyan was forced to retire early in the second set.{{Cite web|title=Kasatkina captures St. Petersburg title after Gasparyan forced to retire|url=https://www.wtatennis.com/news/2073694/kasatkina-captures-st-petersburg-title-after-gasparyan-forced-to-retire|access-date=2021-12-15|publisher=Women's Tennis Association}} This was Kasatkina's second title at home and this also made her the first two-time champion of the 2021 season, moving herself back into the top 50 for the first time since October 2019.{{Cite web|title=Champions Corner: From no expectations to two titles for Daria Kasatkina|url=https://www.wtatennis.com/news/2075776/champions-corner-from-no-expectations-to-two-titles-for-daria-kasatkina|access-date=2021-12-15|publisher=Women's Tennis Association}}

Despite clay being her favoured surface, Kasatkina failed to reach a quarterfinal throughout the clay-court season. She was upset by Marta Kostyuk in the second round of the İstanbul Cup,{{Cite web|title=Kostyuk upsets Kasatkina in shotmaking thriller to reach Istanbul QFs: Highlights|url=https://www.wtatennis.com/videos/2113023/kostyuk-upsets-kasatkina-in-shotmaking-thriller-to-reach-istanbul-qfs-highlights|access-date=2021-12-15|publisher=Women's Tennis Association}} before falling to Sabalenka in the second round of the Madrid Open.{{Cite web|title=Sabalenka advances, Pavlyuchenkova upsets Pliskova in Madrid|url=https://www.wtatennis.com/news/2126497/sabalenka-advances-pavlyuchenkova-upsets-pliskova-in-madrid|access-date=2021-12-15|publisher=Women's Tennis Association}} At the French Open, Kasatkina defeated tenth seed Belinda Bencic, in straight sets, to make the third round for the first time since 2018.{{Cite web|title=Kasatkina dismisses Bencic, Siniakova pulls off comeback vs. Kudermetova in Paris|url=https://www.wtatennis.com/news/2164539/kasatkina-dismisses-bencic-siniakova-pulls-off-comeback-vs-kudermetova-in-paris|access-date=2021-12-15|publisher=Women's Tennis Association}} She was defeated by Sorana Cîrstea in straight sets.{{Cite web|title=Azarenka, Cîrstea charge into Roland Garros round of 16|url=https://www.wtatennis.com/news/2165876/azarenka-cirstea-charge-into-roland-garros-round-of-16|access-date=2021-12-15|publisher=Women's Tennis Association}}

File:Ons Jabeur & Daria Kasatkina (51314151309).jpg at the 2021 Birmingham Classic]]

Seeded fourth, Kasatkina reached the final at the Birmingham Classic. This was her eighth career final, first on grass and third of 2021.{{Cite web|url=https://www.wtatennis.com/news/2175145/jabeur-kasatkina-pull-double-duty-to-set-birmingham-final|title=Jabeur, Kasatkina pull double duty to set Birmingham final|publisher=Women's Tennis Association|access-date=19 June 2021|archive-date=24 June 2021|archive-url=https://web.archive.org/web/20210624200849/https://www.wtatennis.com/news/2175145/jabeur-kasatkina-pull-double-duty-to-set-birmingham-final|url-status=live}} Her run started with a comeback from 4–6, 0–3 against Polona Hercog in the first round,{{Cite web|title=Kasatkina clinches comeback win over Hercog: Birmingham Highlights|url=https://www.wtatennis.com/videos/2172361/kasatkina-clinches-comeback-win-over-hercog-birmingham-highlights|access-date=2021-12-15|publisher=Women's Tennis Association}} before avenging her loss against Kostyuk,{{Cite web|title=Kasatkina captures first win over Kostyuk to make Birmingham QF: Highlights|url=https://www.wtatennis.com/videos/2174019/kasatkina-captures-first-win-over-kostyuk-to-make-birmingham-qf-highlights|access-date=2021-12-15|publisher=Women's Tennis Association}} ousting Tereza Martincová and CoCo Vandeweghe to reach the final.{{Cite web|title=Jabeur, Kasatkina pull double duty to set Birmingham final|url=https://www.wtatennis.com/news/2175145/jabeur-kasatkina-pull-double-duty-to-set-birmingham-final|access-date=2021-12-15|publisher=Women's Tennis Association}} However, she lost to Ons Jabeur in straight sets.{{Cite web|title=History Made: Jabeur defeats Kasatkina to win first singles title in Birmingham|url=https://www.wtatennis.com/news/2175423/history-made-jabeur-defeats-kasatkina-to-win-first-singles-title-in-birmingham|access-date=2021-12-15|publisher=Women's Tennis Association}} She lost in the quarterfinals of the Eastbourne International to Jeļena Ostapenko{{Cite web|title=Ostapenko fights past Kasatkina; Rybakina saves 2 match points in Eastbourne|url=https://www.wtatennis.com/news/2178277/ostapenko-fights-past-kasatkina-rybakina-saves-2-match-points-in-eastbourne|access-date=2021-12-15|publisher=Women's Tennis Association}} after securing her first top ten win in two years over Iga Świątek, losing just one game after dropping the opening set.{{Cite web|title=Kontaveit ousts Andreescu; Kasatkina upsets Swiatek in Eastbourne|url=https://www.wtatennis.com/news/2177584/kontaveit-ousts-andreescu-kasatkina-upsets-swiatek-in-eastbourne|access-date=2021-12-15|publisher=Women's Tennis Association}} Kasatkina's grass-court season ended with a second-round appearance at the Wimbledon Championships, losing to Ostapenko 6–8 in the final set.{{Cite news|date=2021-07-01|title=Hit or miss, but Ostapenko blazes into third round|work=Reuters|url=https://www.reuters.com/lifestyle/sports/hit-or-miss-ostapenko-blazes-into-third-round-2021-07-01/|access-date=2021-12-15}}

Kasatkina reached her fourth final of the year at the Silicon Valley Classic, beating former top ten player Caroline Garcia, in three sets,{{Cite web|last=Tennis.com|title=Life lessons in hand, Daria Kasatkina comes from behind to defeat Caroline Garcia in San Jose|url=https://www.tennis.com/news/articles/life-lessons-in-hand-daria-kasatkina-comes-from-behind-to-defeat-caroline-garcia|access-date=2021-12-15|website=Tennis.com}} before coming back to avoid the upset against Magda Linette in the quarterfinals.{{Cite web|title=Kasatkina, Mertens claim victories to set semifinal clash in San Jose|url=https://www.wtatennis.com/news/2208688/kasatkina-mertens-claim-victories-to-set-semifinal-clash-in-san-jose|access-date=2021-12-15|publisher=Women's Tennis Association}} She then dominated top seed Elise Mertens without getting broken,{{Cite web|title=Kasatkina ousts Mertens; Collins breezes past Konjuh in San Jose semis|url=https://www.wtatennis.com/news/2209999/kasatkina-ousts-mertens-collins-breezes-past-konjuh-in-san-jose-semis|access-date=2021-12-15|publisher=Women's Tennis Association}} but lost to home favourite Danielle Collins in the final.{{Cite web|last=Tennis.com|title=Danielle Collins triumphs over Kasatkina in San Jose final, win streak up to 10|url=https://www.tennis.com/news/articles/danielle-collins-triumphs-vs-daria-kasatkina-san-jose-final-10-match-win-streak|access-date=2021-12-15|website=Tennis.com}} After early defeats at the Canadian Open and Cincinnati Open to Jabeur{{Cite web|title=Collins ousts returning Halep in Montreal to win 12th straight match|url=https://www.wtatennis.com/news/2212948/collins-ousts-returning-halep-in-montreal-to-win-12th-straight-match|access-date=2021-12-15|publisher=Women's Tennis Association}} and world No. 10, Barbora Krejčíková,{{Cite web|title=Flawless Krejcikova dismantles Kasatkina; Kvitová, Ostapenko win Cincinnati openers|url=https://www.wtatennis.com/news/2221857/flawless-krejcikova-dismantles-kasatkina-kvitova-ostapenko-win-cincinnati-openers|access-date=2021-12-15|publisher=Women's Tennis Association}} respectively, Kasatkina reached the third round of the US Open with wins over defending quarterfinalist Tsvetana Pironkova and Olympics silver medalist, Markéta Vondroušová,{{Cite web|last=Oddo|first=Chris|title=Daria Kasatkina finding her joy in tennis once more amid resurgence|url=https://www.usopen.org/en_US/news/articles/2021-09-03/daria_kasatkina_finding_her_joy_in_tennis_once_more_amid_resurgence.html|url-status=live|access-date=15 Dec 2021|website=US Open|archive-url=https://web.archive.org/web/20210903171532/https://www.usopen.org/en_US/news/articles/2021-09-03/daria_kasatkina_finding_her_joy_in_tennis_once_more_amid_resurgence.html |archive-date=3 September 2021}} but lost to fifth seed Elina Svitolina, in straight sets.{{Cite web|title=Kerber upends Stephens; Muguruza ousts Azarenka; Svitolina sweeps at US Open|url=https://www.wtatennis.com/news/2242661/kerber-upends-stephens-muguruza-ousts-azarenka-svitolina-sweeps-at-us-open|access-date=2021-12-15|publisher=Women's Tennis Association}}

Her season ended with a third-round defeat at the Indian Wells Open to Angelique Kerber, in three sets{{Cite web|title=Kerber overcomes Kasatkina in Indian Wells; Kontaveit ends Andreescu's reign|url=https://www.wtatennis.com/news/2287064/kerber-overcomes-kasatkina-in-indian-wells-kontaveit-ends-andreescu-s-reign|access-date=2021-12-15|publisher=Women's Tennis Association}} and a surprising first-round exit to Anhelina Kalinina in the first round of the Kremlin Cup.{{Cite web|title=Kalinina upsets former champion Kasatkina in Moscow opener|url=https://www.wtatennis.com/news/2296970/kalinina-upsets-former-champion-kasatkina-in-moscow-opener|access-date=2021-12-15|publisher=Women's Tennis Association}}

File:2022-06 Darja Sergejewna Kassatkina (cropped).jpg]]

Kasatkina began the year ranked No. 26. She first played the Melbourne Summer Set 2, a WTA 250 event, as the third seed; here, she reached the semifinals by defeating Anna Kalinskaya, Madison Keys, and Nuria Párrizas Díaz before losing to eventual champion Amanda Anisimova. The next week, she reached a second consecutive semifinal, this time at the Sydney International, a WTA 500 event. She defeated eighth seed Sofia Kenin, Elise Mertens, and second seed Garbiñe Muguruza, before losing to fifth seed and eventual champion, Paula Badosa. Kasatkina next reached the third round of the 2022 Australian Open as the 25th seed, defeating qualifier Stefanie Vögele and Magda Linette, before falling to seventh seed Iga Świątek.{{citation needed|date=June 2023}}

In the next hardcourt events, Kasatkina was defeated by Iga Świątek in both Dubai and Doha in the first and third rounds, respectively. She lost to Angelique Kerber in Indian Wells third round and to Aliaksandra Sasnovich in Miami second round in receipt of first-round byes.{{citation needed|date=June 2023}}

At the Italian Open, she reached her first WTA 1000 semifinal of the season and second of her career, where she was defeated by Ons Jabeur, after having a match point.{{cite web|url=https://www.wtatennis.com/news/2616965/jabeur-saves-match-point-extends-winning-streak-to-11-in-rome|title=Jabeur saves match point in Rome semis, extends winning streak to 11}} As a result, she returned to the top 20 in the rankings, becoming once again the No. 1 Russian player on 16 May 2022.{{citation needed|date=June 2023}}

Kasatkina entered the French Open as the 20th seed. She defeated lucky loser Rebecca Šramková, qualifier Fernanda Contreras, Shelby Rogers, and 28th seed Camila Giorgi to reach the quarterfinals, matching her best result at the tournament from 2018. She then went one step further, defeating compatriot and 29th seed Veronika Kudermetova to reach her maiden Grand Slam semifinal. She then lost in straight sets to world No. 1, Iga Świątek, for the fourth time this year. This run secured her a top 15 ranking for the first time since early 2019.{{citation needed|date=June 2023}}

Kasatkina played two tournaments on grass, Berlin and Bad Homburg; she was defeated in the quarterfinals by Maria Sakkari and Bianca Andreescu, respectively.{{cite web|url=https://www.wtatennis.com/news/2648202/sakkari-posts-first-win-over-kasatkina-to-make-berlin-semis|title=Sakkari posts first win over Kasatkina to make Berlin semis|work=WTA|date=17 June 2022}}{{cite web|url=https://www.espn.com/tennis/story/_/id/34137365/bianca-andreescu-beats-daria-kasatkina-reaches-first-semi-grass-bad-homburg|title=Bianca Andreescu beats Daria Kasatkina, reaches first semifinal on grass at Bad Homburg|work=ESPN|date=24 June 2022}} She did not compete in Wimbledon due to the All England Club's decision to ban Russian and Belarusian players, in response to the Russian invasion of Ukraine.{{cite news|url=https://www.washingtonpost.com/sports/2022/04/20/wimbledon-ban-russian-belarusian-players/|title=Wimbledon bans Russian and Belarusian players over invasion of Ukraine|newspaper=Washington Post|date=20 April 2022|access-date=21 July 2022}}

At the Silicon Valley Classic, she reached the semifinals again defeating Wimbledon champion Elena Rybakina,{{cite web | url=https://www.tennismajors.com/wta-tour-news/san-jose-open-kasatkina-through-to-second-round-615118.html | title=Tennis, WTA – San Jose Open 2022: Kasatkina eliminates Rybakina | date=2 August 2022 }} qualifier Taylor Townsend{{cite web | url=https://www.wtatennis.com/videos/2715861/san-jose-kasatkina-unwinds-townsend-to-return-to-qfs | title=San Jose: Kasatkina unwinds Townsend to return to QFS }} and world No. 6 and fourth seed, Aryna Sabalenka, in three sets. She bageled each opponent in the last set in the match. She reached back-to-back finals, after defeating world No. 4 and second seed, Paula Badosa. She defeated Shelby Rogers in the final, securing a WTA 500 title and returning to the top 10 in the rankings at a new career-high of world No. 9 on 8 August 2022. She became tied for third in wins in the season with 32, behind only No. 1 Iga Świątek, and Wimbledon finalist Ons Jabeur.{{cite web | url=https://www.wtatennis.com/news/2733387/kasatkina-beats-rogers-to-win-san-jose-returns-to-top-10 | title=Kasatkina beats Rogers to win San Jose and return to Top 10 }}{{cite web | url=https://www.wtatennis.com/news/2733399/champions-corner-how-kasatkina-toppled-the-field-in-san-jose | title=Champions Corner: How Kasatkina toppled the field in San Jose }}

After getting eliminated by Bianca Andreescu and Amanda Anisimova in the opening rounds of Toronto and Cincinnati, respectively, Kasatkina won her sixth career title in Granby. She defeated Greet Minnen, Magdalena Fręch, Nuria Párrizas Díaz, Diane Parry and Daria Saville losing just one set en-route to win the title.{{cite web | url=https://www.wtatennis.com/news/2765769/kasatkina-beats-saville-in-granby-wins-second-title-of-2022 | title=Kasatkina beats Saville in Granby, wins second title of 2022 }} However, she fell to Harriet Dart in the first round of the US Open.

Seeded fifth at the Ostrava Open, Kasatkina defeated Emma Raducanu in the first round, before falling to Ekaterina Alexandrova in straight sets.{{Cite web|url=https://www.wtatennis.com/news/2839461/three-takeaways-kasatkina-scores-first-win-since-august-beats-raducanu|title=Three takeaways: Kasatkina scores first win since August, beats Raducanu}} Seeded No. 8 at the San Diego Open, she breezed past Leylah Fernandez, before losing to Madison Keys in the second round. In receipt of a first-round bye in Guadalajara, she was defeated in the third round by Anna Kalinskaya, in three sets. With this result, she qualified for her first WTA Finals.{{Cite web|url=https://www.wtatennis.com/news/2865210/sabalenka-and-kasatkina-qualify-for-2022-wta-finals|title=Sabalenka and Kasatkina qualify for 2022 WTA Finals}}{{Cite web|url=https://www.wtatennis.com/news/2876378/road-to-the-wta-finals-daria-kasatkina|title=Road to the WTA Finals: Daria Kasatkina}} She also reached a new career-high ranking of world No. 8, on 24 October 2022.{{citation needed|date=June 2023}}

At the WTA Finals, Kasatkina lost to Świątek again before she earned her first victory of the Finals against Coco Gauff, in straight sets, but she could not advance beyond round-robin stage as she was defeated by Caroline Garcia in a close three-set match.{{cite web|url=https://www.wtatennis.com/news/2889958/kasatkina-keeps-title-hopes-alive-with-win-over-gauff-in-fort-worth|title=Kasatkina keeps title hopes alive with win over Gauff in Fort Worth}}{{cite web|url=https://www.wtatennis.com/news/2893849/garcia-edges-out-kasatkina-to-advance-to-wta-finals-semifinals|title=Garcia edges Kasatkina to advance to WTA Finals semifinals}}

File:Daria Kasatkina (2023 DC Open) 01.jpg]]

Kasatkina started the season at the Adelaide International 1. Seeded third, she lost in the first round to qualifier Linda Nosková, in three sets.{{cite web|url=https://www.wtatennis.com/news/3004282/noskova-stuns-kasatkina-kudermetova-cruises-in-adelaide-round-1|title=Noskova stuns Kasatkina, Kudermetova cruises in Adelaide Round 1|publisher=Women's Tennis Association}} In the second event of Adelaide, after a first-round bye, she defeated Barbora Krejčíková{{Cite web|url=https://www.wtatennis.com/news/3015690/garcia-badosa-kasatkina-book-quarterfinal-slots-at-adelaide-2|title=Garcia, Badosa, Kasatkina book quarterfinal slots at Adelaide 2|publisher=Women's Tennis Association}} and Petra Kvitová in straight sets, before receiving a walkover from Paula Badosa to the final.{{Cite web|url=https://www.wtatennis.com/news/3017389/kasatkina-bencic-advance-to-adelaide-2-final-via-walkovers|title=Kasatkina, Bencic advance to Adelaide 2 final via walkovers|publisher=Women's Tennis Association}} In the final, she was defeated by Belinda Bencic, in straight sets.{{Cite web|url=https://www.wtatennis.com/news/3018602/bencic-storms-to-seventh-career-title-at-adelaide-2|title=Bencic storms to seventh career title at Adelaide 2|publisher=Women's Tennis Association}} Seeded eighth at the Australian Open, Kasatkina lost in the first round to Varvara Gracheva, in straight sets.{{Cite web|url=https://www.tennisworldusa.org/tennis/news/WTA_Tennis/127105/daria-kasatkina-after-australian-open-loss-to-varvara-gracheva-i-was-quite-empty/|title=Daria Kasatkina after Australian Open loss to Varvara Gracheva: I was quite empty|date=19 January 2023|publisher=Tennis Work USA }}

At the French Open, she reached the fourth round in which she lost to Elina Svitolina.{{cite web| title=Svitolina bests Kasatkina again to advance to Roland Garros quarterfinals | url=https://www.wtatennis.com/news/3529412/svitolina-bests-kasatkina-again-to-advance-to-roland-garros-quarterfinals | work=WTA Tennis | date = 4 June 2023 | accessdate = 5 June 2023}}

At the Eastbourne International, she advanced to the final defeating second seed Caroline Garcia by walkover and Camila Giorgi.{{cite web | url=https://www.wtatennis.com/news/3562420/keys-defeats-gauff-in-eastbourne-meets-kasatkina-in-final | title=Keys defeats Gauff in Eastbourne; meets Kasatkina in final }} Kasatkina lost the final to Madison Keys.{{cite web|url=https://www.wtatennis.com/news/3563539/keys-outlasts-kasatkina-to-win-second-eastbourne-title|title=Keys outlasts Kasatkina to win second Eastbourne title|publisher=Women's Tennis Association|accessdate=6 November 2024}}

At the US Open, Kasatkina matched her best ever US Open result, advancing to the fourth round of the tournament by defeating Alycia Parks, Sofia Kenin and Greet Minnen. In the round of 16 and her first time playing in the main Arthur Ashe Stadium, she was defeated by the world No. 1, Aryna Sabalenka.{{Cite web |last=Chiesa |first=Victoria |date= |title=Daria Kasatkina ends Greet Minnen's run, matches best US Open result |url=https://www.usopen.org/en_US/news/articles/2023-09-02/daria_kasatkina_ends_greet_minnens_run_matches_best_us_open_result.html|publisher=US Open }}

In Adelaide, she reached a second consecutive final after a second consecutive walkover from second seed Jessica Pegula, after Laura Siegemund withdrew in the quarterfinals.{{cite web|url=https://www.wtatennis.com/news/3854419/ostapenko-to-face-kasatkina-in-adelaide-final-pegula-withdraws|title=Ostapenko to face Kasatkina in Adelaide final; Pegula withdraws|publisher=Women's Tennis Association}} In the final, Kasatkina lost to Jeļena Ostapenko.

{{cite web| title=Ostapenko rolls to Adelaide International title; secures Top 10 return | url=https://www.wtatennis.com/news/3855681/ostapenko-rolls-to-adelaide-international-title-secures-top-10-return | work=WTA Tennis | date = 13 January 2024 | accessdate = 13 January 2024}} Seeded 14th at the Australian Open, Kasatkina fell in the second round to Sloane Stephens.{{cite web|url=https://www.tennismajors.com/australian-open-news/australian-open-stephens-takes-out-kasatkina-738191.html|title=Australian Open: Stephens takes out Kasatkina|date=18 January 2024 |publisher=Tennis Majors|accessdate=22 September 2024}} Afterwards, she reached the final of the Abu Dhabi Open by winning a long semifinal match against Beatriz Haddad Maia, losing the decisive match in straight sets to Elena Rybakina.{{cite web|url=https://www.reuters.com/sports/tennis/rybakina-cruises-past-kasatkina-claim-abu-dhabi-title-2024-02-11/|title=Rybakina cruises past Kasatkina to claim Abu Dhabi title|publisher=Reuters|date=February 11, 2024}}

In June, Kasatkina reached the final of Eastbourne, after defeating Emma Raducanu in straight sets in the quarterfinals, and third seed Jasmine Paolini in the semifinals. She won her seventh title defeating Leylah Fernandez.{{Cite web |date=2024-06-29 |title=Eastbourne International: Daria Kasatkina beats Leylah Fernandez 6-3 6-4 to win seventh WTA title |url=https://www.bbc.com/sport/tennis/articles/c9781n1eppyo |access-date=2024-06-29 |website=BBC Sports}} The next week, she went out of the Wimbledon Championships in the third round losing to Paula Badosa.{{cite web|url=https://www.wtatennis.com/news/4052134/badosa-s-emotional-comeback-seals-her-return-to-wimbledon-s-round-of-16|title=Badosa's emotional comeback seals her return to Wimbledon's Round of 16|publisher=WTA|accessdate=8 July 2024}}

Kasatkina was invited by the International Olympic Committee to participate in the 2024 Summer Olympics as an Individual Neutral Athlete – Russian and Belarusian athletes who have been vetted and are deemed to meet the principles of Olympism that their nations do not – but declined the invitation, along with 12 other potential neutral tennis players.{{cite web|url=https://olympics.com/ioc/paris-2024-individual-neutral-athletes|title=Individual Neutral Athletes at the Olympic Games Paris 2024|website=Olympics|access-date=2 August 2024}}{{Cite web|date=2024-07-02|title=Medvedev among Russians to accept Paris invite|url=https://www.espn.co.uk/olympics/summer/tennis/story/_/id/40478666/daniil-medvedev-russian-athletes-accept-paris-olympics-invite|access-date=2024-08-01|website=ESPN.com}}

In September, she reached the final at the upgraded WTA 500 Korea Open, where she lost to Haddad Maia in three sets.{{cite web|url=https://www.wtatennis.com/news/4126884/haddad-maia-topples-kasatkina-in-seoul-to-win-first-title-of-the-season|title=Haddad Maia topples Kasatkina in Seoul to win first title of the season|publisher=Women's Tennis Association|accessdate=22 September 2024}} After making back to back third round appearances in Beijing and Wuhan, Kasatkina claimed her 8th career title and second of the year in Ningbo defeating compatriot Mirra Andreeva in three sets.{{cite web|date=2024-10-20|title=Kasatkina overcomes Mirra Andreeva in Ningbo to win second title of season|url=https://www.wtatennis.com/news/4152267/kasatkina-overcomes-mirra-andreeva-in-ningbo-to-win-second-title-of-season|publisher=WTA|accessdate=2024-10-20}}

After Jessica Pegula withdrew from the tournament due to a knee injury, Kasatkina was called into the WTA Finals as first alternate for the final round of group matches.{{cite web|url=https://www.wtatennis.com/news/4164031/pegula-withdraws-from-wta-finals-with-injury-kasatkina-in-as-alternate|title=Pegula withdraws from WTA Finals with injury; Kasatkina in as alternate|publisher=Women's Tennis Association|accessdate=6 November 2024}} She lost to Iga Świątek in straight sets.{{cite web|url=https://www.tennisworldusa.org/tennis/news/On_the_WTA_results_with/149622/wta-finals-iga-swiatek-destroys-daria-kasatkina-but-now-needs-coco-gauff-s-help/|title=WTA Finals: Iga Swiatek destroys Daria Kasatkina but now needs Coco Gauff's help|publisher=Tennis World USA|accessdate=7 November 2024}}

At the 2025 Australian Open, Kasatkina advanced to the fourth round in a career-best finish at the tournament, and was defeated by No. 8 seed Emma Navarro. In March, Kasatkina announced that she would start to represent Australia and live in Melbourne.{{Cite web |date=2025-03-28 |title=Daria Kasatkina makes nationality switch to represent Australia after permanent residency application accepted |url=https://tennisuptodate.com/wta/daria-kasatkina-makes-nationality-switch-to-represent-australia-after-permanent-residency-application-accepted |access-date=2025-03-29 |website=Tennisuptodate.com |language=en}} At the Charleston Open, she lost in the third round to Sofia Kenin.{{cite web|url= https://tennisuptodate.com/wta/dash-is-talking-non-stop-daria-kasatkina-reveals-name-of-one-fellow-player-who-is-super-happy-to-see-her-change-nationalities|title= "Dash is talking non-stop": Daria Kasatkina reveals name of one fellow player who is 'super happy' to see her change nationalities|date=4 April 2025}}

At the time of the nationality change, she was the Russian player n.1; subsequently, she became the new Australian player n.1.

Having won the Junior Fed Cup in 2013,{{Cite web|title=Russia crowned 2013 Junior Fed Cup champions|url=https://www.itftennis.com/en/news-and-media/articles/russia-crowned-2013-junior-fed-cup-champions/|url-status=live|access-date=2022-01-06|website=International Tennis Federation|archive-url=https://web.archive.org/web/20210118081732/https://www.itftennis.com/en/news-and-media/articles/russia-crowned-2013-junior-fed-cup-champions/ |archive-date=18 January 2021}} Kasatkina made her senior Fed Cup debut for Russia in 2016 in a World Group quarterfinal against the Netherlands. She won the dead rubber doubles match with Ekaterina Makarova against Cindy Burger and Arantxa Rus as Russia lost the tie.{{cite web|title=It was the "miracle in Moscow", says Haarhuis|url=https://www.fedcup.com/en/news/223764.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220438/https://www.fedcup.com/en/news/223764.aspx |url-status=live}} She also participated in the World Group play-offs against Belarus two months later and played three rubbers, as Makarova and Svetlana Kuznetsova both opted to skip the tie. Kasatkina won her first live rubber against Aliaksandra Sasnovich, but Russia lost all three other singles rubbers to lose the tie. Partnering with Elena Vesnina, she also won the doubles dead rubber. Nonetheless, Russia were relegated out of the World Group.{{cite web|title=Mixed fortunes for Russia and Belarus|url=https://www.fedcup.com/en/news/228288.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220254/https://www.fedcup.com/en/news/228288.aspx |url-status=live}}

In 2017, Russia played in World Group II and won their tie to advance to World Group play-offs. After Kasatkina skipped that tie, she returned for the Play-off round.{{cite web|title=Russia downs Chinese Taipei to reach World Group play-offs|url=https://www.fedcup.com/en/news/253495.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224220452/https://www.fedcup.com/en/news/253495.aspx |url-status=live}} However, for the second consecutive year, Russia lost in this round to Belgium to keep them in World Group II. Kasatkina won her only singles match to set up a decisive doubles rubber. Alongside Vesnina, Kasatkina lost that match to Elise Mertens and An-Sophie Mestach.{{cite web|title=Brilliant Belgians triumph in Moscow|url=https://www.fedcup.com/en/news/258263.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225032215/https://www.fedcup.com/en/news/258263.aspx |url-status=live}} Kasatkina did not participate in Fed Cup in 2018 as Russia were further relegated to the Europe/Africa zonal group.{{cite web|title=Joyous Slovakia revel in maiden 3-1 win over Russia|url=https://www.fedcup.com/en/news/280632.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224222025/https://www.fedcup.com/en/news/280632.aspx |url-status=live}}{{cite web|title=Ostapenko and Sevastova guide Latvia into World Group II|url=https://www.fedcup.com/en/news/283712.aspx|website=Fed Cup |access-date=24 December 2018 |archive-date=28 June 2018 |archive-url=https://web.archive.org/web/20180628124812/https://www.fedcup.com/en/news/283712.aspx |url-status=live}}

Kasatkina competed for Russia in 2019 during the zonal competitions, recording a win over Karen Barritza in straight sets in the only match she played throughout the week. Russia ultimately secured a place in the World Group II play-offs.{{Cite web|url=https://www.fedcup.com/en/news/301665.aspx|title=Fed Cup – Russia seal World Group II play-off spot|website=www.fedcup.com|access-date=2019-03-22|archive-date=22 March 2019|archive-url=https://web.archive.org/web/20190322105842/https://www.fedcup.com/en/news/301665.aspx|url-status=live}}

She made her return to the team for the 2020–21 Billie Jean King Cup Finals, where she was nominated for the team as the second-ranked Russian.{{Cite web|title=Billie Jean King Cup- Group A Preview: France, Canada, RTF|url=https://www.billiejeankingcup.com/en/news/321620.aspx|access-date=2021-12-15|website=www.billiejeankingcup.com}} In the matches she was nominated for, Kasatkina beat Carol Zhao in straight sets for an overall 3–0 win in the group stage.{{Cite web|title=Daria Kasatkina: I knew I'd be nervous but I was able to fight with my nerves|url=https://www.tennisworldusa.org/tennis/news/Tennis_Interviews/104475/daria-kasatkina-i-knew-i-d-be-nervous-but-i-was-able-to-fight-with-my-nerves/|access-date=2021-12-15|website=Tennis World USA|date=2 November 2021 }} She then beat Jil Teichmann in the final, helping Russia to secure their first title since 2008.{{Cite web|title=Russians prevail over Swiss to win fifth Billie Jean King Cup championship|url=https://www.wtatennis.com/news/2341179/russians-prevail-over-swiss-to-win-5th-billie-jean-king-cup-championship|access-date=2021-12-15|publisher=Women's Tennis Association}}

In March 2025, Kasatkina announced that she would represent Australia at all tennis events in the future after being granted permanent residency.{{cite web|url=https://www.theguardian.com/sport/2025/mar/29/tennis-daria-kasatkina-australia-russia-allegiance|title=From Russia with love: Daria Kasatkina switches tennis allegiance to Australia|publisher=The Guardian|accessdate=29 March 2025}}{{cite web|url=https://www.bbc.co.uk/sport/tennis/articles/cr727l3jp30o|title=Kasatkina to represent Australia instead of Russia|publisher=BBC Sport|accessdate=29 March 2025}}

File:Daria Kasatkina (51314141219).jpg

Kasatkina is a baseline player with a crafty style of play.{{cite web|title=Daria Kasatkina Bio|url=https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#bio|website=WTA Tennis |access-date=24 December 2018 |archive-date=24 December 2018 |archive-url=https://web.archive.org/web/20181224073737/https://www.wtatennis.com/players/player/322082/title/daria-kasatkina-0#bio |url-status=live}}{{cite web|title=Crafty Kasatkina Leads Youth Charge into Women's Final|url=https://bnpparibasopen.com/news/crafty-kasatkina-leads-youth-charge-into-womens-final/|website=BNP Paribas Open|date=17 March 2018 |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225032016/https://bnpparibasopen.com/news/crafty-kasatkina-leads-youth-charge-into-womens-final/ |url-status=live}} She employs a variety of shots including heavy topspin forehands, one-handed slice backhands, kick serves, drop shots, and tweeners.{{refn|group=note|Kasatkina holds the Guinness World Record for "most successful tennis tweener shots hit in one minute" (18, set in 2019).{{cite web|url=https://www.guinnessworldrecords.com/world-records/560870-most-successful-tennis-tweener-shots-hit-in-one-minute|title=Most successful tennis tweener shots hit in one minute|work=Guinness World Records|date=18 March 2019|access-date=12 June 2023}}}} Tennis journalist Steve Tignor compared her ability to naturally hit one-handed backhands despite typically utilizing a two-handed shot similar to that of former world No. 1 men's tennis player Andy Murray. Her former coach Phillip Dehaes described her style as "change of rhythm, change of speed, change of trajectory." She relies on outsmarting her opponents through tactics rather than hitting overpowering shots.{{cite web|title=Daria Kasatkina Daring to be Different in Age of Power|url=https://www.news18.com/news/sports/daria-kasatkina-daring-to-be-different-in-age-of-power-1792653.html|website=News18|date=27 June 2018 |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225030829/https://www.news18.com/news/sports/daria-kasatkina-daring-to-be-different-in-age-of-power-1792653.html |url-status=live}}{{cite web|title=Kasatkina grounds Wozniacki again to reach Indian Wells QF|url=https://www.wtatennis.com/news/kasatkina-grounds-wozniacki-again-reach-indian-wells-qf|website=WTA Tennis |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225175100/https://www.wtatennis.com/news/kasatkina-grounds-wozniacki-again-reach-indian-wells-qf |url-status=live}} However, she is capable of hitting powerful groundstrokes as well. Dehaes said that her key is to avoid hitting the ball into her opponent's strike zone.{{cite news|title=Daria Kasatkina Is Building Up to a Tennis Masterpiece|url=https://www.nytimes.com/2018/03/14/sports/tennis/indian-wells-daria-kasatkina.html|website=New York Times|date=15 March 2018 |access-date=24 December 2018|last1=Clarey|first1=Christopher |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225082344/https://www.nytimes.com/2018/03/14/sports/tennis/indian-wells-daria-kasatkina.html |url-status=live}} Kasatkina's style has been praised by others including women's tennis coach Wim Fissette, who called her "the Roger Federer of women's tennis".{{cite news|title='Daria Kasatkina is the Roger Federer of WTA' – Angelique Kerber's coach|url=https://www.tennisworldusa.org/tennis/news/Roger_Federer/57608/-daria-kasatkina-is-the-roger-federer-of-wta--angelique-kerber-s-coach/|website=Tennis World USA |access-date=10 January 2019 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225030749/https://www.tennisworldusa.org/tennis/news/Roger_Federer/57608/-daria-kasatkina-is-the-roger-federer-of-wta--angelique-kerber-s-coach/ |url-status=live}}

Kasatkina's favourite surface is clay.{{cite web|title=Kasatkina proves she's a fighter in semifinal win over Venus|url=http://www.tennis.com/pro-game/2018/03/kasatkina-proves-shes-fighter-semifinal-win-over-venus/72777/|website=Tennis.com |access-date=24 December 2018 |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225030827/http://www.tennis.com/pro-game/2018/03/kasatkina-proves-shes-fighter-semifinal-win-over-venus/72777/ |url-status=live}} Fellow top women's player Caroline Wozniacki has commended her clay court ability, saying, "The slower the surface is, the better for her. She has very good hands and good angles and everything."{{cite news|title=Tennis: French Open run leaves Kasatkina homeless|url=https://www.reuters.com/article/us-tennis-frenchopen-kasatkina-quotes/tennis-french-open-run-leaves-kasatkina-homeless-idUSKCN1J028U|website=Reuters|date=4 June 2018 |access-date=24 December 2018|last1=Herman|first1=Martyn |archive-date=25 December 2018 |archive-url=https://web.archive.org/web/20181225080843/https://www.reuters.com/article/us-tennis-frenchopen-kasatkina-quotes/tennis-french-open-run-leaves-kasatkina-homeless-idUSKCN1J028U |url-status=live}} As such, she also excels at tournaments with slower hard courts, such as the Indian Wells Open. Kasatkina has had a good record on all three main surfaces on the WTA Tour, winning a clay court title at the Charleston Open, winning a hard court title at the Kremlin Cup, and reaching the quarterfinals on grass at Wimbledon.{{Cite web |last=Tennis.com |title=The Baseline Player of the Week: Daria Kasatkina |url=https://www.tennis.com/baseline/articles/the-baseline-player-of-the-week-daria-kasatkina |access-date=2023-09-24 |website=Tennis.com |language=en}}

When Kasatkina was eleven years old, Maxim Prasolov began coaching her. At the age of 14, she switched coaches to Damir Rishatovich Nurgaliev.{{cite web|url=http://www.championat.com/tennis/article-247082-cifrologija-i-citaty-o-tennisistke-dare-kasatkinoj.html|title=Дарья Касаткина — девчонка с характером|trans-title=Daria Kasatkina – Girl with Character|publisher=Championat.com|last1=Filippova|first1=Anastasia|language=ru|date=7 May 2016|access-date=8 May 2016|archive-date=12 May 2016|archive-url=https://web.archive.org/web/20160512000636/http://www.championat.com/tennis/article-247082-cifrologija-i-citaty-o-tennisistke-dare-kasatkinoj.html|url-status=live}} Beginning in 2015, she moved to Trnava in Slovakia to train at the Empire Tennis Academy, citing her preference to train away from a large city, something that was less feasible in Russia. At the academy, she worked with former Slovak professional tennis player Vladimír Pláteník.

After three years, she hired Belgian Philippe Dehaes to be her new coach in late 2017. Kasatkina had previously sought out Dehaes as a coach in late 2013 when she visited Belgium in search of funding from a foundation that was providing financial support for one of Dehaes's junior players. Dehaes has stated he has a different coaching style than Pláteník, saying, "She was working before with a coach who was really focused on the opponent and on adapting the game to the opponent. I don't watch the opponent." He added that, "I insist on leaving her a lot of freedom when she plays, but she has to create, has to make things happen, really like an artist. I compared it to an empty canvas a few days ago, and I said she can make whatever art on that canvas that she wants as long as it's beautiful." Kasatkina split with Dehaes in February 2019. She had only wanted to take a break from having a coach, but Dehaes could not accommodate being without a job. After two months without a coach, she replaced him with Carlos Martinez, former coach of fellow Russian Svetlana Kuznetsova. Kasatkina's brother Alexandr is her fitness trainer. Kasatkina and Martinez's relationship ended in February 2023, and former player Flavio Cipolla began coaching her.{{cite news|url=https://www.tennis.com/baseline/articles/daria-kasatkina-reveals-coaching-switch-in-couples-vlog-with-natalia-zabiiako|title=Daria Kasatkina reveals coaching switch in couples vlog with Natalia Zabiiako|last=Kane|first=David|work=Tennis.com|date=18 February 2023|access-date=18 March 2023}}

Kasatkina's tennis idol is Rafael Nadal. In the women's game, she is a fan of Petra Kvitová and Maria Sharapova. She prefers to watch men's tennis over women's, saying that the players are better at serving and moving around the court. Kasatkina likes to play sports in general, including football. She is a fan of FC Barcelona.

Kasatkina has been sponsored by Nike,{{Cite web|url=https://www.scoreandchange.com/tennis-sponsorships-women-singles/|title=Tennis Sponsorships Women (Singles)|access-date=26 July 2019|archive-date=17 July 2019|archive-url=https://web.archive.org/web/20190717015923/https://www.scoreandchange.com/tennis-sponsorships-women-singles/|url-status=live}}{{Cite web|url=https://www.financemagnates.com/institutional-forex/instaforex-partners-tennis-star-daria-kasatkina/|title=InstaForex Partners with Tennis Star Daria Kasatkina | Finance Magnates|date=22 August 2017|access-date = 26 July 2019|archive-date = 17 July 2019|archive-url = https://web.archive.org/web/20190717015928/https://www.financemagnates.com/institutional-forex/instaforex-partners-tennis-star-daria-kasatkina/|url-status = live}} Tecnifibre and Instaforex{{Cite web|url=https://www.instaforex.com/daria_kasatkina|title=Daria Kasatkina ─ Tennis rising star, InstaForex star|website=www.instaforex.com|access-date=26 July 2019|archive-date=17 July 2019|archive-url=https://web.archive.org/web/20190717015922/https://www.instaforex.com/daria_kasatkina|url-status=live}} throughout her career. Her sponsorship with Nike ended in 2021, due to a series of poor results. In August 2021, Kasatkina signed an endorsement deal with Adidas for clothing, footwear, and apparel.{{Cite web|title=Latest tennis dresses and shoes at the 2021 US Open|url=https://www.wtatennis.com/news/2246892/latest-tennis-dresses-and-shoes-at-the-2021-us-open|access-date=2021-12-15|publisher=Women's Tennis Association}} She switched to Decathlon's Artengo racquets in 2022 after trying different racquets in a blind test.{{Cite web |title=DECATHLON {{!}} ARTENGO X DARIA KASATKINA |url=https://www.artengo.com/decathlon-artengo-x-daria-kasatkina |access-date= |website=www.artengo.com }}{{Cite web |last=Fairbairn |first=Tony |date=2022-05-18 |title=Daria Kasatkina Praises New Racket After Discovering Form Ahead Of Roland Garros |url=https://www.ubitennis.net/2022/05/daria-kasatkina-praises-new-racket-after-discovering-form-ahead-of-roland-garros/ |access-date= |website=UBITENNIS }}

In an interview with Sofya Tartakova in 2021, Kasatkina made comments that were presumed to be discussing her bisexuality.{{cite web|url=https://www.youtube.com/watch?v=ToBjuF7HRiY&feature=emb_title|title=Daria Kasatkina: Interview|work=YouTube|date=20 April 2021|access-date=21 April 2021|archive-date=21 April 2021|archive-url=https://web.archive.org/web/20210421103621/https://www.youtube.com/watch?v=ToBjuF7HRiY&feature=emb_title|url-status=live}} In 2022, she clarified these comments, coming out as lesbian, and stating in an interview that she is in a relationship with figure skater Natalia Zabiiako. It became public after Kasatkina and Zabiiako posted photos of each other together on Instagram.{{cite web|author=Harding, Luke|url=https://www.theguardian.com/sport/2022/jul/18/daria-kasatkina-russian-tennis-player-comes-out-as-gay|title=Daria Kasatkina comes out as gay and speaks out against Russian attitudes|website=TheGuardian.com |date=18 July 2022}}{{cite web|url=https://www.watson.ch/sport/tennis/163593532-die-russische-tennisspielerin-darja-kassatkina-outet-sich-als-lesbisch|title="Es ist schwierig in Russland" – Tennis-Star Kassatkina liebt eine Frau|language= de|date=19 July 2022}}{{cite web |url=https://www.wtatennis.com/news/2716099/daria-kasatkina-feeling-more-free-and-happy-after-coming-out |title=Daria Kasatkina feeling 'more free and happy' after coming out |website=WTA Tennis |date=4 August 2022 }} Zabiiako and Kasatkina also started a YouTube vlog about life on the tennis tour.{{cite news|url=https://www.tennis.com/baseline/articles/daria-kasatkina-natalia-zabiiako-pull-back-the-curtain-on-indian-wells-in-latest|title=Daria Kasatkina, Natalia Zabiiako pull back the curtain on Indian Wells in latest vlog|date=13 March 2023|website=Tennis.com|access-date=12 June 2023}}

Kasatkina said that she "found living in the closet impossible" and also speaking out against the attitudes towards the LGBTQ+ community and restrictions of rights within Russia. In that same interview, Kasatkina condemned the Russian invasion of Ukraine, calling for an end to Russian aggression and showing solidarity with the Ukrainian people. As a result of her sexuality, Kasatkina is unsure of what will happen to her if she ever chooses to return to Russia to see her friends and family, but she has stated that she doesn't regret her decision.{{Cite web |last=Spits |first=Scott |date=2023-01-16 |title='One of the best decisions of the last year': Daria Kasatkina's relief at coming out |url=https://www.theage.com.au/sport/tennis/one-of-the-best-decisions-of-the-last-year-daria-kasatkina-s-relief-at-coming-out-20230116-p5ccwh.html |access-date=2023-01-16 |website=The Age }} In June 2023, she expressed her understanding for Ukrainian players who refused to shake her hand after matches, saying "It’s a very sad situation and I understand."{{cite news |title=Ukrainian tennis player praises Russian competitor over comments on war |url=https://thehill.com/homenews/4034116-ukrainian-tennis-player-praises-russian-competitor-over-comments-on-war/ |work=The Hill |date=4 June 2023}}

{{main|Daria Kasatkina career statistics}}

{{Performance key|short=yes}}

Note: ¹Kasatkina and Anett Kontaveit withdrew from the 2019 US Open before their second-round match, which does not officially count as a loss.

• The Russian Cup in the nominations:
• Team of the Year – Girls Under-14: 2011;
• Team of the Year – Girls Under-16: 2012, 2013;
• Junior of the Year: 2014;
• Team of the Year: 2021.{{cite web|title=2011|url=http://www.ruscup.ru/cups/2011/|website=ruscup.ru|publisher=Russian Cup |access-date=1 January 2022}}
• {{cite web|title=2012|url=http://www.ruscup.ru/cups/2012/|website=ruscup.ru|publisher=Russian Cup |access-date=1 January 2022}}
• {{cite web|title=2013|url=http://www.ruscup.ru/cups/2013/|website=ruscup.ru|publisher=Russian Cup |access-date=1 January 2022}}
• {{cite web|title=2014|url=http://www.ruscup.ru/cups/2014/|website=ruscup.ru|publisher=Russian Cup |access-date=1 January 2022}}
• {{cite web|title=2021|url=http://www.ruscup.ru/cups/2021/|website=ruscup.ru|publisher=Russian Cup |access-date=1 January 2022}}

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Category:1997 births

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