Alistair Overeem

Overeem was born in Hounslow, London, England, to a Jamaican father and a Dutch mother, whose maternal great-grandmother was an illegitimate child of King William III of the Netherlands.{{Cite web|title=Five Facts You Need to Know About Alistair Overeem|url=https://www.essentiallysports.com/ufc-mma-news-five-facts-you-need-to-know-about-alistair-overeem/|author=Singh, Abhilasha|work=Essentially Sports|date=2 June 2021|access-date=28 November 2021}}{{Cite web|url=http://www.sherdog.com/news/news/Overeems-Royal-Lineage-Uncovered-31499|title=Overeem's Royal Lineage Uncovered|website=Sherdog|access-date=5 May 2018}} When he was six years old, his parents divorced and he moved with his mother and older brother to the Netherlands, where he grew up in the city of Amersfoort.{{Cite web|title= "Geboren om mezelf vrij te vechten" |url= https://deanderekrant.nl/nieuws/geboren-om-mezelf-vrij-te-vechten-2023-11-24#|author=Van Wallinga, Danielle|work=De Andere Krant|date=24 November 2023|language=Dutch}} As a child, Overeem started training martial arts with his older brother Valentijn in order to defend himself from bullying. He decided to pursue a competitive sports career by his brother's example, first in judo and later track and field and basketball.{{Cite web|url=https://childhoodbiography.com/alistair-overeem-childhood-biography-story-facts/|title=Alistair Overeem Childhood Story plus untold biography facts|last=Davey|first=Jon|website=Childhood Biography|date=22 January 2021|access-date=July 29, 2021|archive-date=27 July 2021|archive-url=https://web.archive.org/web/20210727055029/https://childhoodbiography.com/alistair-overeem-childhood-biography-story-facts/|url-status=dead}} At the age of 15, he followed Valentijn into Chris Dolman's Martial Arts gym to become a professional fighter.{{cite news|url=http://bleacherreport.com/articles/1049921-alistair-overeem-the-new-biggest-and-baddest-man-on-the-planet|title=UFC: Why Alistair Overeem Is the New Biggest and Baddest Man on the Planet|work=Bleacher Report|date=12 February 2012 |access-date=7 July 2016 }} Alistair initially did not like the sport, as he was routinely beaten by more experienced students, but he changed his mind when he met Bas Rutten and Joop Kasteel, after which he fully dedicated himself to training.

Overeem had his first MMA professional fight at 19 years old, defeating Ricardo Fyeet by submission on {{Start date|df=yes|1999|10|24}} at It's Showtime, the first event of the eponymously named promotion.

After posting a 10–3 record in Fighting Network Rings, M-1, It's Showtime, and 2 Hot 2 Handle, Overeem debuted in the Pride Fighting Championships on 20 July 2002, defeating Yusuke Imamura by TKO in 44 seconds.

Overeem won two more fights in Pride before entering the 2003 Pride Middleweight Grand Prix at Pride Total Elimination 2003 and losing to future UFC Light heavyweight Champion Chuck Liddell in the quarterfinal match. Overeem rebounded to defeat Tomohiko Hashimoto at the Inoki Bom-Ba-Ye 2003 in 36 seconds. On 31 October 2004, Overeem fought Hiromitsu Kanehara, defeating him by TKO in the second round at Pride 28. Overeem lost his next fight against Brazilian Top Team fighter Antônio Rogério Nogueira.

In 2005, Overeem entered the Pride Middleweight Grand Prix at Pride Total Elimination 2005, in which he defeated UFC Light heavyweight Champion Vitor Belfort by submission in the opening round. Overeem moved on to fight Igor Vovchanchyn in the quarterfinals at Pride Critical Countdown 2005 and won via submission in under two minutes. Overeem lost in the semifinals to the eventual champion Maurício Rua.

In February 2006, Overeem fought Russian Top Team favourite Sergei Kharitonov. Overeem won, dislocating Kharitonov's shoulder in the process. With his win over Kharitonov, Overeem secured a spot in the Pride 2006 Openweight Grand Prix at Pride Total Elimination Absolute. He fought Brazilian jiu-jitsu specialist Fabrício Werdum, and lost via kimura in the second round.

On 9 June 2006, Overeem travelled to San Jose, California, to win a rematch with Vitor Belfort by decision at Strikeforce: Revenge.

A month later Overeem returned to Pride for a highly anticipated rematch with Antônio Rogério Nogueira. Overeem entered the fight with a heavily taped neck. After controlling the first round and a half with his striking, Overeem was stumbled from a punch, and Nogueira followed with a flurry of strikes. Worried Overeem would be more severely injured, his corner threw in the towel.

At Pride Final Conflict Absolute, Overeem lost to Ricardo Arona. Overeem was on the receiving end of a leg kick that caused a non-serious injury to his nerves, causing him to lose feeling in his foot and leg. Unable to mount much offence or defend against Arona, Overeem tapped out to avoid further injury.

He then suffered another KO loss to Maurício Rua at Pride 33, but returned in June 2007 with a submission win over Michael Knaap at K-1 Grand Prix in Amsterdam (despite K-1 being a kickboxing promotion, the bout was fought under MMA rules).

On 17 September 2007, at the Hero's 10: Middleweight Tournament Final, Alistair faced Sergei Kharitonov again. Overeem showed solid movement as soon as the first round began, but he suffered a KO loss just before the end of the first round.

On 16 November 2007, Overeem defeated Paul Buentello for the vacant Strikeforce Heavyweight Championship by submission due to knee strikes.{{cite web |url= http://mmaweekly.com/strikeforce-results-santiago-tourney-champ-2 |title=Strikeforce Results, Santiago Tourney Champ |date=16 November 2007 |publisher=MMAWeekly.com |access-date=24 July 2011}}

On 15 June 2008 Overeem won by KO in the first round against Lee Tae-Hyun at DREAM 4. On 21 July 2008, Overeem defeated K-1 World Grand Prix Champion Mark Hunt in the first round by submission at Dream 5: Lightweight Grand Prix 2008 Final Round.

His next fight was against Mirko Cro Cop at Dream 6 on 23 September 2008.[http://dreamofficial.com/fightcard/dream6/ DREAM.6 official card]. Dreamofficial.com. Retrieved on 23 October 2011. The bout was stopped about halfway through the first round and declared a no-contest, after Overeem landed multiple knees to the groin of Cro Cop.

Overeem was rumoured to be making his first title defence against Brett Rogers on 6 June at Strikeforce: Lawler vs. Shields. However, a hand injury scuttled plans for the fight.{{cite web |url= http://mmaweekly.com/overeem-suffers-hand-injury-summer-return-possible |title=Overeem Suffers Hand Injury, Summer Return Possible |date=19 May 2009 |publisher=MMAWeekly.com |access-date=24 July 2011}} According to Golden Glory manager Bas Boon, Overeem had suffered a hand infection following a nightclub brawl early May 2009. According to Boon, Alistair and his brother Valentijn, both heavyweights had been involved in an altercation that left five security staff needing hospital treatment and nearly cost Alistair his hand.

Overeem was scheduled to make his first Strikeforce Heavyweight Championship defence in a rematch against Fabrício Werdum at Strikeforce: Carano vs. Cyborg, but had to pull out due to a hand injury, most likely caused from his nightclub brawl.

Alistair defeated Tony Sylvester at Golden Glory's 10-year anniversary celebration with a standing guillotine choke.Steven Marrocco [https://web.archive.org/web/20100424050125/http://www.mmaweekly.com/absolutenm/templates/dailynews.asp?articleid=9713&zoneid=13 OVEREEM FACES TUF 1 ALUM HOGER AT GLORY 11]. MMAWeekly.com. 6 October 2009 He used the same choke only eight days later to submit James Thompson at Dream 12.{{cite news|url=http://mmajunkie.com/news/16616/alistair-Overeem-bellator-champ-eddie-alvarez-among-dream-12-winners.mma|title=Alistair Overeem, Bellator champ Eddie Alvarez among DREAM.12 winners|publisher=mmajunkie.com|access-date=23 October 2009|archive-url=https://web.archive.org/web/20091028003415/http://mmajunkie.com/news/16616/alistair-overeem-bellator-champ-eddie-alvarez-among-dream-12-winners.mma|archive-date=28 October 2009|url-status=dead}}

Overeem was set to face Andrei Arlovski at Dynamite!! 2009, but FEG instead opted to have him face Kazuyuki Fujita to keep with the DREAM vs. Sengoku theme.Raven, Boxing. (18 December 2009) [http://www.headkicklegend.com/2009/12/17/1206763/arlovski-camp-planned-to-face Arlovski Camp Planned to Face Overeem at Dynamite]. Head Kick Legend. Retrieved on 23 October 2011. Overeem quickly overpowered his opponent and recorded a knockout with a knee to the head.

Overeem next faced Brett Rogers on 15 May 2010 at Strikeforce: Heavy Artillery to defend his Strikeforce Heavyweight Championship.{{cite news|url=http://mmajunkie.com/news/18492/alistair-overeems-strikeforce-title-on-the-line-may-15-against-brett-rogers.mma |title=Alistair Overeem's Strikeforce title on the line May 15 against Brett Rogers |url-status=dead |archive-url=https://archive.today/20120525140350/http://mmajunkie.com/news/18492/alistair-overeems-strikeforce-title-on-the-line-may-15-against-brett-rogers.mma |archive-date=25 May 2012 }} He won the fight via TKO in the first round. In his post-fight interview, Overeem declared for another time that he wants to fight Fedor Emelianenko, claiming that Fedor's management can no longer ignore his presence.{{cite news|url=http://www.lowkick.com/Strikeforce/Alistair-Overeem-destroys-Brett-Rogers-to-retain-the-Strikeforce-Heavyweight-Title-7741|title=Alistair Overeem destroys Brett Rogers to retain the Strikeforce Heavyweight Title; Calls out Fedor Emelianenko again|publisher=LowKick.com|access-date=16 May 2010|archive-url=https://web.archive.org/web/20100517152814/http://www.lowkick.com/Strikeforce/Alistair-Overeem-destroys-Brett-Rogers-to-retain-the-Strikeforce-Heavyweight-Title-7741|archive-date=17 May 2010|url-status=dead|df=dmy-all}} The majority of Alistair Overeem's pre-fight training camp took place at the newly opened Golden Glory Gym in Pattaya, Thailand, where "The Demolition Man" concentrated on the further improvement of his Muay Thai skills.{{cite news|url=http://www.lowkick.com/Strikeforce/Alistair-Overeem-Fedor-is-the-one-to-beat-and-I-am-the-chosen-one-to-do-it-7686|title=Alistair Overeem: Fedor is the one to beat, and I am the chosen one who can do it|publisher=LowKick.com|access-date=13 May 2010|archive-url=https://web.archive.org/web/20100515072545/http://www.lowkick.com/Strikeforce/Alistair-Overeem-Fedor-is-the-one-to-beat-and-I-am-the-chosen-one-to-do-it-7686|archive-date=15 May 2010|url-status=dead|df=dmy-all}}

Overeem faced Todd Duffee on 31 December 2010 at Dynamite!! 2010.{{cite web|url=http://mmajunkie.com/news/21838/alistair-overeem-vs-todd-duffee-expected-for-dream-dynamite-2010.mma|title=Alistair Overeem vs. Todd Duffee expected for Dream "Dynamite!! 2010"|publisher=mmajunkie.com|date=23 December 2010|url-status=dead|archive-url=https://web.archive.org/web/20101226153545/http://mmajunkie.com/news/21838/alistair-overeem-vs-todd-duffee-expected-for-dream-dynamite-2010.mma|archive-date=26 December 2010}} He defeated Duffee by way of knockout 19 seconds into the first round to win the interim DREAM Heavyweight Championship.[http://www.sherdog.com/news/news/K-1-Dynamite-Results-amp-Live-Play-by-Play-29004 K-1 ‘Dynamite!’ Live Results & Play-by-Play]. Sherdog.com. Retrieved on 23 October 2011.

In early 2011, Overeem was named as one of eight men that will take part of the Strikeforce Heavyweight Grand Prix, alongside Fabrício Werdum, Sergei Kharitonov, Brett Rogers, Josh Barnett, Andrei Arlovski, Antônio Silva and Fedor Emelianenko.

A rematch with Fabrício Werdum took place on 18 June 2011, at Strikeforce: Dallas as part of an eight-man heavyweight tournament.{{cite web|url=http://mmajunkie.com/news/22667/strikeforce-officially-announces-aprils-diaz-vs-daley-grand-prix-event-for-june.mma |title=Strikeforce officially announces April's "Diaz vs. Daley," grand prix event for June |publisher=mmajunkie.com |date=2 March 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110305000812/http://mmajunkie.com/news/22667/strikeforce-officially-announces-aprils-diaz-vs-daley-grand-prix-event-for-june.mma |archive-date=5 March 2011 }} Overeem defeated Werdum by unanimous decision (30–27, 30–27, and 29–28).{{cite web|url=http://www.mmamania.com/2011/6/19/2231458/strikeforce-results-recap-from-last-night-for-overeem-vs-werdum-on|title=Strikeforce results recap from last night for 'Overeem vs Werdum' on June 18|author=Thomas Myers|work=MMA Mania|date=19 June 2011}}

On 17 July, it was announced that Overeem was removed from the promotion's 2011 Heavyweight Grand Prix. Overeem went on to state that he felt the September date was too soon for him to return, and that he needed time to rest and heal after his 18 June quarterfinal decision win over Fabrício Werdum. Overeem was swapped out for unbeaten up-and-comer Daniel Cormier.[http://www.sherdog.com/news/news/Overeem-Pulled-from-Strikeforce-Heavyweight-GP-34054 Overeem Pulled from Strikeforce Heavyweight GP]. Sherdog.com. Retrieved on 23 October 2011. Subsequently, on 29 July, it was announced that Overeem had been released from the Strikeforce organization as Zuffa exercised their right to eliminate the one remaining fight on his contract.{{cite web|url=http://mmajunkie.com/news/24621/strikeforce-reportedly-releases-heavyweight-champ-alistair-overeem.mma|title=Strikeforce reportedly releases heavyweight champ Alistair Overeem|publisher=mmajunkie.com|date=29 July 2011|url-status=dead|archive-url=https://web.archive.org/web/20110815063500/http://mmajunkie.com/news/24621/strikeforce-reportedly-releases-heavyweight-champ-alistair-overeem.mma|archive-date=15 August 2011}}{{cite web |url=http://mmaweekly.com/strikeforce-releases-heavyweight-champion-alistair-overeem |title=Strikeforce Releases Heavyweight Champion Alistair Overeem |publisher=MMAweekly.com |date=29 July 2011}} It was revealed that the reason behind Overeem's release from Strikeforce was not due to his unwillingness to participate in the Grand Prix semi-finals, but due to Golden Glory's policy requiring that the money fighters made through fights be paid through their management first.

This disagreement led not only to Overeem's release but also other Golden Glory stars under a Zuffa contract, including former Strikeforce Women's Bantamweight Champion Marloes Coenen, Norwegian UFC Heavyweight Jon Olav Einemo, and even brother Valentijn Overeem. Team Golden Glory leader Bas Boon stated he has since changed the policy, and that Alistair Overeem could come to the UFC under an exclusive deal if the right terms are offered, which he later received.{{cite web |url=http://mmaweekly.com/team-golden-glory-willing-to-work-with-zuffa-says-overeem-could-even-be-exclusive-to-ufc |title=Team Golden Glory Willing to Work with Zuffa; Says Overeem Could Even Be Exclusive to UFC |publisher=MMAweekly.com |date=11 August 2011}}

After much speculation, on 6 September 2011 it was announced that Overeem had signed a contract with the UFC, and that his first fight would be against former UFC Heavyweight Champion Brock Lesnar on 30 December 2011 at UFC 141.{{cite web |url=http://latimesblogs.latimes.com/sports_blog/2011/09/brock-lesnar-vs-alistair-overeem-ufc.html |title=UFC: Brock Lesnar vs. Alistair Overeem set for Dec. 30 |work=Los Angeles Times |date=6 September 2011}}{{cite web |url=http://mmaweekly.com/brock-lesnar-faces-alistair-overeem-on-dec-30-in-las-vegas |title=Brock Lesnar Faces Alistair Overeem on Dec 30 in Las Vegas. This fight would be the first live main event on cable (Fox). |publisher=MMAWeekly.com |date=6 September 2011}}

The lead up to the fight was rife with controversy. In November 2011, both competitors were required by the NSAC to comply with out-of-competition drug testing. Lesnar delivered his sample screen on 21 November, while Overeem delivered his on 23 November. The screen, however, did not meet the standards of the commission. Overeem submitted a second test through his personal physician, which was also deemed unacceptable before flying out of the country. Overeem was ultimately given a conditional license for the fight by the committee during a meeting held on 12 December 2011.{{cite web |url=http://www.mmajunkie.com/news/2011/12/alistair-overeem-granted-conditional-license-for-ufc-141-facing-four-drug-tests|title=Alistair Overeem granted conditional license for UFC 141, facing four drug tests|publisher=MMAjunkie.com|date=12 December 2011|access-date=12 December 2011|author=}}

On 30 December 2011, at UFC 141, Overeem made his UFC debut in the main event against Brock Lesnar. Overeem hurt Lesnar multiple times early on with knees to the body, and went on to finish the fight with a kick to the liver and subsequent punches at 2:26 of the first round. The victory earned him a heavyweight title shot against champion Junior dos Santos.

Overeem was scheduled to fight UFC Heavyweight Champion Junior dos Santos on 26 May 2012 at UFC 146. However, on 4 April 2012, Overeem was revealed to have failed his pre-fight drug test by the Nevada State Athletic Commission (NSAC).{{cite news|url=http://mmajunkie.com/news/28109/alistair-overeem-fails-pre-fight-drug-test-likely-out-of-ufc-146-title-fight.mma|title=Alistair Overeem fails pre-fight drug test, likely out of UFC 146 title fight|publisher=mmajunkie.com|access-date=5 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120404213449/http://mmajunkie.com/news/28109/alistair-overeem-fails-pre-fight-drug-test-likely-out-of-ufc-146-title-fight.mma|archive-date=4 April 2012}} Overeem had a 14-to-1 testosterone-to-epitestosterone (T/E) ratio, over the allowed ratio rate of 6-to-1. On Friday 20 April 2012 UFC President Dana White confirmed that Overeem had been removed from his fight with dos Santos and replaced by Frank Mir.{{cite web|url=http://mmajunkie.com/news/28352/alistair-overeem-out-frank-mir-in-against-junior-dos-santos-at-ufc-146.mma|title=Alistair Overeem out, Frank Mir in against Junior Dos Santos at UFC 146|work=mmajunkie.com|date=20 April 2012|access-date=20 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120423161508/http://mmajunkie.com/news/28352/alistair-overeem-out-frank-mir-in-against-junior-dos-santos-at-ufc-146.mma|archive-date=23 April 2012}}{{cite web|url=http://mmajunkie.com/news/28412/alistair-overeem-denied-license-to-fight-may-reapply-with-nsac-on-december-27.mma|title=Alistair Overeem denied license to fight, may reapply with NSAC on Dec. 27|work=mmajunkie.com|date=24 April 2012|access-date=24 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120426211938/http://mmajunkie.com/news/28412/alistair-overeem-denied-license-to-fight-may-reapply-with-nsac-on-december-27.mma|archive-date=26 April 2012}}

One day prior to his meeting with the NSAC, Overeem released a prepared statement to the media in which he claims the positive result of the drug test came as a result of a doctor-prescribed "anti-inflammatory medication that was mixed with testosterone."{{cite web|url=http://mmajunkie.com/news/28388/after-failed-test-ufcs-alistair-overeem-blames-prescribed-medication-for-high-te-ratio.mma|title=After failed test, UFC's Alistair Overeem blames prescribed medication for high T/E ratio|work=mmajunkie.com|date=23 April 2012|access-date=23 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120424205217/http://mmajunkie.com/news/28388/after-failed-test-ufcs-alistair-overeem-blames-prescribed-medication-for-high-te-ratio.mma|archive-date=24 April 2012}} Overeem's lawyer filed a continuation request for additional time to gather support for his recent claim, which was voted on by the NSAC on 24 April 2012.{{cite web|url=http://mmajunkie.com/news/28397/nsac-vote-decides-on-alistair-overeems-continuation-request.mma|title=NSAC vote decides on Alistair Overeem's continuation request|work=mmajunkie.com|date=23 April 2012|access-date=23 April 2012|url-status=dead|archive-url=https://web.archive.org/web/20120425211216/http://mmajunkie.com/news/28397/nsac-vote-decides-on-alistair-overeems-continuation-request.mma|archive-date=25 April 2012}} The request was denied and the NSAC voted unanimously to deny Overeem's application status for a period of nine months, dating back to 27 March, the day of his drug test. He was allowed to reapply after this time period in December 2012.{{cite web|url=http://www.mmafighting.com/ufc/2012/4/24/2972471/alistair-overeem-license-request-denied-can-re-apply-in-december|title=Alistair Overeem License Request Denied; Can Re-Apply in December|work=mmafighting.com |date=24 April 2012|access-date=24 April 2012}}

Overeem returned to face Antônio Silva on 2 February 2013 at UFC 156.{{cite web|url=http://www.lvrj.com/sports/overeem-eyes-return-at-ufc-156-to-face-bigfoot-silva-on-super-bowl-weekend-179219711.html|title=Overeem eyes return at UFC 156 to face 'Bigfoot' Silva on Super Bowl weekend|work=Las Vegas Review-Journal|date=13 November 2012|access-date=14 November 2012}} Leading up to the fight, Overeem was dismissive of Silva's skills, claiming he was better than his opponent in every aspect of MMA.{{cite web|url=http://www.mmamania.com/2013/1/28/3926182/alistair-overeem-antonio-bigfoot-silva-ufc-156-knockout-mma|title=Alistair Overeem says Bigfoot Silva will be just another statistic after UFC 156 knockout|work=MMAmania.com|date=28 January 2013|access-date=4 February 2013}} Despite being a heavy betting favourite and having won rounds one and two, an overconfident Overeem lost to Silva by KO in the third round.[https://web.archive.org/web/20130204223047/http://blogs.telegraph.co.uk/sport/garethadavies/100026138/ufc-156-antonio-bigfoot-silva-flattens-overconfident-alistair-overeem-with-brutal-stoppage/ "UFC 156: Antonio Bigfoot Silva flattens overconfident Alistair Overeem with brutal stoppage", by Gareth Davies, The Telegraph]

Overeem was expected to face former UFC Heavyweight Champion Junior dos Santos on 25 May 2013 at UFC 160.{{cite web|url=http://www.mmajunkie.com/news/2013/02/velasquez-silva-2-dos-santos-overeem-booked-for-ufc-160-in-may|title=Velasquez-Silva 2, Dos Santos-Overeem booked for UFC 160 in May|publisher=mmajunkie.com |author=Matt Erickson |date=12 February 2013|access-date=12 February 2013}} However, in early March, Overeem pulled out of the bout, citing an injury{{cite web|url=http://www.mmafighting.com/2013/3/6/4072916/alistair-overeem-injured-out-of-ufc-160-fight-against-junior-dos|title=Alistair Overeem injured, out of UFC 160 fight against Junior dos Santos|publisher=MMAfighting.com|last=Helwani|first=Ariel|date=6 March 2013|access-date=6 March 2012}} and was replaced by Mark Hunt.{{cite web|url=http://www.mmafighting.com/2013/3/9/4082300/mark-hunt-vs-junior-dos-santos-on-for-ufc-160|title=Mark Hunt vs. Junior dos Santos on for UFC 160|publisher=MMAFighting.com|author=Ariel Helwani|date=9 March 2013|access-date=9 March 2012}}

For his third fight with the promotion, Overeem faced Travis Browne in the co-main event at UFC Fight Night 26 on 17 August 2013.{{cite web|url=http://www.mmajunkie.com/news/2013/05/alistair-overeem-vs-travis-browne-set-as-ufc-on-fox-sports-1-1-non-headliner|title=Alistair Overeem vs. Travis Browne set as UFC on FOX Sports 1 1 non-headliner|publisher=MMAJunkie.com|author=Steven Marrocco and John Morgan|date=22 May 2013|access-date=22 May 2013}} Overeem was dominant early in the fight, attacking Browne with a flurry of knees and punches. Browne recovered and defeated Overeem via TKO with a front kick.

Overeem was scheduled to face Frank Mir on 16 November 2013 at UFC 167.{{cite web |url=http://www.mmajunkie.com/news/2013/09/frank-mir-alistair-overeem-added-to-novembers-ufc-167-in-las-vegas |title=Frank Mir, Alistair Overeem added to November's UFC 167 in Las Vegas|publisher=mmajunkie.com |author=Matt Erickson|date=5 September 2013|access-date=5 September 2013}} However, the pairing was moved to 1 February 2014 at UFC 169.{{cite web |url=https://www.espn.com/new-york/story/_/id/9766356/frank-mir-alistair-overeem-fight-moves-ufc-169-newark |title=Mir-Overeem fight moved to Feb. 1|work=ESPN |author=Brett Okamoto|date=3 October 2013|access-date=3 October 2013}} He defeated Mir by unanimous decision and called out Brock Lesnar in his post-fight interview.{{cite web|url=http://fansided.com/2014/02/01/alistair-overeem-calls-brock-lesnar-ufc-169-win/#!CnTrr|title=Alistair Overeem calls out Brock Lesnar after UFC 169 win|publisher=fansided.com|author=Josh Sanchez|date=1 February 2014|access-date=1 April 2014}}

Overeem injured his elbow and decided to take the time out to have surgery, expecting to return in September 2014.{{cite web|url=http://mmanuts.com/news/alistair-overeem-surgery-elbow/ |title=Alistair Overeem to Have Surgery on His Elbow |publisher=mmanuts.com|author=Dave Walsh |date=9 April 2014|access-date=9 April 2014 }} On 9 July, the UFC announced he would face Ben Rothwell on 5 September 2014 at UFC Fight Night 50.{{cite web|url=http://msn.foxsports.com/ufc/story/alistair-overeem-vs-ben-rothwell-added-to-ufc-fight-night-in-connecticut-070914|title=Alistair Overeem vs. Ben Rothwell Added to UFC Fight Night in Connecticut|publisher=msn.foxsports.com|access-date=9 July 2014|date=9 July 2014}} Rothwell defeated Overeem via TKO in the first round.{{cite web|url=http://mmajunkie.com/2014/09/ufc-fight-night-50-results-ben-rothwell-shocks-alistair-overeem-in-opening-round|title=UFC Fight Night 50 results: Ben Rothwell shocks Alistair Overeem in opening round|publisher=mmajunkie.com|author=Steven Marrocco|access-date=5 September 2014|date=5 September 2014}}

Overeem faced Stefan Struve at UFC on Fox 13 on 13 December 2014.{{cite web|url=http://mmajunkie.com/2014/09/alistair-overeem-vs-stefan-struve-booked-for-ufc-on-fox-13-in-phoenix|title=Alistair Overeem vs. Stefan Struve booked for UFC on FOX 13 in Phoenix|publisher=mmajunkie.com |author=Matt Erickson |date=17 September 2014|access-date=18 September 2014}} He won the fight via KO in the first round.

Overeem next faced Roy Nelson on 14 March 2015 at UFC 185.{{cite web|url=http://www.mmafighting.com/2015/1/6/7505839/ufc-185-fight-card-alistair-overeem-vs-roy-nelson|title=Alistair Overeem vs. Roy Nelson slated for UFC 185|publisher=mmafighting.com|author=Shaun Al-Shatti|date=6 January 2015|access-date=7 January 2015}} He won the fight by unanimous decision.

A bout with Junior dos Santos was rescheduled for 19 December 2015 at UFC on Fox 17.{{cite web|url=http://www.mmafighting.com/2015/8/25/9207395/junior-dos-santos-vs-alistair-overeem-set-for-ufc-on-fox-17-in|title=Junior dos Santos vs. Alistair Overeem set for UFC on FOX 17 in December |publisher=mmafighting.com|author=Luke Thomas|date=25 August 2015|access-date=25 August 2015}} He won the fight via TKO in the second round.{{cite web|url=http://www.mmafighting.com/2015/12/19/10628342/ufc-on-fox-17-results-alistair-overeem-knocks-out-junior-dos-santos|title=UFC on FOX 17 results: Alistair Overeem knocks out Junior dos Santos|author=Dave Doyle|publisher=mmafighting.com|date=19 December 2015|access-date=19 December 2015}}

On 15 February 2016, Overeem announced that he had signed a new contract with the UFC.{{cite web|url=http://mmajunkie.com/2016/02/on-three-fight-winning-streak-alistair-overeem-stays-with-ufc-with-renewed-contract|title=On 3-fight winning streak, Alistair Overeem stays with UFC with renewed contract|author=Matt Erickson|publisher=mmajunkie.com|date=15 February 2016}}

Overeem faced Andrei Arlovski on 8 May 2016 at UFC Fight Night 87.{{cite web|url=http://www.mmamania.com/2016/2/20/11078924/alistair-overeem-vs-andrei-arlovski-heavyweight-main-event-set-ufc-fgiht-night-87-rotterdam-mma|title=Alistair Overeem vs Andrei Arlovski heavyweight main event set for UFC Fight Night 87 in Rotterdam|publisher=mmamania.com|author=Brad Popkin|date=20 February 2016|access-date=20 February 2016}} He won the fight via TKO early in the second round.{{cite web|url=http://www.bloodyelbow.com/2016/5/8/11635688/ufc-rotterdam-main-event-result-alistair-overeem-knocks-out-andrei-arlovski|title=UFC Rotterdam main event result: Alistair Overeem knocks out Andrei Arlovski|author=Mookie Alexander|publisher=bloodyelbow.com|date=8 May 2016|access-date=8 May 2016|archive-date=10 May 2016|archive-url=https://web.archive.org/web/20160510103523/http://www.bloodyelbow.com/2016/5/8/11635688/ufc-rotterdam-main-event-result-alistair-overeem-knocks-out-andrei-arlovski|url-status=dead}} Subsequently, he earned his first Performance of the Night bonus.{{cite web|url=http://www.sherdog.com/news/news/UFC-Rotterdam-Bonuses-Overeem-Struve-Nelson-de-Randamie-Pocket-3650K-104649|title=UFC Rotterdam bonuses: Overeem, Struve, Nelson, de Randamie pocket $50K|author=Tristen Critchfield|publisher=sherdog.com|date=8 May 2016|access-date=8 May 2016}}

Overeem faced Stipe Miocic for the UFC Heavyweight Championship on 10 September 2016 at UFC 203.{{cite news|url=http://www.mmafighting.com/2016/5/25/11779536/stipe-miocic-vs-alistair-overeem-set-for-ufc-203-in-cleveland|title=Stipe Miocic vs. Alistair Overeem set for UFC 203 in Cleveland|publisher=mmafighting.com|author=Danny Segura|date=25 May 2016|access-date=25 May 2016}} Overeem dropped Miocic with a quick straight left punch before losing the fight via knockout in the first round.{{cite news|url=http://www.mmafighting.com/2016/9/11/12876878/ufc-203-results-stipe-miocic-wins-thrilling-brawl-over-alistair|title=UFC 203 results: Stipe Miocic wins thrilling brawl over Alistair Overeem|publisher=mmafighting.com|author=Dave Doyle|date=10 September 2016|access-date=10 September 2016}} Both participants were awarded Fight of the Night honors.{{cite web |url=http://www.sherdog.com/news/news/UFC-203-Bonuses-Miocic-Overeem-Andrade-Medeiros-Receive-3650K-111019|title=UFC 203 bonuses: Miocic, Overeem, Andrade, Medeiros receive $50K|publisher=sherdog.com|author=Tristen Critchfield|date=10 September 2016|access-date=10 September 2016}}

Overeem faced Mark Hunt in a rematch on 4 March 2017 at UFC 209.{{cite web |url=http://www.sherdog.com/news/news/Alistair-Overeem-vs-Mark-Hunt-Set-for-UFC-209-in-Las-Vegas-on-March-4-115237|title=Alistair Overeem vs. Mark Hunt Set for UFC 209 in Las Vegas on March 4|publisher=sherdog.com|author=Tristen Critchfield|date=20 December 2016|access-date=20 December 2016}} He won the fight via knockout in the third round.{{Cite web|url=http://www.mmafighting.com/2017/3/4/14818414/ufc-209-results-alistair-overeem-faceplants-mark-hunt-in-third|title=UFC 209 results: Alistair Overeem faceplants Mark Hunt in third|publisher=mmafighting.com|author=Dave Doyle|date=4 March 2017 |access-date=4 March 2017}}

A third fight with Fabrício Werdum took place on 8 July 2017 at UFC 213.{{Cite web|url=http://www.mmamania.com/2017/3/29/15109932/fabricio-werdum-vs-alistair-overeem-added-to-ufc-213|title=Fabricio Werdum versus Alistair Overeem added to International Fight Week's UFC 213|date=29 March 2017|website=MMAmania.com|author=Ryan Harkness|access-date=29 March 2017}} Overeem won the fight by majority decision.{{Cite news|url=http://www.bjpenn.com/mma-news/ufc-213/ufc-213-results-alistair-overeem-defeats-fabricio-werdum-highlights/|title=UFC 213 Results: Alistair Overeem defeats Fabricio Werdum (Highlights) {{!}} BJPenn.com|date=8 July 2017|work={{!}} BJPenn.com|access-date=9 July 2017|language=en-US}}

Overeem faced Francis Ngannou on 2 December 2017 at UFC 218.{{cite news|url=http://www.sherdog.com/news/news/Heavyweight-Contenders-Alistair-Overeem-Francis-Ngannou-Set-to-Clash-at-UFC-218-127217|title=Heavyweight contenders Alistair Overeem, Francis Ngannou set to clash at UFC 218|publisher=sherdog.com|author=Tristen Critchfield|date=27 September 2017|access-date=27 September 2017}} He lost the fight via knockout in the first round.{{cite news|last1=Campbell|first1=Brian|title=UFC 218 results: Francis Ngannou flattens Alistair Overeem with vicious KO|url=https://www.cbssports.com/mma/news/ufc-218-results-francis-ngannou-flattens-alistair-overeem-with-vicious-ko/|access-date=3 December 2017|work=CBS Sports|date=3 December 2017|language=en}}

Overeem faced Curtis Blaydes on 9 June 2018 at UFC 225.{{Cite web|url=http://mmadna.nl/alistair-overeem-keert-terug-tijdens-ufc-225-in-chicago-tegen-curtis-blaydes/|title=Alistair Overeem returns at UFC 225 in Chicago against Curtis Blaydes|author=Marcel Dorff|website=mmadna.nl|date=1 March 2018|access-date=1 March 2018|language=nl}} He lost the fight via TKO due to elbows in the third round.{{Cite news|url=https://mmajunkie.com/2018/06/ufc-225-results-curtis-blaydes-elbows-slice-open-finish-alistair-overeem|title=UFC 225 results: Curtis Blaydes elbows slice open, finish Alistair Overeem|date=10 June 2018|work=MMAjunkie|access-date=10 June 2018|language=en-US}}

Overeem faced promotional newcomer Sergei Pavlovich on 24 November 2018 at UFC Fight Night 141.{{cite web|url=http://mmadna.nl/alistair-overeem-treft-ongeslagen-ufc-debutant-sergey-pavlovich-tijdens-ufc-beijing/|title=Alistair Overeem faces off with unbeaten UFC debutant Sergey Pavlovich at UFC Beijing|publisher=mmadna.nl|author=Marcel Dorff|date=18 October 2018|access-date=18 October 2018|language=nl}} He won the fight via TKO in the first round.{{Cite news|url=https://www.mmamania.com/2018/11/24/18109807/ufc-fight-night-141-results-alistair-overeem-finishes-sergey-pavlovich-ground-assault-in-first|title=Overeem Finishes Sergey Pavlovich With 1st-Round Ground Assault|work=MMAmania.com|access-date=24 November 2018}}

Overeem was expected to face Alexander Volkov on 20 April 2019 at UFC Fight Night 149.{{Cite web|url=http://mmadna.nl/alexander-volkov-vs-alistair-overeem-is-het-main-event-voor-ufc-st-petersburg/|title=Alexander Volkov vs. Alistair Overeem is het Main Event voor UFC St.Petersburg|work=MMA DNA|date=8 February 2019 |language=en-US|access-date=2019-02-09}} Volkov was forced to withdraw from the bout, and was replaced by Alexey Oleynik.{{cite web|url=https://mmajunkie.com/2019/04/aleksei-oleinik-replaces-alexander-volkov-vs-alistair-overeem-ufc-on-espn-plus-7-headliner|title=Aleksei Oleinik replaces Alexander Volkov vs. Alistair Overeem in UFC on ESPN+ 7 headliner|date=March 3, 2019|publisher=mmajunkie.com|author=Mike Bohn}} After a few back-and-forth exchanges, Overeem won the fight via technical knockout in round one.{{Cite web|url=https://mmajunkie.com/2019/04/ufc-st-petersburg-results-alistair-overeem-finishes-aleksei-oleinik-in-first-round|title=UFC St. Petersburg results: Alistair Overeem finishes Aleksei Oleinik in first round|date=2019-04-20|website=MMA Junkie|language=en|access-date=2019-04-21}}

Overeem was expected to face Walt Harris on 7 December 2019 at UFC on ESPN 7.{{Cite web|url=https://mmajunkie.usatoday.com/2019/08/ufc-washington-dc-alistair-overeem-vs-walt-harris-headlines|title=Alistair Overeem vs. Walt Harris headlines UFC on ESPN 7|website=mmajunkie.com|author=Steven Marrocco|date=2019-08-13|access-date=2019-08-14}} However, Harris pulled out on 1 November 2019 due to the ongoing search for his missing step-daughter,{{Cite web|url=https://mmajunkie.usatoday.com/2019/11/walt-harris-out-ufc-on-espn-7-dc-main-event-alistair-overeem/amp|title=Walt Harris withdraws from UFC on ESPN 7 headliner vs. Alistair Overeem|publisher=mmajunkie.com|author=Mike Bohn|date=2019-11-01|access-date=2019-11-01}} and he was replaced by Jairzinho Rozenstruik.{{Cite web|url=https://mmajunkie.usatoday.com/2019/11/jair-rozenstruik-meets-alistair-overeem-ufc-on-espn-7-headliner-walt-harris-out|title=Jair Rozenstruik meets Alistair Overeem in UFC on ESPN 7 headliner with Walt Harris out|date=2019-11-05|website=MMA Junkie|language=en|access-date=2019-11-05}} He lost the fight via knockout in the last four seconds of the fifth round after being up on all three judges' scorecards (39–37, 39–37, and 40–36).{{Cite web|url=https://cagesidepress.com/2019/12/08/ufc-dc-results-jairzinho-rozenstruik/|title=UFC DC Results: Jairzinho Rozenstruik Lands Miracle KO in Final Seconds|last=Doherty|first=Dan|date=2019-12-08|website=Cageside Press|language=en-US|access-date=2019-12-08}}

The bout with Walt Harris was rescheduled to take place on 11 April 2020 at UFC Fight Night: Overeem vs. Harris. Due to the COVID-19 pandemic, the event was eventually postponed.{{cite web|url=https://mmajunkie.usatoday.com/2020/03/ufc-postpones-three-events-coronavirus-pandemic|title=UFC postpones three events amid growing coronavirus outbreak|publisher=mmajunkie.usatoday.com|author=Nolan King and John Morgan|date=2020-03-15|access-date=2020-03-16}} The fight was rescheduled to 16 May 2020 at UFC on ESPN: Overeem vs. Harris.{{Cite web|title=UFC reveals full fight cards for May 13 and May 16 events|url=https://www.mmafighting.com/2020/5/1/21244699/ufc-reveals-full-fight-cards-for-may-13-and-may-16-including-main-card-and-prelims|last=Martin|first=Damon|date=2020-05-01|website=MMA Fighting|language=en|access-date=2020-05-04}} Overeem was dropped and almost finished early in the first round, but went onto dominate the fight with ground and pound, eventually finishing Harris with a head kick and more ground and pound for a second-round TKO win.{{Cite web|title=UFC on ESPN 8 Results: Alistair Overeem Survives, Finishes Walt Harris|url=https://cagesidepress.com/2020/05/17/ufc-espn-8-results-alistair-overeem-walt-harris/|last=Evanoff|first=Josh|date=2020-05-17|website=Cageside Press|language=en-US|access-date=2020-05-17}}

Overeem faced Augusto Sakai on 5 September 2020 in the main event of UFC Fight Night 176.{{Cite web|date=2020-07-14|title=Sources: UFC eyeing Overeem-Sakai for Sept. 5|url=https://www.espn.com/mma/story/_/id/29461257/sources-ufc-eyeing-alistair-overeem-vs-augusto-sakai-sept-5|author=Brett Okamoto|access-date=2020-07-20|website=ESPN.com|language=en}} He won the fight via technical knockout in the fifth round.{{Cite web|last=Vreeland|first=Daniel|date=2020-09-05|title=UFC Vegas 9 Results: Alistair Overeem Uses Ground Game to Take Out Sakai in 5th|url=https://cagesidepress.com/2020/09/05/ufc-vegas-9-results-alistair-overeem/|access-date=2020-09-06|website=Cageside Press|language=en-US}}

Overeem faced Alexander Volkov on 6 February 2021 at UFC Fight Night 184.{{Cite web|date=2020-11-12|title=ALISTAIR OVEREEM HEADLINES FEB. 6 UFC FIGHT NIGHT EVENT AGAINST ALEXANDER VOLKOV|url=https://www.sherdog.com/news/news/Alistair-Overeem-Headlines-Feb-6-UFC-Fight-Night-Event-Against-Alexander-Volkov-176165|access-date=2020-11-12|website=Sherdog|language=en-GB}} He lost the fight via technical knockout in round two.{{Cite web|last=Doherty|first=Dan|date=2021-02-06|title=UFC Vegas 18 Results: Alexander Volkov Dominates, Finishes Alistair Overeem|url=https://cagesidepress.com/2021/02/06/ufc-vegas-18-results-alexander-volkov/|access-date=2021-02-07|website=Cageside Press|language=en-US}}

On 3 March 2021, it was announced that Overeem had been released from his UFC contract.{{cite web|url=https://mmajunkie.usatoday.com/2021/03/ufc-news-junioe-dos-santos-alistair-overeem-no-longer-roster-departure-part-ways|title=UFC parts ways with former champion Junior Dos Santos, perennial contender Alistair Overeem|author=Nolan King, Mike Bohn|work=MMAJunkie.com|date=March 3, 2021|access-date=March 3, 2021}}

Overeem had his first professional kickboxing fight at the age of 17, in a K-1 rules fight on {{Start date|df=yes|1997|11|15}}, winning the fight. After that he fought against Paul Hordijk, winning by decision on {{Start date|df=yes|1999|03|14}}. Overeem then moved on to K-1, having two K-1 fights in six years against Errol Parris and Glaube Feitosa. Overeem was knocked out in both bouts and stayed with MMA from then on. He did not fight in K-1 for four more years.

On 31 December 2008, Overeem faced Badr Hari, one of K-1's top contenders, under K-1 rules at Dynamite!! 2008. He defeated Hari by way of knockout in the first round.

On 28 March 2009 he faced Remy Bonjasky, the defending K-1 Champion, at the K-1 World GP 2009 in Yokohama. Overeem had success in the first and second rounds, but was knocked down by a right hook from Bonjasky in the third, who secured a unanimous decision win. All three judges scored the bout 30–28 in favour of Bonjasky.

On 26 September, at the K-1 World Grand Prix 2009 Final 16, having been selected by fan voting after his impressive performances against Remy Bonjasky and Badr Hari, Overeem shocked the kickboxing world by achieving a huge upset. He defeated K-1's longest-serving member, legendary three-time champion Peter Aerts, by unanimous decision.

At the K-1 World Grand Prix 2009 Final, Overeem knocked out the Kyokushin karate champion, Ewerton Teixeira, with a knee strike in the first round, but lost to Badr Hari via TKO in the semifinals.

At the K-1 World Grand Prix 2010 in Yokohama, Overeem defeated Dzevad Poturak via KO (right knee) in round one at 2:40.[http://mmafrenzy.com/13828/k-1-world-grand-prix-2010-in-yokohama-results-overeem-and-hari-win-schilt-and-kyotara-defend-titles/ K-1 World Grand Prix reemy 2010 in Yokohama Results: Overeem and Hari Win; Schilt and Kyotara Defend Titles]. MMAFrenzy.com (3 April 2010). Retrieved on 23 October 2011. Overeem defeated Ben Edwards by TKO in the first round on 2 October 2010 at K-1 World Grand Prix 2010 Final 16, which qualified him for the 2010 K-1 World Grand Prix.[http://www.mmafighting.com/2010/09/08/alistair-overeem-vs-ben-edwards-jerome-le-banner-vs-kyotaro-a/ Overeem-Edwards, Le Banner-Kyotaro Announced for K-1 Final 16]. Mmafighting.com. Retrieved on 23 October 2011.

On 11 December, at the Ariake Coliseum, Overeem won the K-1 World Grand Prix 2010 Final. In the quarterfinals, he beat Tyrone Spong by unanimous decision (29–27, 29–28, and 29–27). In the semi-finals, he defeated Gokhan Saki by first-round TKO after breaking Saki's right arm with a left middle kick. Saki's arm was already injured as a result of his previous fight with Daniel Ghita. In the finals, he fought Peter Aerts for a second time. Overeem came out aggressively and finished Aerts in the first round.

Over a decade removed from his previous kickboxing bouts, news surfaced on 8 June 2021, that Overeem had signed a multi-fight contract with Glory.{{cite web|url=https://www.espn.com/mma/story/_/id/31590172/former-ufc-star-alistair-overeem-signs-multi-fight-deal-glory-kickboxing|title=Former UFC star Alistair Overeem signs multifight deal with Glory Kickboxing|author=Ariel Helwani|date=June 8, 2021|work=ESPN}}

Overeem was scheduled to challenge the reigning Glory Heavyweight champion Rico Verhoeven at Glory: Collision 3 on 23 October 2021.{{cite web |last1=MMA Fighting Newswire |title=GLORY champ Rico Verhoeven defends heavyweight title against Alistair Overeem on Oct. 23 |url=https://www.mmafighting.com/2021/8/23/22638077/glory-champ-rico-verhoeven-defends-heavyweight-title-against-alistair-overeem-on-oct-23 |website=mmafighting.com |date=23 August 2021 |access-date=23 August 2021}} On 6 October 2021 it was announced that Overeem had to withdraw from the event due to an injury.{{cite web|url=https://mmajunkie.usatoday.com/2021/10/alistair-overeem-injured-out-of-glory-title-fight-vs-rico-verhoeven|title=Alistair Overeem injured, out of GLORY Kickboxing title fight against Rico Verhoeven|website=MMA Junkie|date=2021-10-06|access-date=2021-10-26}} He was replaced by former Glory heavyweight title challenger Jamal Ben Saddik.{{cite web|url=https://www.sherdog.com/news/news/Jamal-Ben-Saddik-Steps-In-to-Challenge-Rico-Verhoeven-for-Glory-Heavyweight-Title-182174|title=Jamal Ben Saddik Steps In to Challenge Rico Verhoeven for Glory Heavyweight Title|website=Sherdog|date=2021-10-08|access-date=2021-10-26}}

Overeem faced Badr Hari on 8 October 2022 at Glory: Collision 4.{{Cite web |last=Heck |first=Mike |date=2022-05-25 |title=Alistair Overeem vs. Badr Hari 3 set to headline GLORY Collision 4 in October |url=https://www.mmafighting.com/2022/5/25/23141313/alistair-overeem-vs-badr-hari-3-set-to-headline-glory-collision-4-in-october |access-date=2022-05-27 |website=MMA Fighting |language=en}} He won the fight via unanimous decision.{{cite web|url=https://www.mmafighting.com/2022/10/8/23394475/glory-collision-4-results-alistair-overeem-surges-thrilling-comeback-win-to-end-badr-hari-trilogy|title=Glory Collision 4 results: Alistair Overeem surges for thrilling comeback win to end Badr Hari trilogy|website=MMA Fighting|date=2022-10-08|access-date=2022-10-09}} On 21 November 2022, it was revealed that Overeem had tested positive for a banned substance.{{cite web |last1=Strobel |first1=Kevin |title=Alistair Overeem Tests Positive for Banned Substance After His Win Over Badr Hari at COLLISION 4 |url=https://beyondkick.com/news/alistair-overeem-tests-positive-for-banned-substance-after-his-win-over-badr-hari-at-collision-4 |website=beyondkick.com |access-date=23 November 2022 |date=21 November 2022}} After a few months the B- Sample was also tested positive the decision was overturned to a No-Contest due to the use of Performance-enhancing Drugs.

Overeem was scheduled to headline the first Wrestling Entertainment Series (WES) event in England against WWE wrestler Braun Strowman.{{Cite web |last=Shelton |first=Cole |date=2022-05-18 |title=Alistair Overeem to make pro wrestling debut against Braun Strowman |url=https://www.bjpenn.com/mma-news/ufc/alistair-overeem-to-make-pro-wrestling-debut-against-braun-strowman/ |access-date=2022-05-18 |website={{!}} BJPenn.com |language=en-US}} After two prior cancellations and being rescheduled to take place on 9 July 2022, Wrestling Entertainment Series canceled its inaugural event.{{cite web|url=https://www.f4wonline.com/news/other-wrestling/wrestling-entertainment-series-cancels-debut-show|title=Wrestling Entertainment Series cancels debut show|website=www.f4wonline.com|date=2022-07-06|access-date=2023-07-01}}

During the 2023 Dutch general election, Overeem participated for the last candidate on the party list of Belang van Nederland (BVNL). BVNL is a right-wing political party in the Netherlands, led by Wybren van Haga. The party was unable to win a seat.{{Cite web |date=2023-10-04 |title=Overeem (43) beëindigt vechtsportcarrière en gaat de politiek in |url=https://nos.nl/artikel/2492896-overeem-43-beeindigt-vechtsportcarriere-en-gaat-de-politiek-in |access-date=2024-03-08 |website=nos.nl |language=nl}}{{Cite web |title=NOS - Uitslagen Tweede Kamerverkiezingen 2023 |url=https://app.nos.nl/nieuws/tk2023/ |access-date=2024-03-08 |website=app.nos.nl |language=nl}}

Overeem is considered one of the most well-rounded heavyweights in the sport,{{cite news |last=Slack|first=Jack |url=http://fightland.vice.com/blog/overeem-vs-arlovski-a-night-of-karate-and-crane-kicks|title=Overeem vs Arlovski: A Night of Karate and Crane Kicks|work=Fightland|date=9 May 2016 |access-date=7 July 2016 }} though he is mainly known for his excellence and power in the striking field. A kickboxer of the Dutch school of Muay Thai decorated in K-1 world tournaments,Snowden, Jonathan. MMA Encyclopedia, ECW Press, 2010 Overeem favours kicks to the body and legs and knee strikes from the clinch,{{cite news |last=Richardson|first=Andrew|url=http://www.mmamania.com/2016/5/5/11593594/fighter-break-down-ufc-fight-night-87-alistair-overeem-strengths-weaknesses-heavyweight-mma|title=Fighter on Fighter: Breaking down UFC Fight Night 87's Alistair Overeem|work=MMA Mania|date=5 May 2016 |access-date=7 July 2016 }} which have been described as "devastating."{{cite news|url=http://www.mmamania.com/2011/12/21/2650236/ultimate-submissions-ufc-141-brock-lesnar-takedown-alistair-overeem-choke|title=Ultimate Submissions: Brock Lesnar's takedown vs Alistair Overeem's guillotine|work=MMA Mania|date=21 December 2011 |access-date=7 July 2016}} His most famous finishing technique used to be the left knee to the midsection, which he has utilised to end many fights, but he switched to the left body kick instead late in his career. He is also proficient with left overhands and hooks once his opponents are worn down. On the grappling field, Overeem is universally known for his usage of the guillotine choke, a simple technique he uses to great effect thanks to his strength and height. Overeem was labeled as "the best grappler in Europe" after submitting all his opponents in the ADCC 2005 tryouts through this move.{{cite news|url=http://www.graciemag.com/2012/01/5-reasons-cigano-should-fear-overeems-jiu-jitsu/|title=5 reasons Cigano should fear Overeem's Jiu-Jitsu|work=GracieMag|date=6 January 2012 |access-date=7 July 2016 }}

Overeem's great-great-grandfather was enslaved on the island of Jamaica. He became a free man and bought a large tract of land on which he started a village, which has survived and prospered to this day. His Dutch mother is a descendant of King William III of the Netherlands through one of his many illegitimate children.[http://www.sherdog.com/news/news/Overeems-Royal-Lineage-Uncovered-31499 Alistair Overeem royal heritage]

Overeem has a cameo appearance in the music video for LMFAO's hit single "Sexy and I Know It".{{Cite web|last=Caron|first=Nick|title=UFC's Alistair Overeem Appears in Music Video for "Sexy and I Know It" by LMFAO|url=https://bleacherreport.com/articles/855618-ufcs-alistair-overeem-appears-in-music-video-for-sexy-and-i-know-it-by-lmfao|access-date=2020-11-20|website=Bleacher Report|language=en}}

In 2009, Alistair and his brother were involved in an altercation at a Dutch dance club. Alistair started arguing with a bouncer when he found himself without coins to pay the toilet woman and was asked to leave by five other security workers. Valentijn intervened in his favor and was hit in the face with a flash light, which incited a brawl. The incident ended with five bouncers having to go urgently to the hospital and Alistair being forced to turn down a title fight due to a hand injury gained in the brawl.{{cite news|url=https://www.espn.com/blog/mma/post/_/id/974/alistair-overeem-hospitalizes-five-bouncers-then-himself|title=Overeem hospitalizes five bouncers, then himself|work=ESPN|date=22 May 2009|access-date=7 July 2016 }}

On 1 January 2012, following his match with Brock Lesnar at UFC 141, Overeem shoved a woman in the face, "causing her to stagger back," at the Wynn Las Vegas at about 3 a.m., according to the Las Vegas Police Department. Not arrested but summoned to court, Overeem was charged with misdemeanor battery and faced a maximum of six months in the Clark County Detention Center and a fine up to $1,000.{{cite news |url=http://www.lvrj.com/sports/ufc-fighter-overeem-charged-with-battery-138382939.html |title=UFC fighter Overeem charged with battery |newspaper=Las Vegas Review-Journal |date=31 January 2012 |first=Adam |last=Hill }} On 28 March 2012, Overeem was given a 90-day county jail sentence that would be suspended depending on the completion of 50 hours of community service and anger management.{{cite news|title=Alistair Overeem Sentenced To No Jail Time for January Battery Incident|url=http://www.mmaweekly.com/alistair-overeem-sentenced-to-no-jail-time-for-january-battery-incident|newspaper=MMA Weekly}}

• K-1
• K-1 2009 World Grand Prix (Third place)
• K-1 2010 World Grand Prix (Champion)

• Ultimate Fighting Championship
• Heavyweight Title Challenger
• Performance of the Night (One time) {{small| vs. Andrei Arlovski}}
• Fight of the Night (One time) {{small| vs. Stipe Miocic}}
• Tied (Cain Velasquez & Andrei Arlovski) for second most knockdowns landed in UFC Heavyweight division history (10){{cite web|url=http://statleaders.ufc.com/?fighter_status=0&weight_class=HW|title=UFC Stats - Heavyweight Division|date=June 5, 2023|author=UFC.com|publisher=UFC}}
• Most knockout losses in Zuffa, LLC (UFC, Pride, WEC, Strikeforce) history (13){{cite web|url=https://mmajunkie.usatoday.com/lists/ufc-on-espn-45-post-event-facts-jim-miller-records-knockout-wins-finishes-hall-of-fame|title=UFC on ESPN 46 post-event facts: Is Jim Miller's record resume UFC Hall of Fame worthy?|date=June 4, 2023|author=Mike Bohn|publisher=mmajunkie.com}}
• UFC.com Awards
• 2011: Ranked #10 Import of the Year {{small|(Tied with Danny Castillo)}}{{cite web|url=https://www.ufc.com/news/ten-best-2011-import-year|title=Ten Best - 2011 Import of the Year|date=January 2, 2012|author=Thomas Gerbasi|work=Ultimate Fighting Championship}}
• Strikeforce
• Strikeforce Heavyweight Championship (One time; First; Last; Only)
• One successful title defence
• PRIDE Fighting Championships
• 2005 PRIDE Middleweight Grand Prix Semifinalist
• DREAM
• DREAM Heavyweight Championship (One time; First; Last; Only)
• 2 Hot 2 Handle
• 2H2H Light heavyweight Championship (One time)
• 2H2H Light heavyweight Tournament Winner
• World MMA Awards
• 2010 International Fighter of the Year{{cite news|last=Mrosko|first=Geno|title=2010 World MMA Awards Winners and Results|url=http://www.mmamania.com/2010/12/2/1850347/2010-world-mma-awards-winners-and-results|access-date=13 January 2013|newspaper=MMA Mania|date=2 December 2010}}
• 2011 International Fighter of the Year{{cite news|last=Chiapetta|first=Mike|title=2011 World MMA Awards Results|url=https://www.mmafighting.com/2011/11/30/2011-world-mma-awards-results|access-date=17 December 2022|newspaper=MMA Fighting|date=30 November 2011}}
• Sherdog
• 2010 All-Violence Second Team{{cite web|url=http://www.sherdog.com/news/articles/3/Sherdogs-2010-AllViolence-Team-29293|title=Sherdog's 2010 All-Violence Team - Second Team|author=Jordan Breen|publisher=sherdog.com|date=10 January 2011}}
• 2015 All-Violence Third Team{{cite web|url=http://www.sherdog.com/news/articles/3/Sherdogcoms-2015-AllViolence-Team-97945|title=Sherdog.com's 2015 All-Violence Team - Third Team|author=Jordan Breen|work=Sherdog|date=2 January 2016|access-date=7 July 2016}}
• MMADNA.nl
• 2018 Dutch Fighter of the Year.{{Cite web|url=http://mmadna.nl/mma-dna-ufc-awards-2018-de-uitslagen/|title=MMA DNA UFC Awards 2018 : De Uitslagen!!!|date=18 January 2019 |language=en-US|access-date=2019-01-28}}

• ADCC Submission Wrestling World Championship
• 2005 ADCC European Trials -98.9 kg Winner{{cite web|url=http://adcombat.com/news2005-03-28adcc-2005-6th-submission-wrestling-world-championships-just-2-months-away/|title=ADCC 2005 – 6th Submission Wrestling World Championships Just 2 Months Away!|publisher=ADCC - Submission Fighting World Federation|access-date=1 June 2016}}

• Only fighter to simultaneously hold three championship belts{{cite web|url=http://www.lowkickmma.com/Dream/Alistair-Overeem-in-the-Guinness-Book-of-World-Records-11441|title=Alistair Overeem in the Guinness Book of World Records|publisher=lowkickmma.com|date=2 January 2011}} (Strikeforce, K-1 and Dream)
• One of only two fighters to win a world championship in MMA and K-1{{cite web|url=http://mmajunkie.com/2010/12/following-k-1-grand-prix-win-alistair-overeem-wants-dynamite-2010-slot|title=Following K-1 Grand Prix win, Alistair Overeem wants "Dynamite!! 2010" slot|publisher=mmajunkie.com|author=Steven Marocco|date=13 December 2013}}

{{MMArecordbox

|draws=

|nc=1

|ko-wins=25

|sub-wins=17

|dec-wins=5

|ko-losses=15

|sub-losses=1

|dec-losses=3

|dq-wins=

|dq-losses=

|other-wins=

|other-losses=

}}

{{MMA record start}}

|{{No2}}Loss

|align=center|{{nowrap|47–19 (1)}}

|Alexander Volkov

|TKO (punches)

|UFC Fight Night: Overeem vs. Volkov

|{{dts|format=dmy|2021|February|6}}

|align=center|2

|align=center|2:06

|Las Vegas, Nevada, United States

|

|-

|{{yes2}}Win

|align=center|47–18 (1)

|Augusto Sakai

|TKO (elbows and punches)

|UFC Fight Night: Overeem vs. Sakai

|{{dts|format=dmy|2020|September|5}}

|align=center|5

|align=center|0:26

|Las Vegas, Nevada, United States

|

|-

|{{yes2}}Win

|align=center|46–18 (1)

|Walt Harris

|TKO (punches)

|UFC on ESPN: Overeem vs. Harris

|{{dts|2020|format=dmy|May|16}}

|align=center|2

|align=center|3:00

|Jacksonville, Florida, United States

|

|-

|{{no2}}Loss

|align=center|45–18 (1)

|Jairzinho Rozenstruik

|KO (punch)

|UFC on ESPN: Overeem vs. Rozenstruik

|{{dts|2019|format=dmy|December|7}}

|align=center|5

|align=center|4:56

|Washington, D.C., United States

|

|-

|{{yes2}}Win

|align=center|45–17 (1)

|Aleksei Oleinik

|TKO (punches)

|UFC Fight Night: Overeem vs. Oleinik

|{{dts|2019|format=dmy|April|20}}

|align=center|1

|align=center|4:45

|Saint Petersburg, Russia

|

|-

|{{yes2}}Win

|align=center|44–17 (1)

|Sergei Pavlovich

|TKO (punches)

|UFC Fight Night: Blaydes vs. Ngannou 2

|{{dts|2018|format=dmy|November|24}}

|align=center|1

|align=center|4:21

|Beijing, China

|

|-

|{{no2}}Loss

|align=center|43–17 (1)

|Curtis Blaydes

|TKO (elbows)

|UFC 225

|{{dts|format=dmy|2018|June|9}}

|align=center|3

|align=center|2:56

|Chicago, Illinois, United States

|

|-

|{{no2}}Loss

|align=center|43–16 (1)

|Francis Ngannou

|KO (punch)

|UFC 218

|{{dts|format=dmy|2017|December|2}}

|align=center|1

|align=center|1:42

|Detroit, Michigan, United States

|{{small|UFC Heavyweight title eliminator.}}

|-

|{{yes2}}Win

|align=center|43–15 (1)

|Fabrício Werdum

|Decision (majority)

|UFC 213

|{{dts|format=dmy|2017|July|8}}

|align=center|3

|align=center|5:00

|Las Vegas, Nevada, United States

|

|-

|{{yes2}}Win

|align=center|42–15 (1)

|Mark Hunt

|KO (knee)

|UFC 209

|{{dts|format=dmy|2017|March|4}}

|align=center|3

|align=center|1:44

|Las Vegas, Nevada, United States

|

|-

|{{no2}}Loss

|align=center|41–15 (1)

|Stipe Miocic

|KO (punches)

|UFC 203

|{{dts|format=dmy|2016|September|10}}

|align=center|1

|align=center|4:27

|Cleveland, Ohio, United States

|{{small|For the UFC Heavyweight Championship. Fight of the Night.}}

|-

|{{yes2}}Win

|align=center|41–14 (1)

|Andrei Arlovski

|TKO (front kick and punches)

|UFC Fight Night: Overeem vs. Arlovski

|{{dts|format=dmy|2016|May|8}}

|align=center|2

|align=center|1:12

|Rotterdam, Netherlands

|{{small|Performance of the Night.}}

|-

|{{yes2}}Win

|align=center|40–14 (1)

|Junior dos Santos

|TKO (punches)

|UFC on Fox: dos Anjos vs. Cowboy 2

|{{dts|format=dmy|2015|December|19}}

|align=center|2

|align=center|4:43

|Orlando, Florida, United States

|

|-

|{{yes2}}Win

|align=center|39–14 (1)

|Roy Nelson

|Decision (unanimous)

|UFC 185

|{{dts|format=dmy|2015|March|14}}

|align=center|3

|align=center|5:00

|Dallas, Texas, United States

|

|-

|{{yes2}}Win

|align=center|38–14 (1)

|Stefan Struve

|KO (punches)

|UFC on Fox: dos Santos vs. Miocic

|{{dts|format=dmy|2014|December|13}}

|align=center|1

|align=center|4:13

|Phoenix, Arizona, United States

|

|-

|{{no2}}Loss

|align=center|37–14 (1)

|Ben Rothwell

|TKO (punches)

|UFC Fight Night: Jacaré vs. Mousasi

|{{dts|format=dmy|2014|September|5}}

|align=center|1

|align=center|2:19

|Mashantucket, Connecticut, United States

|

|-

|{{yes2}}Win

|align=center|37–13 (1)

|Frank Mir

|Decision (unanimous)

|UFC 169

|{{dts|format=dmy|2014|February|1}}

|align=center|3

|align=center|5:00

|Newark, New Jersey, United States

|

|-

|{{no2}}Loss

|align=center|36–13 (1)

|Travis Browne

|KO (front kick and punches)

|UFC Fight Night: Shogun vs. Sonnen

|{{dts|format=dmy|2013|August|17}}

|align=center|1

|align=center|4:08

|Boston, Massachusetts, United States

|

|-

|{{no2}}Loss

|align=center|36–12 (1)

|Antônio Silva

|KO (punches)

|UFC 156

|{{dts|format=dmy|2013|February|2}}

|align=center|3

|align=center|0:25

|Las Vegas, Nevada, United States

|

|-

|{{yes2}}Win

|align=center|36–11 (1)

|Brock Lesnar

|TKO (kick to the body and punches)

|UFC 141

|{{dts|format=dmy|2011|December|30}}

|align=center|1

|align=center|2:26

|Las Vegas, Nevada, United States

|

|-

| {{yes2}}Win

| align=center| 35–11 (1)

| Fabrício Werdum

| Decision (unanimous)

| Strikeforce: Overeem vs. Werdum

| {{dts|format=dmy|2011|June|18}}

| align=center| 3

| align=center| 5:00

| Dallas, Texas, United States

| {{small|Strikeforce Heavyweight Grand Prix Quarterfinal. Later withdrew due to disputes with the promoter.}}

|-

| {{yes2}}Win

| align=center| 34–11 (1)

| Todd Duffee

| KO (punches)

| Dynamite!! 2010

| {{dts|format=dmy|2010|December|31}}

| align=center| 1

| align=center| 0:19

| Saitama, Japan

| {{small|Won the inaugural DREAM Heavyweight Championship.}}

|-

| {{yes2}}Win

| align=center| 33–11 (1)

| Brett Rogers

| TKO (punches)

| Strikeforce: Heavy Artillery

| {{dts|format=dmy|2010|May|15}}

| align=center| 1

| align=center| 3:40

| St. Louis, Missouri, United States

| {{small|Defended the Strikeforce Heavyweight Championship.}}

|-

| {{yes2}}Win

| align=center|32–11 (1)

| Kazuyuki Fujita

| KO (knee)

| Dynamite!! The Power of Courage 2009

| {{dts|format=dmy|2009|December|31}}

| align=center| 1

| align=center| 1:15

| Saitama, Japan

|

|-

| {{yes2}}Win

| align=center|31–11 (1)

| James Thompson

| Submission (guillotine choke)

| Dream 12

| {{dts|format=dmy|2009|October|25}}

| align=center| 1

| align=center| 0:33

| Osaka, Japan

|

|-

| {{yes2}}Win

| align=center| 30–11 (1)

| Tony Sylvester

| Submission (guillotine choke)

| Ultimate Glory 11: A Decade of Fights

| {{dts|format=dmy|2009|October|17}}

| align=center| 1

| align=center| 1:23

| Amsterdam, Netherlands

|

|-

| {{yes2}}Win

| align=center| 29–11 (1)

| Gary Goodridge

| Submission (keylock)

| Ultimate Glory 10: The Battle of Arnhem

| {{dts|format=dmy|2008|November|09}}

| align=center| 1

| align=center| 1:47

| Arnhem, Netherlands

|

|-

| {{nocontest}}NC

| align=center| 28–11 (1)

| Mirko Cro Cop

| NC (knee to the groin)

| Dream 6: Middleweight Grand Prix 2008 Final Round

| {{dts|format=dmy|2008|September|23}}

| align=center| 1

| align=center| 6:09

| Saitama, Japan

| {{small|Overeem kneed Cro Cop in the groin twice.}}

|-

| {{yes2}}Win

| align=center| 28–11

| Mark Hunt

| Submission (keylock)

| Dream 5: Lightweight Grand Prix 2008 Final Round

| {{dts|format=dmy|2008|July|21}}

| align=center| 1

| align=center| 1:11

| Osaka, Japan

|

|-

| {{yes2}}Win

| align=center| 27–11

| Tae Hyun Lee

| KO (punches)

| Dream 4: Middleweight Grand Prix 2008 Second Round

| {{dts|format=dmy|2008|June|15}}

| align=center| 1

| align=center| 0:36

| Yokohama, Japan

|

|-

| {{yes2}}Win

| align=center| 26–11

| Paul Buentello

| TKO (submission knees to the body)

| Strikeforce: Four Men Enter, One Man Survives

| {{dts|format=dmy|2007|November|16}}

| align=center| 2

| align=center| 3:42

| San Jose, California, United States

| {{small|Won the inaugural Strikeforce Heavyweight Championship.}}

|-

| {{no2}}Loss

| align=center| 25–11

| Sergei Kharitonov

| KO (punch)

| Hero's 10: Middleweight Tournament Final

| {{dts|format=dmy|2007|September|17}}

| align=center| 1

| align=center| 4:21

| Yokohama, Japan

|

|-

| {{yes2}}Win

| align=center| 25–10

| Michael Knaap

| Submission (Peruvian necktie)

| K-1 World Grand Prix 2007 in Amsterdam

| {{dts|format=dmy|2007|June|23}}

| align=center| 1

| align=center| 3:29

| Amsterdam, Netherlands

| {{small|Return to Heavyweight.}}

|-

| {{no2}}Loss

| align=center| 24–10

| Maurício Rua

| KO (punches)

| Pride 33

| {{dts|format=dmy|2007|February|24}}

| align=center| 1

| align=center| 3:37

| Las Vegas, Nevada, United States

|

|-

| {{no2}}Loss

| align=center| 24–9

| Ricardo Arona

| TKO (submission to punches)

| Pride Final Conflict Absolute

| {{dts|format=dmy|2006|September|10}}

| align=center| 1

| align=center| 4:28

| Saitama, Japan

|

|-

| {{no2}}Loss

| align=center| 24–8

| Antônio Rogério Nogueira

| TKO (corner stoppage)

| Pride Critical Countdown Absolute

| {{dts|format=dmy|2006|July|01}}

| align=center| 2

| align=center| 2:13

| Saitama, Japan

| {{small|Return to Light heavyweight.}}

|-

| {{yes2}}Win

| align=center| 24–7

| Vitor Belfort

| Decision (unanimous)

| Strikeforce: Revenge

| {{dts|format=dmy|2006|June|09}}

| align=center| 3

| align=center| 5:00

| San Jose, California, United States

| {{small|Catchweight (210 lb) bout.}}

|-

| {{no2}}Loss

| align=center| 23–7

| Fabrício Werdum

| Submission (kimura)

| Pride Total Elimination Absolute

| {{dts|format=dmy|2006|May|05}}

| align=center| 2

| align=center| 3:43

| Osaka, Japan

| {{small|PRIDE 2006 Heavyweight Grand Prix Opening Round.}}

|-

| {{yes2}}Win

| align=center| 23–6

| Nikolajus Cilkinas

| Submission (armbar)

| WCFC: No Guts, No Glory

| {{dts|format=dmy|2006|March|18}}

| align=center| 1

| align=center| 1:42

| Manchester, England

|

|-

| {{yes2}}Win

| align=center| 22–6

| Sergei Kharitonov

| TKO (knees)

| Pride 31

| {{dts|format=dmy|2006|February|26}}

| align=center| 1

| align=center| 5:13

| Saitama, Japan

| {{small|Heavyweight debut.}}

|-

| {{no2}}Loss

| align=center| 21–6

| Maurício Rua

| TKO (punches)

| Pride Final Conflict 2005

| {{dts|format=dmy|2005|August|28}}

| align=center| 1

| align=center| 6:42

| Saitama, Japan

| {{small|PRIDE 2005 Middleweight Grand Prix Semifinal.}}

|-

| {{yes2}}Win

| align=center| 21–5

| Igor Vovchanchyn

| Submission (guillotine choke)

| Pride Critical Countdown 2005

| {{dts|format=dmy|2005|June|26}}

| align=center| 1

| align=center| 1:20

| Saitama, Japan

| {{small|PRIDE 2005 Middleweight Grand Prix Quarterfinal.}}

|-

| {{yes2}}Win

| align=center| 20–5

| Vitor Belfort

| Submission (guillotine choke)

| Pride Total Elimination 2005

| {{dts|format=dmy|2005|April|23}}

| align=center| 1

| align=center| 9:36

| Osaka, Japan

| {{small|PRIDE 2005 Middleweight Grand Prix Opening Round.}}

|-

| {{no2}}Loss

| align=center| 19–5

| Antônio Rogério Nogueira

| Decision (unanimous)

| Pride 29

| {{dts|format=dmy|2005|February|20}}

| align=center| 3

| align=center| 5:00

| Saitama, Japan

|

|-

| {{yes2}}Win

| align=center| 19–4

| Hiromitsu Kanehara

| TKO (doctor stoppage)

| Pride 28

| {{dts|format=dmy|2004|October|31}}

| align=center| 2

| align=center| 3:52

| Saitama, Japan

|

|-

| {{yes2}}Win

| align=center| 18–4

| Rodney Glunder

| Submission (guillotine choke)

| 2 Hot 2 Handle

| {{dts|format=dmy|2004|October|10}}

| align=center| 1

| align=center| N/A

| Rotterdam, Netherlands

| {{small|Won the 2H2H Light heavyweight Championship.}}

|-

| {{yes2}}Win

| align=center| 17–4

| Tomohiko Hashimoto

| TKO (knees)

| Inoki Bom-Ba-Ye 2003

| {{dts|format=dmy|2003|December|31}}

| align=center| 1

| align=center| 0:36

| Kobe, Japan

|

|-

| {{no2}}Loss

| align=center| 16–4

| Chuck Liddell

| KO (punches)

| Pride Total Elimination 2003

| {{dts|format=dmy|2003|August|10}}

| align=center| 1

| align=center| 3:09

| Saitama, Japan

| {{small|PRIDE 2003 Middleweight Grand Prix Quarterfinal.}}

|-

| {{yes2}}Win

| align=center| 16–3

| Mike Bencic

| TKO (submission to knee to the body and punches)

| Pride 26

| {{dts|format=dmy|2003|June|08}}

| align=center| 1

| align=center| 3:44

| Yokohama, Japan

|

|-

| {{yes2}}Win

| align=center| 15–3

| Aaron Brink

| Submission (guillotine choke)

| 2H2H 6: Simply the Best 6

| {{dts|format=dmy|2003|March|16}}

| align=center| 1

| align=center| 0:53

| Rotterdam, Netherlands

|

|-

| {{yes2}}Win

| align=center| 14–3

| Bazigit Atajev

| TKO (knee to the body)

| Pride 24

| {{dts|format=dmy|2002|December|23}}

| align=center| 2

| align=center| 4:59

| Fukuoka, Japan

|

|-

| {{yes2}}Win

| align=center| 13–3

| Dave Vader

| TKO (doctor stoppage)

| rowspan=2|2H2H 5: Simply the Best 5

| rowspan=2|{{dts|format=dmy|2002|October|13}}

| align=center| 2

| align=center| N/A

| rowspan=2|Rotterdam, Netherlands

| {{small|Won the 2H2H Light heavyweight Tournament.}}

|-

| {{yes2}}Win

| align=center| 12–3

| Moise Rimbon

| Submission (guillotine choke)

| align=center| 1

| align=center| 1:03

| {{small|2H2H Light heavyweight Tournament Semifinal.}}

|-

| {{yes2}}Win

| align=center| 11–3

| Yusuke Imamura

| TKO (knee and punches)

| Pride The Best Vol.2

| {{dts|format=dmy|2002|July|20}}

| align=center| 1

| align=center| 0:44

| Tokyo, Japan

|

|-

| {{yes2}}Win

| align=center| 10–3

| Vesa Vuori

| TKO (punches)

| 2 Hot 2 Handle: Germany

| {{dts|format=dmy|2002|May|26}}

| align=center| 1

| align=center| 2:15

| Krefeld, Germany

|

|-

| {{yes2}}Win

| align=center| 9–3

| Sergey Kaznovsky

| Submission (armbar)

| M-1 MFC: Russia vs. the World 3

| {{dts|format=dmy|2002|April|26}}

| align=center| 1

| align=center| 3:37

| Saint Petersburg, Russia

|

|-

| {{yes2}}Win

| align=center| 8–3

| Roman Zentsov

| Submission (keylock)

| 2H2H 4: Simply the Best 4

| {{dts|format=dmy|2002|March|17}}

| align=center| 1

| align=center| 1:26

| Rotterdam, Netherlands

|

|-

| {{yes2}}Win

| align=center| 7–3

| Stanislav Nuschik

| TKO (knees)

| 2H2H 2: Simply The Best

| {{dts|format=dmy|2001|March|18}}

| align=center| 1

| align=center| 0:53

| Rotterdam, Netherlands

|

|-

| {{yes2}}Win

| align=center| 6–3

| Vladimer Chanturia

| Submission (rear-naked choke)

| Rings: King of Kings 2000 Final

| {{dts|format=dmy|2001|February|24}}

| align=center| 1

| align=center| 1:06

| Tokyo, Japan

|

|-

| {{yes2}}Win

| align=center| 5–3

| Peter Verschuren

| Submission (keylock)

| It's Showtime: Christmas Edition

| {{dts|format=dmy|2000|December|12}}

| align=center| 1

| align=center| 1:06

| Haarlem, Netherlands

|

|-

| {{no2}}Loss

| align=center| 4–3

| Bobby Hoffman

| KO (punch)

| Rings: Millennium Combine 2

| {{dts|format=dmy|2000|June|15}}

| align=center| 1

| align=center| 9:39

| Tokyo, Japan

|

|-

| {{no2}}Loss

| align=center| 4–2

| Yuriy Kochkine

| Decision (split)

| Rings Russia: Russia vs. The World

| {{dts|format=dmy|2000|May|20}}

| align=center| 2

| align=center| 5:00

| Yekaterinburg, Russia

|

|-

| {{yes2}}Win

| align=center| 4–1

| Yasuhito Namekawa

| Submission (armbar)

| Rings: Millennium Combine 1

| {{dts|format=dmy|2000|April|20}}

| align=center| 1

| align=center| 0:45

| Tokyo, Japan

|

|-

| {{yes2}}Win

| align=center| 3–1

| Can Sahinbas

| KO (knee)

| 2 Hot 2 Handle 1

| {{dts|format=dmy|2000|March|05}}

| align=center| 1

| align=center| 2:21

| Rotterdam, Netherlands

|

|-

| {{yes2}}Win

| align=center| 2–1

| Chris Watts

| KO (knee to the body)

| Rings Holland: There Can Only Be One Champion

| {{dts|format=dmy|2000|February|06}}

| align=center| 1

| align=center| 3:58

| Utrecht, Netherlands

|

|-

| {{no2}}Loss

| align=center| 1–1

| Yuriy Kochkine

| Decision (majority)

| Rings: King of Kings 1999 Block A

| {{dts|format=dmy|1999|October|28}}

| align=center| 2

| align=center| 5:00

| Tokyo, Japan

|

|-

| {{yes2}}Win

| align=center| 1–0

| Ricardo Fyeet

| Submission (guillotine choke)

| It's Showtime: It's Showtime

| {{dts|format=dmy|1999|October|24}}

| align=center| 1

| align=center| 1:39

| Haarlem, Netherlands

|

|-

{{end}}

{{Cite web|url=http://www.sherdog.com/fighter/Alistair-Overeem-461|title=Alistair|website=Sherdog|access-date=25 November 2018|archive-url=https://web.archive.org/web/20110120012730/http://www.sherdog.com/fighter/Alistair-Overeem-461|archive-date=20 January 2011|url-status=dead}}

{{Kickboxing record start|title=Kickboxing record|record=10 Wins (7 (T)KO's, 3 Decisions), 4 Losses (3 (T)KO's, 1 Decision), 1 No contest}}

|- style="background:#c5d2ea;"

|2022-10-08 || NC ||align=left|{{flagicon|MAR}} Badr Hari || Glory: Collision 4 || Arnhem, Netherlands|| No contest || 3 || 3:00 || 10–4–(1)

|-

! style=background:white colspan=9 |{{small|Originally a decision win for Overeem. Later changed to a No contest after he tested positive for performance-enhancing drugs.}}{{cite web |last1=Strobel |first1=Kevin |title=Alistair Overeem Suspended for 12 Months Over Positive Drug Test, Win Over Badr Hari Turned Into a No-Contest |url=https://beyondkick.com/news/glory-suspendeds-alistair-overeem-for-12-months-over-positive-drug-test/ |website=beyondkick.com |access-date=14 March 2023}}

|-

|- style="background:#cfc;"

|2010-12-11 || Win ||align=left|{{flagicon|NED}} Peter Aerts ||K-1 World Grand Prix 2010 Final, Final ||Tokyo, Japan ||TKO (punches) || 1 || 1:07 || 10–4

|-

! style=background:white colspan=9 |{{small|Wins the K-1 2010 World Grand Prix Championship.}}

|- style="background:#cfc;"

|2010-12-11 || Win ||align=left| {{flagicon|TUR}} Gökhan Saki ||K-1 World Grand Prix 2010 Final, semi-finals ||Tokyo, Japan ||TKO (arm injury) || 1 || 2:20 || 9–4

|- style="background:#cfc;"

|2010-12-11 || Win ||align=left|{{flagicon|SUR}} Tyrone Spong ||K-1 World Grand Prix 2010 Final, quarter-finals ||Tokyo, Japan ||Decision (unanimous) || 3 || 3:00 || 8–4

|- style="background:#cfc;"

|2010-10-02 || Win ||align=left|{{flagicon|AUS}} Ben Edwards ||K-1 World Grand Prix 2010 in Seoul Final 16 ||Seoul, South Korea ||KO (right hook) || 1 || 2:08 || 7–4

|-

! style=background:white colspan=9 |{{small|Qualifies for K-1 2010 World Grand Prix.}}

|- style="background:#cfc;"

|2010-04-03 || Win ||align=left|{{flagicon|BIH}} Dževad Poturak ||K-1 World Grand Prix 2010 in Yokohama || Yokohama, Japan || KO (right knee) || 1 || 2:40 || 6–4

|- style="background:#fbb;"

|2009-12-05 || Loss ||align=left|{{flagicon|MAR}} Badr Hari ||K-1 World Grand Prix 2009 Final, semi-finals || Yokohama, Japan ||TKO (2 knockdowns rule) || 1 || 2:14 || 5–4

|- style="background:#cfc;"

|2009-12-05 ||Win ||align=left|{{flagicon|BRA}} Ewerton Teixeira ||K-1 World Grand Prix 2009 Final, quarter-finals || Yokohama, Japan ||KO (knees) || 1 || 1:06 || 5–3

|- style="background:#cfc;"

|2009-09-26 ||Win ||align=left|{{flagicon|NED}} Peter Aerts ||K-1 World Grand Prix 2009 Final 16 || Seoul, South Korea ||Decision (unanimous) || 3 || 3:00 || 4–3

|-

! style=background:white colspan=9 |{{small|Qualifies for K-1 2009 World Grand Prix.}}

|- style="background:#fbb;"

|2009-03-28 ||Loss ||align=left|{{flagicon|NED}} Remy Bonjasky ||K-1 World GP 2009 in Yokohama || Yokohama, Japan ||Decision (unanimous) || 3 || 3:00 || 3–3

|- style="background:#cfc;"

|2008-12-31 ||Win ||align=left|{{flagicon|MAR}} Badr Hari ||Dynamite!! 2008 ||Saitama, Japan ||TKO (left hook) || 1 ||2:07 || 3–2

|- style="background:#cfc;"

|2007-05-20 ||Win ||align=left|{{flagicon|GER}} Jürgen Dolch ||Ultimate Glory 3: Upside Down ||Amersfoort, Netherlands ||KO (punch) || 1 || 2:02 || 2–2

|- style="background:#fbb;"

|2004-05-30 ||Loss ||align=left|{{flagicon|BRA}} Glaube Feitosa ||Kyokushin vs K-1 2004 All Out Battle ||Tokyo, Japan ||KO (punch) || 1 || 2:13 || 1–2

|- style="background:#fbb;"

|2001-02-04 ||Loss ||align=left|{{flagicon|NED}} Errol Parris ||K-1 Holland GP 2001 in Arnhem ||Arnhem, Netherlands ||TKO (corner stoppage) || 3 || 1:22 || 1–1

|- style="background:#cfc;"

|1999-03-14 ||Win ||align=left|{{flagicon|NED}} Paul Hordijk ||Thaiboxing Event in Veenendaal ||Veenendaal, Netherlands ||Decision (unanimous) || 3 || 2:00 || 1–0

|-

| colspan=9 | Legend: {{legend2|#CCFFCC|Win |border=1px solid #CCFFCC}} {{legend2|#FFBBBB|Loss |border=1px solid #FFBBBB}} {{legend2|#c5d2ea|Draw/No contest |border=1px solid #c5d2ea}} {{legend2|White|Notes |border=1px solid #AAAAAA}}

{{end}}

• List of male mixed martial artists
• List of male kickboxers

{{notelist}}

{{reflist|colwidth=30em}}

• [http://www.thereem.com/ Official website]
• {{UFC|alistair-overeem}}
• {{Sherdog|461}}
• [http://www.dreamofficial.com/free/fighters/detail.php?id=1212415313 Profile] at Dream {{in lang|ja}}
• [https://web.archive.org/web/20120722144048/http://www.pridefc.com/pride2005/index.php?mainpage=fighters&fID=125 Profile] at Pride

{{s-start}}

{{s-ach}}

{{s-new|Championship}}

{{s-ttl|title=1st Strikeforce Heavyweight Champion|years=16 November 2007 – 29 July 2011}}

{{s-vac|reason=Overeem stripped of title and released from Strikeforce}}

{{s-new}}

{{s-ttl|title=1st DREAM Interim Heavyweight Champion|years=31 December 2010 – 6 September 2011}}

{{s-vac|reason=Overeem signed with UFC}}

{{end}}

{{K-1 World GP Champions}}

{{Dream Championships}}

{{Strikeforce Championships}}

{{Strikeforce Heavyweight Championship}}

{{DEFAULTSORT:Overeem, Alistair}}

Category:1980 births

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