Ryunosuke Haga

{{Short description|Japanese judoka (born 1991)}}

{{Use dmy dates|date=May 2023}}

{{Infobox judoka

| name = Ryunosuke Haga

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| birth_name =

| birth_date = {{Birth date and age|1991|4|28|df=y}}

| birth_place = Miyazaki, Japan

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| height = 186 cm

| hometown = Tokyo, Japan

| coach = Kosei Inoue, Keiji Suzuki

| alma_mater = Tokai University

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| country = {{JPN}}

| weight_class = {{nbnd}}100 kg

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| dan = 4

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| club = Asahi Kasei

| retired = 20 January 2025{{cite news |title=[News/Interview] Ryunosuke Haga announces retirement from active competition: "It was a good judo career" |url=https://ejudo.info/articles/18682 |access-date=27 January 2025 |work={{ill|eJudo|ja|柔道サイト eJudo}} |date=21 January 2025 |archive-url=https://web.archive.org/web/20250121003947/https://ejudo.info/articles/18682 |archive-date=21 January 2025 |language=ja}}

| worlds_rank = 1

| worlds_year = 2015

| worlds_weight = Men's 100 kg

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| olympics_rank = 3

| olympics_year = 2016

| olympics_weight = Men's 100 kg

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{{Medal|Sport| Men's judo }}

{{Medal|Country| {{JPN}} }}

{{Medal|Competition| Olympic Games }}

{{Medal|B| 2016 Rio de Janeiro | {{nbnd}}100 kg }}

{{Medal|Competition| World Championships }}

{{Medal|G| 2015 Astana | {{nbnd}}100 kg }}

{{Medal|Competition| IJF Grand Slam }}

{{Medal|G| 2015 Tokyo | {{nbnd}}100 kg }}

{{Medal|G| 2019 Osaka | {{nbnd}}100 kg }}

{{Medal|B| 2014 Tyumen | {{nbnd}}100 kg }}

{{Medal|Competition| IJF Grand Prix }}

{{Medal|G| 2015 Düsseldorf | {{nbnd}}100 kg }}

{{Medal|G| 2017 Hohhot | {{nbnd}}100 kg }}

{{Medal|S| 2014 Budapest | {{nbnd}}100 kg }}

{{Medal|B| 2010 Qingdao | {{nbnd}}100 kg }}

{{Medal|Competition| World Juniors Championships }}

{{Medal|G| 2010 Agadir | {{nbnd}}100 kg }}

{{Medal|Competition| Summer Universiade }}

{{Medal|G| 2011 Shenzhen | {{nbnd}}100 kg }}

{{Medal|G| 2011 Shenzhen | Men's team }}

| updated = 24 May 2023

}}

{{nihongo|Ryunosuke Haga|羽賀 龍之介|Haga Ryunosuke|born 28 April 1991}} is a male Japanese retired judoka and 2015 world champion in the under 100 kg division. His favoured technique is Uchi Mata.

Born in Miyazaki, Haga started judo at the age of 5.{{cite news|publisher=Baseball Magazine Sha Co., Ltd|title=近代柔道 2015年4月号 柔道全日本強化選手名鑑 2015 -|date=2015-04-20}} He won the gold medal in the {{nbnd}}100 kg weight class at the 2010 World Juniors Championships in Agadir.

In 2011, Haga won the Shenzhen Universiade. In 2015, he won the gold medal in the Half-heavyweight (100 kg) division at the 2015 World Championships.[http://www.hochi.co.jp/sports/etc/20150829-OHT1T50277.html　【世界柔道】羽賀「金」！復活の男子100キロ級5年ぶりメダル] {{webarchive|url=https://web.archive.org/web/20150901021404/http://www.hochi.co.jp/sports/etc/20150829-OHT1T50277.html |date=1 September 2015}}　Sports Hochi　29 August 2015

Haga won the 2015 Tokyo Grand Slam and the 2015 Düsseldorf Grand Prix.{{Cite web|url = http://www.judoinside.com/event/9999/2015_Grand_Slam_Tokyo|title = Grand Slam Tokyo 2015|date = |access-date = |website = |publisher = |last = |first = }}{{Cite web|url = http://www.judoinside.com/event/1981/2015_Grand_Prix_Dusseldorf|title = Grand Prix Dusseldorf 2015|date = |access-date = |website = |publisher = |last = |first = }}

Bronze medalist in the 2016 Rio Olympics.{{cite Sports-Reference}}

Haga's father, Yoshio, was also a judoka. Like his father who was a winner of the Kodokan Cup, he won the competition in 2010 and 2011.{{cite web|url=https://www.questia.com/newspaper/1P3-3792224971/haga-on-top-of-world-at-100-kg|title="Haga on Top of World at 100 Kg" - The Daily Yomiuri (Tokyo, Japan), August 31, 2015|publisher=|access-date=February 17, 2016|archive-date=March 5, 2016|archive-url=https://web.archive.org/web/20160305001512/https://www.questia.com/newspaper/1P3-3792224971/haga-on-top-of-world-at-100-kg|url-status=dead}} Furthermore, he maintains a decade-long friendship with Ōzeki Kirishima Tetsuo, a professional sumo wrestler.{{cite web |url=https://www.nikkansports.com/battle/column/sumo/news/202403210001376.html|title=「羽賀さん」「霧ちゃん」と呼び合う仲 不振にあえぐ大関霧島を陰ながら応援するオリンピアン|date=22 March 2024|publisher=Nikkan Sports|access-date=22 March 2024|language=ja}}