Ryujin Nasukawa

Ryujin Nasukawa (born May 16, 2006) is a Japanese kickboxer. He is the reigning ISKA K-1 World Strawweight champion and former RISE Flyweight (-51.5 kg) champion.

As of October 2024, he was the #10 ranked -53 kg kickboxer in the world according to Beyond Kickboxing.

Kickboxing career Early career Nasukawa made his professional debut on April 4, 2022, at RISE ELDORADO 2022 where he defeated Naoki Kasahara by unanimous decision.

For his second professional fight Nasukawa was scheduled to face Rui Okubo on the exceptional card THE MATCH 2022 on June 19, 2022, at the Tokyo Dome. Nasukawa lost the fight by unanimous decision.

Nasukawa took part in a four-man one night tournament called "New Warriors" on February 23, 2023, at RISE 166. In the semifinals he faced Momu Tsukamoto who defeated him by unanimous decision.

On August 26, 2023, Nasukawa faced Jin at RISE WORLD SERIES 2023 - 2nd Round. He won the fight by unanimous decision.

On December 16, 2023, Nasukawa faced Ryutaro at RISE WORLD SERIES 2023 Final Round. He won the fight by doctor stoppage in the third round.

On March 17, 2024, Nasukawa faced Tenshi Matsumoto at RISE ELDORADO 2024. He won the fight by unanimous decision.

On June 15, 2024, Nasukawa faced Momu Tsukamoto at RISE WORLD SERIES 2024 OSAKA. He won the fight by spit decision.

RISE Flyweight champion Nasukawa was scheduled to challenge Riku Kazushima for his RISE Flyweight title on November 23, 2024, at RISE 183.

Nasukawa faced Petmai MC.SuperlekMuaythai at RISE WORLD SERIES 2024 Final on December 21, 2024. He won the fight by a second-round knockout.

Nasukawa faced Hamada Azmani for the inaugural ISKA K-1 World Strawweight (-51.5 kg) title at RISE WORLD SERIES 2025 Yokohama on June 21, 2025. He won the fight by unanimous decision to capture the title.

Nasukawa moved up to super flyweight (-53 kg) to face the #1 ranked RISE super flyweight contender Jin Mandokoro at RISE WORLD SERIES 2025 Tokyo on August 2, 2025. He won the fight by unanimous decision.

Nasukawa faced Yuto Uemura at RISE 195 on January 18, 2026. He won the fight by a first-round technical knockout.

Mixed martial arts career Nasukawa made his mixed martial arts debut at Rizin 45 on December 31, 2023, against Jongmin Shin. He won the fight by second-round knockout.

Titles and accomplishments Professional RISE 2024 RISE Flyweight (-51.5 kg) Champion 2024 RISE Fighter of the Year 2025 RISE Knockout of the Year (vs. Kumandoi Petchyindee Academy) 2026 RISE Super Flyweight (-53 kg) Champion International Sport Kickboxing Association 2025 ISKA K-1 World Strawweight (-51.5 kg) Champion

Awards efight.jp Fighter of the Month (November 2024)

Amateur 2015 Amateur Dageki Kakutougi Japan Cup K-4 Tournament Runner-up 2016 Shin Karate Tokyo Tournament Elementary School Winner 2016 Amateur Dageki Kakutougi Japan Cup K-4 Tournament Third Place 2016 NJKF Explosion -31 kg Champion 2017 Bigbang -34 kg Champion 2017 KAMINARIMON All Japan Tournament -35 kg Champion 2018 NJKF Explosion -34 kg Champion 2018 Shootboxing All Japan Tournament -40 kg Champion 2018 RIZIN x KAMINARIMON Junior Tournament -35 kg runner-up 2019 NJKF Explosion Elementary School -40 kg Champion 2019 Bigbang -40 kg Champion 2019 Bigbang -45 kg Champion 2021 RISE NOVA Junior A-class -50 kg Tournament Winner 2021 Amateur Dageki Kakutougi Japan Cup Middle School -50 kg Champion 2021 RISE NOVA All Japan Tournament -55 kg Champion 2021 Stand Up Kickboxing A-class -45 kg Champion

Mixed martial arts record Win

Jongmin Shin TKO (punches) Rizin 45

Saitama, Japan

Kickboxing record

Amateur record 2021-12-26 Win Takumi Hoshi 2021 Stand up Kickboxing Amateur Championship, Final Tokyo, Japan Decision (Majority) 1 3:00 2021-12-26 Win Hiroto Hayashi 2021 Stand up Kickboxing Amateur Championship, Semifinals Tokyo, Japan Decision (Unanimous) 1 3:00 2021-12-05 Win Takumi Hoshi RISE NOVA All Japan Championship, Final Tokyo, Japan Decision (Unanimous)2 2:00 2021-12-05 Win Yuto Nomura RISE NOVA All Japan Championship, Semifinals Tokyo, Japan Decision (Majority)1 3:00 2021-12-05 Win Ryunosuke Ito RISE NOVA All Japan Championship, Quarterfinals Tokyo, Japan Decision (Unanimous)1 3:00 2021-09-23 Win Tensuke Yamazaki RISE WORLD SERIES 2021 Yokohama Yokohama, Japan Decision (Unanimous)2 2:00 2021-08-08 Win Kizuna Morikawa Stand up Amateur in TOKYO vol.5 Tokyo, Japan Decision (Unanimous) 1 2:00 2021-07-04 Win Yuto Wada DEEP☆KICK 54 Osaka, Japan Decision (Unanimous) 3 1:00 2021-03-20 Win Reo Tsukada Amateur Dageki Kakutougi Japan Cup 2021, Final Tokyo, Japan Decision (Unanimous) 1 2:00 2021-03-20 Win Shikou Chinen Amateur Dageki Kakutougi Japan Cup 2021, Semifinals Tokyo, Japan Decision 1 2:00 2021-02-07 Win Ryusei Suzuki RISE NOVA, Final Tokyo, Japan Decision (Unanimous) 2 2:00 2021-02-07 Win Jo Aizawa RISE NOVA, Semifinals Tokyo, Japan Decision (Unanimous) 2 2:00 2021-02-07 Win Ryuki Kawano RISE NOVA, Quarterfinals Tokyo, Japan Decision (Unanimous) 2 2:00 2020-12-13 Loss Momu Tsukamoto DEEP KICK 48-49 Osaka, Japan Decision (Unanimous) 3 1:30 2020-10-03 Win Takumi Hoshi RISE NOVA Tokyo, Japan Decision (Majority) 2 2:00 2020-10-04 Draw Minato Yamazaki RISE NOVA Tokyo, Japan Decision 2 2:00 2020-07-26 Loss Sento Ito DEEP KICK 44 Osaka, Japan Decision (Unanimous) 2 2:00 2020-02-02 Loss Riku Otsu KAMINARIMON Tokyo, Japan Decision (Unanimous) 2 2:00 2019-11-24 Loss Sento Ito DEEP KICK 41 Osaka, Japan Decision (Unanimous) 2 2:00 2019-10-06 Win Sakura Soga KAMINARIMON Tokyo, Japan KO 2 2019-10-06 Win Osuke Seki KAMINARIMON Tokyo, Japan TKO (Punches) 2 2019-09-08 Yuto Nagasu Bigbang Amateur Tokyo, Japan 2019-09-08 Tsubasa Nio Bigbang Amateur Tokyo, Japan 2019-08-04 Win Teito Uchida KAMINARIMON Tokyo, Japan Decision (Unanimous) 2019-08-04 Win Kanenao Sugimoto KAMINARIMON Tokyo, Japan Decision (Unanimous) 2019-07-14 Toki Oshika Bigbang Amateur Tokyo, Japan 2019-05-12 Draw Toki Oshika KAMINARIMON Tokyo, Japan Decision 2 2:00 2019-04-14 Win Yuushin Kikuma KAMINARIMON Tokyo, Japan Decision (Unanimous) 2019-03-11 Win 6th World Muay Boran Federation Amateur Championship Thailand Decision 3 1:00 2019-02-24 Draw Retsuki Oshika KAMINARIMON Tokyo, Japan Decision 2019-01-20 Win Masato Shigano NJKF EXPLOSION 19 Tokyo, Japan Decision 3 1:00 2018-12-30 Loss Riamu Matsumoto RIZIN x KAMINARIMON Junior -35 kg Tournament, Final Tokyo, Japan Ext.R Decision (Unanimous) 2018-12-30 Win Kaoru Kitaguni RIZIN x KAMINARIMON Junior -35 kg Tournament, Semifinals Tokyo, Japan Decision (Unanimous) 2018-12-30 Win Aiki Oshika RIZIN x KAMINARIMON Junior -35 kg Tournament, Quarterfinals Tokyo, Japan Decision (Unanimous) 2018-12-16 Win Kohaku Yokoyama Shootboxing All Japan Amateur 2018 in Hanayashiki, Final Tokyo, Japan Decision 2018-12-16 Win Reo Hendo Shootboxing All Japan Amateur 2018 in Hanayashiki, Semi Final Tokyo, Japan Decision 2018-12-02 Loss Shoki Hoshikubo KAMINARIMON All Japan Tournament, -40 kg Semi Final Tokyo, Japan Decision (Unanimous) 2018-10-21 Draw Tsubasa Nio KAMINARIMON Tokyo, Japan Decision 2018-08-05 Draw Minato Yamazaki KAMINARIMON Tokyo, Japan Decision 2018-07-15 Loss Riamu Matsumoto Bigbang Amateur Tokyo, Japan Decision (Unanimous) 2 1:30 2018-06-03 Win Kaoru Kitaguni RISE ZERO KAMINARIMON Tokyo, Japan Decision (Majority) 2018-05-12 Draw Aiki Oshika KAMINARIMON Tokyo, Japan Decision 2018-04-08 Win Tesshin Takeda Bigbang Amateur Tokyo, Japan Decision 2 1:30 2018-03-04 Win Isana Sato BOUT 31 Sapporo, Japan Decision (Unanimous) 2 1:30 2018-02-18 Draw Ryuma Nagai Bigbang Amateur Tokyo, Japan Decision 3 1:30 2018-02-04 Win Raisei Hakkaku NJKF EXPLOSION 14 Tokyo, Japan Decision 2 1:30 2017-12-10 Win Shota Kunioka KAMINARIMON All Japan 35 kg Tournament, Final Tokyo, Japan Decision (Split) 2017-12-10 Win Kaoru Kitaguni KAMINARIMON All Japan 35 kg Tournament, Semifinals Tokyo, Japan Decision (Unanimous) 2017-12-10 Win Kai Wakahara KAMINARIMON All Japan 35 kg Tournament, Quarterfinals Tokyo, Japan Decision (Unanimous) 2017-12-03 Win Ryuma Nagai Bigbang Amateur Tokyo, Japan Decision 3 1:30 2017-10-01 Win Tsugumi Hirai KAMINARIMON Tokyo, Japan Decision (Unanimous) 2 2:00 2017-09-03 Win Takumi Ishiwara Bigbang Amateur Tokyo, Japan Decision 3 1:30 2017-08-06 Win Yuta Shibasaki KAMINARIMON Tokyo, Japan Decision 2 2:00 2017-08-06 Win Tsugumi Hirai KAMINARIMON Tokyo, Japan Decision (Unanimous) 2 2:00 2017-07-09 Win Kosuke Ikegami Bigbang Amateur Tokyo, Japan Decision (Unanimous) 2 1:30 2017-07-02 Loss Aiki Oshika NJKF EXPLOSION 11 Tokyo, Japan Decision 3 1:30 2017-06-04 Win Kou Osano KAMINARIMON Tokyo, Japan Decision (Unanimous) 2017-06-04 Draw Yoshiaki Kikuchi KAMINARIMON Tokyo, Japan Decision (Unanimous) 2016-07-10 Draw Koshi Soga Bigbang Amateur Tokyo, Japan Decision (Unanimous) 2 1:30 2016-04-09 Win Sei Aizawa KAMINARIMON Tokyo, Japan Decision (Unanimous) 2017-04-02 Win Sora Sugiyama Bigbang Amateur Tokyo, Japan Decision (Unanimous) 2 1:30 2017-02-12 Loss Ryoma Nagai NJKF EXPLOSION 11 Tokyo, Japan Decision 3 1:30 2016-10-30 Win Kairen Takahashi NJKF EXPLOSION 7 Tokyo, Japan Decision 2 1:00 2016-10-09 Loss Toki Oshika KAMINARIMON Tokyo, Japan Decision (Unanimous) 2 2:00 2016-07-23 Loss Taisei Nakano 2nd WBC Muay Thai Jr League Tournament, Semifinals Tokyo, Japan Decision 2016-07-10 Win Kiryu Murai Bigbang Amateur 35 Tokyo, Japan Decision (Unanimous) 2 1:30 2016-07-10 Draw Koshi Soga Bigbang Amateur 35 Tokyo, Japan Decision 2 1:30 2016-06-12 Win Natsuki Kawaura KAMINARIMON Tokyo, Japan Decision (Unanimous) 2016-06-05 Win Aino Baba REBELS Amateur Tokyo, Japan Decision (Unanimous) 2016-06-05 Draw Kaoru Kitaguni REBELS Amateur Tokyo, Japan Decision 2016-05-15 Win Ryoma Nagai NJKF EXPLOSION 5 - Championship Tournament, Final Tokyo, Japan Decision 2 1:30 2016-05-15 Win Wakabayashi NJKF EXPLOSION 5 - Championship Tournament, SemifInals Tokyo, Japan Decision 2 1:30 2016-04-17 Win Toranosuke Uesaka KAMINARIMON Tokyo, Japan Decision (Unanimous) Legend: