Hiromasa Ougikubo
Acting
Known For

The next generation of UFC stars are produced in an intense elimination tournament that separates the contenders from the pretenders.
The Ultimate Fighter

SUPER RIZIN.4 takes place on July 27, 2025, at Saitama Super Arena (Stadium Version) in Saitama, Japan. The main event features Mikuru Asakura taking on Kleber Koike. The card also includes Naoki Inoue facing Ryuya Fukuda for the RIZIN Bantamweight title. Inoue, a 28-year-old submission expert, clashes with 31-year-old DEEP two-division champion Fukuda.
Super RIZIN 4

RIZIN 28 will mark RIZIN's first event at the Tokyo Dome in Tokyo, Japan. Undefeated kickboxing star Tenshin Nasukawa will fight one bout against three separate opponents and the bantamweight grand prix will get underway, all at RIZIN 28. The show also features a featherweight contest between Mikura Asakura and Kleber Koike Erbst and a clash for the vacant Rizin lightweight world title between Tofiq Musayev and Roberto de Souza.
RIZIN 28

RIZIN 11 live from the Saitama Super Arena in Saitama, Japan. The main event of the evening is a much-anticipated rematch between Rizin women’s super atomweight grand-prix winner Kanna Asakura and highly decorated Shoot Boxing champion Rena “RENA” Kubota. In addition to the headliner, The Ultimate Fighter 24 finalist and current Shooto world champion Hiromasa Ogikubo gets his chance for redemption against Japanese superstar Kyoji Horiguchi.
RIZIN 11

RIZIN 23 serves to crown a new bantamweight champion when Hiromasa Ougikubo meets Kai Asakura in the headliner. The undercard is full of prospects, including Kazumasa Majima, Makoto Takahashi and Tatsuki Saomoto. Kickboxing fans will be treated to a rematch between Taiga and Kento Haraguchi, plus the return of KAITO.
RIZIN 23

RIZIN 17 live from the Saitama Super Arena in Saitama, Japan. In the evening’s main event, lightweights Yusuke Yachi and Mikuru Asakura lock horns. Also the card, numerous UFC veterans are in action as Ulka Sasaki takes on longtime veteran Shintaro Ishiwatari, Ultimate Fighter 24 runner-up Hiromasa Ogikubo clashes with Yuki Motoya, Johnny Case challenges Satoru Kitaoka, Tatsuya Kawajiri battles unbeaten Russian Ali Abdulkhalikov, Mizuto Hirota faces off with grappling ace Roberto de Souza, and UFC veteran and current ROAD FC champion Seo Hee Ham meets Tomo Maesawa.
RIZIN 17

On July 30th Super RIZIN 2 is live from Saitama Super Arena in Japan. The fight card has well over 8 matches, 3 of them are with titles on the line and will have Mikuru Asakura vs Vugar Karamov fighting for the RIZIN Featherweight Title as main event of the evening, finishing the entire lineup with a bang!
Super RIZIN 2

The final event of 2019 is here, and per usual it’s being held by RIZIN Fighting Federation!
RIZIN 20

RIZIN 51 took place on September 28, 2025 at IG Arena in Nagoya, Japan.
RIZIN 51

RIZIN returns to Osaka, Japan, for RIZIN.25, which is headlined by a title bout featuring Mikuru Asakura and Yutaka Saito for the RIZIN featherweight championship. Asakura is riding an eight-fight winning streak and has compiled a 7-0 record within the Rizin organization. Now, he prepares for the biggest fight of his career in an effort to capture the Rizin gold. His opponent, Saito, is a seasoned MMA veteran who has compiled an 18-4-2 record and is coming off a devastating knockout victory via soccer kicks over Kazumasa Majima. He plans to play spoiler and hand Asakura his first defeat in the promotion while capturing the league’s featherweight championship in the process.
RIZIN 25

RIZIN 40 was a mixed martial arts event that took place on Saturday, December 31, 2022 at the Saitama Super Arena in Saitama, Japan.
RIZIN 40

RIZIN 38 live from the Saitama Super Arena in Saitama, Japan. The event includes the continuation of their Super Atomweight Grand Prix and Hiromasa Ougikubo’s first appearance since winning a bantamweight tournament last year. In what is the biggest return of the night, RIZIN Bantamweight Champion Kyoji Horiguchi fights in Japan for the first time since late 2020, facing Kintaro in the main event.
RIZIN 38

Bellator MMA x Rizin 2 and Super Rizin 2 was a mixed martial arts event being co-promoted by Bellator MMA and the Rizin Fighting Federation that took place on July 30, 2023, at the Saitama Super Arena in Saitama, Japan. A Bellator Lightweight World Grand Prix quarterfinal bout between former Bellator Featherweight Champion A. J. McKee and former Bellator Lightweight Champion Patricky Pitbull was scheduled to headline the event. However, on July 26, it was announced McKee had pulled out of the bout due to medical issues and was replaced by current Rizin Lightweight Champion Roberto de Souza at a catchweight of 161 pounds.[
Bellator MMA x RIZIN 2

RIZIN.33 was a major New Year's Eve MMA event on December 31, 2021, at Saitama Super Arena, headlined by the RIZIN Bantamweight Grand Prix Final and featured major stars like Tenshin Nasukawa's final RIZIN fight against Gomi, plus title bouts and popular matchups, wrapping up RIZIN's 2021 season.
RIZIN 33

In Tokyo's Saitama Super Arena, RIZIN warriors clash on December 31 for 師走の超強者祭り. Featherweight contender Shaydullaev meets Mikuru Asakura in a title fight. Bantamweight rivals Naoki Inoue and Danny Sabatello battle. Atomweight stars Seika Izawa and RENA fight for supremacy. Lightweight champion Roberto "Satoshi" Souza defends against Shunta Nomura.