Kleber Koike

RIZIN 45 live from the Saitama Super Arena in Saitama, Japan. The main event will be a bantamweight title showdown between Juan Archuleta and Kai Asakura. American athlete “The Spaniard” Archuleta picked up the RIZIN title earlier this year and is now looking to add his first title defense. Additionally, the 36-year-old athlete is a former Bellator MMA world champion. Japan’s Kai Asakura is a fan favorite. He and his brother are known for their exciting and tactical style of fighting. Throughout his career, the majority of his wins were captured by way of knockout or TKO. Asakura is coming off a of knockout by way of a knee to the body to earn his title shot.

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

RIZIN 26 live from the Saitama Super Arena in Saitama, Japan. The bill is topped by a highly anticipated rematch between current Rizin bantamweight kingpin Kai Asakura and former titleholder Kyoji Horiguchi. The two first met in a non-title affair when Horiguchi held both the Rizin and Bellator gold. Asakura finished the former UFC flyweight in just over a minute. The rivals were set to fight again at the New Year’s Eve show last year, but a leg injury forced Horiguchi to the sidelines and set the table for a title bout between Asakura and Manel Kape. Kape left with the strap, but it eventually found its way back to Asakura. Now, Horiguchi hopes to not only avenge his prior loss, but regain the belt he was forced to vacate.

RIZIN 27 live from the Nippon Haishi Hall in Nagoya, Japan. The spotlight shines on Rizin women’s atomweight champion Ayaka Hamasaki. The 38-year-old Invicta and Deep Jewels veteran is among the best 105-pound ladies to ever grace a ring or cage, and she has yet to slow down. Hamasaki is 21-3 in more than 11 years of action. Two of her losses came in strawweight affairs against Claudia Gadelha and Livinha Souza. Her third stumble came in a recent trilogy fight with perhaps the only woman that can be considered her equal, Seo Hee Ham. Now, Hamasaki puts her belt on the line in a rematch against Kanna Asakura.

Witness the Fight Card of the Decade! Celebrate 10 years of Japan's RIZIN Fighting Federation's spectacular martial arts legacy with the ultimate year-end event! This is more than a fight card—it’s a night of champions, legends, and rising stars.

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 43 live from the Makomanai Sekisui Heim Arena in Sapporo, Japan. The event has been somewhat overshadowed by the colossal Rizin vs Bellator 2 event just around the corner. While not having the star power of the July’s copromotion Rizin’s inaugural venture into Hokkaido is stacked with intriguing, well matched fights that promise a bit of everything. 13 matches grace the main card with an additional 4 preliminaries, showcasing the caliber of fighters fans have come to expect.

Kyoji Horiguchi faces former Bellator champion Sergio Pettis in a revenge match!

RIZIN 44 live from Saitama Super Arena, Japan. The fight card has well over 11 matches and will have Juntarou Ushiku vs Kyohei Hagiwara as main event of the evening, finishing the entire lineup with a bang!

Notable RIZIN names Yusuke Yachi and Tsuyoshi Sudario were among the 14 names announced for RIZIN 39 on Wednesday. The new matchups are joining a card that take place on October 23rd at the Marine Messe Fukuoka Hall A in Fukuoka, Japan. Yachi will have a tough challenge in his attempt to snap a losing streak. He is being paired up against South African lightweight talent Boyd Allen, who will be fighting in the promotion for the first time. Allen has a pro record that includes 16 wins through 21 appearances. He has fought numerous times in notable regional promotion EFC since 2012.

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

On May 4th, RIZIN Otoko Matsuri storms back into the iconic Tokyo Dome, delivering a night of high-stakes showdowns and unforgettable drama. Headlining the event, featherweight champion Kleber Koike puts his belt on the line against undefeated Kyrgyz sensation Razhabali Shaidulloev, a rising powerhouse with fight-ending power. The co-main event features the electrifying return of Mikuru Asakura, who steps into the ring against former champion Chihiro Suzuki in a battle between two of Japan’s biggest stars. Adding to the spectacle, RIZIN’s first Heavyweight Grand Prix in nearly a decade kicks off, promising chaos, knockouts, and the birth of a new heavyweight king.

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.

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.