RIZIN 10th Anniversary Super Powerhouse Festival Full Results

It was to have been headlined by Ryan Bader making his promotional debut and looking to claim heavyweight gold. In the wake of Bader withdrawing due to injury, however, RIZIN’s annual New Year’s Eve show, the promotion’s 10th Anniversary, still featured a full five title fights.

Among those, a headlining bout featuring Mikuru Asakura (brother of UFC’s Kai Asakura), oooking to claim featherweight gold opposite champ Razhabali Shaydullaev. In the co-headliner, long-serving lightweight champ Roberto “Satoshi” de Souza put his belt on the line against Ilkhom Nozimov. RIZIN’s flyweight grand prix wrapped with the vacant title on the line between TUF vet Hiromasa Ougikubo and Yuki Motoya, while Bellator motormouth Danny Sabatello looked to claim bantamweight gold against champion Naoki Inoue.

Rounding out the five-pack of title fights, undefeated super atomweight champ Seika Izawa faced off against Rena Kubota.

Where to Watch RIZIN Super Powerhouse Festival

December 31, 2025 was the landing spot for RIZIN’s 10th Anniversary show, taking place at the Saitama Super Arena in Saitama, Japan. The event is available to stream via RIZIN.tv; full results can be found below. The broadcast goes live at 11PM ET, 8PM PT.

RIZIN 10th Anniversary Super Powerhouse Festival Results

Razhabali Shaydullaev (c) def. Mikuru Asakura by TKO (punches), Round 1, 2:54 – For the RIZIN Featherweight Championship

Ilkhom Nozimov def. Roberto de Souza (c) by KO (knee and punch), Round 1, 0:13 – For the RIZIN Lightweight championship

Intermission 

Hiromasa Ougikubo def. Yuki Motoya by unanimous decision – 2025 RIZIN Flyweight Grand Prix Final / For the vacant RIZIN Flyweight championship

Danny Sabatello def. Naoki Inoue (c) by unanimous decision – For the Rizin Bantamweight championship

Seika Izawa (c) def. Rena Kubota by submission (guillotine), Round 2, 1:58 – For the RIZIN Super Atomweight championship

Kleber Koike Erbst def. Vugar Karamov by unanimous decision

Intermission 

Ryuya Fukuda def. Tatsuya Ando by KO (head stomp and punches), Round 2, 3:02

Kyoma Akimoto def. Suguru Nii by KO (knee to body), Round 1, 3:44

Karshyga Dautbek vs. Yuta Kubo ends in a No Contest (accidental eye poke), Round 1, 3:15

Makoto Shinryu def. Hiroya Kondo by unanimous decision

Joji Goto def. Jose Torres by split decision

Tatsuki Shinotsuka def. Daichi Tomizawa by KO (punches), Round 2, 3:22

Tatsuya Saika def. BeyNoah by KO (head kick), Round 1, 0:32

Ryoma Shishimoto def. Ryusei Ashizawa by submisssion (arm-bar), Round 1, 0:25

Opening Ceremony

Enzo Massami Iamazato def. Yuri Suda by submission (arm-bar), Round 1, 3:15