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Razhabali Shaidulloev vs. Mikuru Asakura, RIZIN Super Powerhouse Festival weigh-in Credit: RIZIN FF
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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) vs. Mikuru Asakura – For the RIZIN Featherweight Championship
Roberto de Souza (c) vs. Ilkhom Nozimov – For the RIZIN Lightweight championship
Intermission
Hiromasa Ougikubo vs. Yuki Motoya – 2025 RIZIN Flyweight Grand Prix Final / For the vacant RIZIN Flyweight championship
Naoki Inoue (c) vs. Danny Sabatello – For the Rizin Bantamweight championship
Seika Izawa (c) vs. Rena Kubota – For the RIZIN Super Atomweight championship
Kleber Koike Erbst vs. Vugar Karamov
Intermission
Ryuya Fukuda vs. Tatsuya Ando
Kyoma Akimoto vs. Suguru Nii
Karshyga Dautbek vs. Yuta Kubo
Makoto Takahashi vs. Hiroya Kondo
Joji Goto vs. Jose Torres
Tatsuki Shinotsuka vs. Daichi Tomizawa
Tatsuya Saika vs. BeyNoah
Ryusei Ashizawa vs. Ryoma Shishimoto
Opening Ceremony
Yuri Suda vs. Enzo Massami Iamazato
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