Rizin 31: Saito vs. Ushiku is an upcoming mixed martial arts event scheduled for October 24, 2021 at the Pia Arena in Yokohama, Japan.
Fight Card
Main Card
Featherweight 66 kg Japan Yutaka Saito (c) vs. Japan Juntaro Ushiku Featherweight Championship
Women's Super Atomweight 49 kg Japan Kanna Asakura vs. Japan Saori Oshima
Heavyweight 120 kg Japan Tsuyoshi Sudario vs. United States Saint
Featherweight 66 kg Japan Masanori Kanehara vs. Japan Takahiro Ashida
Intermission
Lightweight 71 kg Japan Daichi Abe vs. Japan Akira Okada
Featherweight 66 kg Japan Daisuke Nakamura vs. Japan Suguru Nii
Featherweight 66 kg Japan Rikuto Shirakawa vs. Japan Takuya Yamamoto
Catchweight 53.5 kg Japan Nadaka Yoshinari vs. Japan Naoki Ishikawa Kickboxing
Flyweight 57 kg Japan Yusaku Nakamura vs. Japan Yuki Ito
Flyweight 57 kg Japan Seiichiro Ito vs. Japan Kunta Hashimoto
Catchweight 51 kg Japan Ryuya Okuwaki vs. Japan Ryuto Oinuma Kickboxing
Background
A featherweight title fight between the reigning champion Yutaka Saito and title challenger Juntaro Ushiku was scheduled as the event headliner.
An women's super atomweight bout between the reigning Jewels atomweight and DEEP Microweight champion Saori Oshima and the two-time Rizin FF atomweight title challenger Kanna Asakura was announced for the event.
Rizin-regular Tsuyoshi Sudario was scheduled to face Saint in a heavyweight bout.