RIZIN 31October 24, 2021PromotionRIZIN Fighting FederationVenuePia Arena MM (ぴあありーなMM)LocationYokohama, Kanagawa, JapanNumber of bouts11
Main CardPrediction ModeMain CardFeatherweight Championship3 roundsJUWJuntarou Ushiku19-8-1Featherweight Championship3 roundsVSKO/TKO, Doctor Stoppage (cut by Knee) | R2 · 4:26YSYutaka Saito20-4-2Atomweight Bout3 roundsSOWSaori Oshima6-2-0Atomweight Bout3 roundsVSSplit DecisionKAKanna Asakura18-5-0Heavyweight Bout3 roundsTSWTsuyoshi Sudario3-1-0Heavyweight Bout3 roundsVSKO/TKO, Left Hook | R1 · 1:51LS"Saint"Lawdlain Saint Ilme2-0-0Featherweight Bout3 roundsMKWMasanori Kanehara27-14-5Featherweight Bout3 roundsVSKO/TKO, Ground and Pound | R2 · 1:18TATakahiro Ashida24-10-2Lightweight Bout3 roundsAOWAkira Okada15-8-4Lightweight Bout3 roundsVSSubmission, North South Choke | R2 · 4:34DADaichi Abe9-4-0Featherweight Bout3 roundsDNWDaisuke Nakamura30-20-1Featherweight Bout3 roundsVSSubmission, Armbar | R1 · 2:16SN"Konbaouji"Suguru Nii12-10-0Featherweight Bout3 roundsRSWRikuto Shirakawa10-8-1Featherweight Bout3 roundsVSKO/TKO, Soccer Kick | R1 · 3:48TYTakuya Yamamoto7-1-1Bout3 roundsNYWNadaka Yoshinari4-0-0Bout3 roundsVSKO/TKO, Right Hook | R1 · 2:30NINaoki Ishikawa3-4-2Flyweight Bout3 roundsYIWYuki Ito8-2-0Flyweight Bout3 roundsVSKO/TKO, Ground and Pound | R1 · 4:52YNYusaku Nakamura16-8-1Flyweight Bout3 roundsSIWSeiichiro Ito13-4-2Flyweight Bout3 roundsVSSubmission, Rear Naked Choke | R2 · 4:07KHKunta Hashimoto7-1-0Bout3 roundsROWRyuya Okuwaki2-0-1Bout3 roundsVSMajority DecisionRORyuto Oinuma1-3-0