RIZIN 31
- PromotionRIZIN Fighting Federation
- VenuePia Arena MM (ぴあありーなMM)
- LocationYokohama, Kanagawa, Japan
- Number of bouts11
Main Card
Juntarou Ushiku
19-8-1
Featherweight championship
Main Event | 3 x 5
VS
KO/TKO, Doctor Stoppage (cut by Knee) | R2 · 4:26Yutaka Saito
20-4-2
Tsuyoshi Sudario
3-1-0
Heavyweight bout
3 x 5
VS
KO/TKO, Left Hook | R1 · 1:51"Saint"
Lawdlain Saint Ilme
2-0-0
Masanori Kanehara
27-14-5
Featherweight bout
3 x 5
VS
KO/TKO, Ground and Pound | R2 · 1:18Takahiro Ashida
24-10-2
Daisuke Nakamura
30-20-1
Featherweight bout
3 x 5
VS
Submission, Armbar | R1 · 2:16"Konbaouji"
Suguru Nii
12-10-0
Seiichiro Ito
13-4-2
Flyweight bout
3 x 5
VS
Submission, Rear Naked Choke | R2 · 4:07Kunta Hashimoto
7-1-0