Bantamweight3 rounds scheduled
RESULT
Genji Umeno def. Ryusei Ashizawa (Unanimous Decision)
Unanimous Decision · Round 3 · 5:00
2-4-0
Sunday, September 28, 2025
Aichi International (IG) Arena, Nagoya, Japan
Genji Umeno defeated Ryusei Ashizawa by Unanimous Decision in round 3 (5:00) in the Bantamweight bout of Rizin FF - Rizin 51, held Sunday, September 28, 2025 at Aichi International (IG) Arena, Nagoya.
Betting Odds
Genji Umeno
-121
55% implied win probability
Open: -147Best: -110
Ryusei Ashizawa
-109
52% implied win probability
Open: +113Best: -102
Average moneyline across 5 sportsbooks.
| Sportsbook | Genji Umeno | Ryusei Ashizawa |
|---|---|---|
| BetOnline | -118 | -102 |
| Betway | -110 | -120 |
| Bovada | -125 | -105 |
| MyBookie | -126 | -109 |
| Stake | -127 | -110 |
Odds are for information only. · Odds data: fightodds.io
Frequently asked questions
Who won Genji Umeno vs Ryusei Ashizawa?
Genji Umeno defeated Ryusei Ashizawa by Unanimous Decision in round 3 (5:00) in the Bantamweight bout of Rizin FF - Rizin 51, held Sunday, September 28, 2025 at Aichi International (IG) Arena, Nagoya.
Referee
Tatsuro Nagase
Pre-fight comparison▾
Win probability
Genji Umeno 55%45% Ryusei Ashizawa
What the model gave each fighter going into the fight, from their pre-fight UFCalendar Power Index ratings. See the full Power Index
Tale of the Tape
2-2-0
Record
2-4-0
1578
Power Index rating
1543
0
Win Streak
0
37
Age
31
5'11"
180 cm
Height
5'9"
175 cm
69"
175 cm
Reach
-
-
Stance
-
Bantamweight
Weight Class
Bantamweight
Japan
Nationality
Japan
Striking Profile
-
SLpM
-
-
Str. Acc.
-
-
SApM
-
-
Str. Def.
-
Grappling Profile
-
TD Avg.
-
-
TD Acc.
-
-
TD Def.
-
-
Sub. Avg.
-
Recent form (last 5 fights)
Genji Umeno · 3-2
Ryusei Ashizawa · 2-3
Common Opponents
Genji Umeno
Ryusei Ashizawa