108 lb Catchweight3 rounds scheduled
RESULT
Seika Izawa def. Rena Kubota (Submission)
Submission · Round 2 · 1:58
15-6-0
Wednesday, December 31, 2025
Saitama Super Arena, Saitama, Japan
Seika Izawa defeated Rena Kubota by Submission in round 2 (1:58) in the 108 lb Catchweight bout of Rizin FF - Shiwasu no Cho Tsuwamono Matsuri, held Wednesday, December 31, 2025 at Saitama Super Arena, Saitama.
Betting Odds
Seika Izawa
-2649
96% implied win probability
Open: -1936Best: -2500
Rena Kubota
+936
10% implied win probability
Open: +778Best: +1300
Average moneyline across 5 sportsbooks.
| Sportsbook | Seika Izawa | Rena Kubota |
|---|---|---|
| BetOnline | -2800 | +1300 |
| Betway | -2500 | +850 |
| Bovada | -2500 | +1000 |
| MyBookie | -3030 | +770 |
| Stake | -2500 | +760 |
Odds are for information only. · Odds data: fightodds.io
Frequently asked questions
Who won Seika Izawa vs Rena Kubota?
Seika Izawa defeated Rena Kubota by Submission in round 2 (1:58) in the 108 lb Catchweight bout of Rizin FF - Shiwasu no Cho Tsuwamono Matsuri, held Wednesday, December 31, 2025 at Saitama Super Arena, Saitama.
Referee
Masato Fukuda
Pre-fight comparison▾
Win probability
Seika Izawa 78%22% Rena Kubota
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
18-0-0
Record
15-6-0
1914
Power Index rating
1689
12
Win Streak
0
28
Age
35
5'3"
160 cm
Height
5'3"
160 cm
64"
163 cm
Reach
63"
160 cm
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Stance
-
108 lb Catchweight
Weight Class
108 lb Catchweight
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)
Seika Izawa · 5-0
Rena Kubota · 3-2
Common Opponents
Seika Izawa
Rena Kubota
- vs
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