2-5-1
Pro W–L–O
Am 1–0
Kaisei Umenaga is a Japanese mixed martial artist with a professional record of 2-5-1 across 8 bouts. They've won 1 by KO/TKO, 1 by submission and 0 by decision — a 100 % finish rate. Last competed June 2026 (active). Has fought most often in Japan (9 bouts).
Finish rate
100 %
Wins by
1 KO · 1 SUB · 0 DEC
Usually wins by
submission
Usually loses by
submission
Fastest win
1:30 (Rd 1)
vs Masashi Yamamoto
Fastest loss
6:11 (Rd 2)
vs Shunsuke Kubota
Most fights in
Japan 9
Last fought
Jun 2026 · Active
Fight locations (3 venues)
Career timeline — fights by year
Wins
Losses
Draw/NC
Frequently asked
What is Kaisei Umenaga's MMA record?
Kaisei Umenaga has a professional MMA record of 2-5-1 — 1 wins by KO/TKO, 1 by submission, 0 by decision.
How does Kaisei Umenaga usually win?
They most often win by submission (1 of 2 wins).
How does Kaisei Umenaga usually lose?
Most of Kaisei Umenaga's losses come by submission (3 of 5).
Is Kaisei Umenaga still active?
Kaisei Umenaga last competed in June 2026, and is considered active (no bout in over two years).
What is Kaisei Umenaga's fastest finish?
submission of Masashi Yamamoto in 1:30 (Rd 1) at WCF - Wardog Cage Fight 32.
Where is Kaisei Umenaga from?
Kaisei Umenaga is a Japanese mixed martial artist.
Pro MMA (8)
L
2026-06-28
vs
Hiromu Ueni
Gladiator - Gladiator 035 in Osaka: 10th Anniversary
· Gladiator (Japan)
L
2022-04-10
R2 4:03
L
2021-11-21
R2 1:17
Amateur (1)
Amateur bouts — not counted toward the pro record.