Kousei Nagai is a Japanese mixed martial artist with a professional record of 3-1 across 4 bouts. They've won 0 by KO/TKO, 1 by submission and 2 by decision — a 33 % finish rate. Most wins come by decision. Currently on a 2-fight win streak. Last competed March 2026 (active). Has fought most often in Japan (4 bouts).
Fight locations (1 venues)
Career timeline — fights by year
Frequently asked
What is Kousei Nagai's MMA record?
Kousei Nagai has a professional MMA record of 3-1 — 0 wins by KO/TKO, 1 by submission, 2 by decision.
How does Kousei Nagai usually win?
They most often win by decision (2 of 3 wins).
How does Kousei Nagai usually lose?
Most of Kousei Nagai's losses come by decision (1 of 1).
Is Kousei Nagai still active?
Kousei Nagai last competed in March 2026, and is considered active (no bout in over two years).
What is Kousei Nagai's fastest finish?
submission of Rikuto Kusakabe in 0:29 (Rd 1) at WCF - Wardog Cage Fight 45.
Where is Kousei Nagai from?
Kousei Nagai is a Japanese mixed martial artist.
What is Kousei Nagai's longest MMA win streak?
Kousei Nagai's longest winning run on record is 2 straight victories.