Koichi Ishizuka
“ Domestic Prince ”
Koichi Ishizuka is a Japanese mixed martial artist with a professional record of 21-6-1 across 28 bouts. They've won 8 by KO/TKO, 5 by submission and 8 by decision — a 62 % finish rate. Most wins come by decision. Currently on a 2-fight win streak. Last competed December 2025 (active). Has fought most often in Japan (28 bouts).
Fight locations (6 venues)
Career timeline — fights by year
Frequently asked
What is Koichi Ishizuka's MMA record?
Koichi Ishizuka has a professional MMA record of 21-6-1 — 8 wins by KO/TKO, 5 by submission, 8 by decision.
How does Koichi Ishizuka usually win?
They most often win by decision (8 of 21 wins).
How does Koichi Ishizuka usually lose?
Most of Koichi Ishizuka's losses come by KO/TKO (3 of 6).
Is Koichi Ishizuka still active?
Koichi Ishizuka last competed in December 2025, and is considered active (no bout in over two years).
What is Koichi Ishizuka's fastest finish?
KO/TKO of Wataru Mimura in 1:23 (Rd 1) at Deep - Tokyo Impact 2022 1st Round.
Where is Koichi Ishizuka from?
Koichi Ishizuka is a Japanese mixed martial artist.
What is Koichi Ishizuka's longest MMA win streak?
Koichi Ishizuka's longest winning run on record is 9 straight victories.
Where does Koichi Ishizuka rank in MMA?
Koichi Ishizuka sits at #1,207 of 32,631 fighters in the Fight Forensics global MMA rankings.
Pro MMA (28)
Amateur (4)
Amateur bouts — not counted toward the pro record.