Akira Yamazaki

Professional MMA referee — 462 bouts officiated on record.

462

Bouts

159

KO/TKO

112

Submission

164

Decision

Finish rate (of decided bouts) 62 %

Where they've officiated

Recent bouts officiated

Mutsuki Miyajima vs Hiroki Hirano 2026-05-17

Grachan - Grachan 82 · TKO (Knee and Punches)

Kazuma Maruyama vs Kengo Fujimura 2026-05-17

Grachan - Grachan 82 · Decision (Unanimous)

Ryota Tagashira vs Takuya Kanamori 2026-05-17

Grachan - Grachan 82 · Decision (Unanimous)

Erick Meneghin vs Takaya Takemoto 2026-03-15

ROMAN - Roots of Martial Arts Network 4 · Decision (Unanimous)

Shuto Watanabe vs Keisuke Hashimoto 2026-03-15

ROMAN - Roots of Martial Arts Network 4 · Submission (Bow and Arrow Choke)

Kazumichi Murai vs Shota Takasu 2026-03-08

Fighting Nexus - Vol. 43 · Decision (Unanimous)

Yoshitaka Kakinuma vs Keisuke Koiso 2026-03-08

Fighting Nexus - Vol. 43 · Submission (Rear-Naked Choke)

Taichi Yokoyama vs Junya Murata 2026-03-08

Fighting Nexus - Vol. 43 · Decision (Majority)

Kengo Fujimura vs Yuta Zhang 2026-03-01

Grachan - Grachan 81: Helios 3 · Submission (Armbar)

Motonobu Tezuka vs Yutaka Ueda 2026-03-01

Grachan - Grachan 81: Helios 3 · TKO (Elbows and Punches)

Takuya Kanamori vs Jasmine Jasmine 2026-03-01

Grachan - Grachan 81: Helios 3 · TKO (Punches)

Daiki Maruyama vs Shoryu Kuroiwa 2026-03-01

Grachan - Grachan 81: Helios 3 · Technical Submission (Shoulder Choke)

Kazuma Maruyama vs Koshi Matsumoto 2026-02-01

Grachan - Grachan 80 · KO (Knees)

Daisuke Kobayashi vs Kaito Oda 2026-02-01

Grachan - Grachan 80 · KO (Punches)

Tadahide Aoki vs Jong Hwan Lee 2026-02-01

Grachan - Grachan 80 · Submission (Shoulder Choke)