
Fight night · ONE
Pacio defends the strawweight title against Yamakita
Pacio has made two defenses, and he submitted Mansur Malachiev with a rear-naked choke in the last one. Yamakita has won five in a row, and this is Pacio's third reign.
ONE · Strawweight

13–1–0
1 KO · 5 SUB · 7 DEC
Keito Yamakita fights at strawweight in ONE.
He submitted Koyuru Tanoue with a bulldog choke at 4:37 of the first round at ONE Samurai 2 on August 8, 2026. He has won five in a row. The loss is a unanimous decision to Bokang Masunyane at ONE 165 on January 28, 2024.
He trains at Reversal Gym Shinjuku Me, We, ONE lists his birthplace as Inabe, and he won a Pancrase strawweight title.

Fight night · ONE
Pacio has made two defenses, and he submitted Mansur Malachiev with a rear-naked choke in the last one. Yamakita has won five in a row, and this is Pacio's third reign.
| Date | Opponent | Result | Method | Round | Time | Event |
|---|---|---|---|---|---|---|
| Koyuru Tanoue | Win | Submission (bulldog choke) | 1 | 4:37 | ONE Samurai 2 | |
| Ryohei Kurosawa | Win | Submission (armbar) | 2 | 1:31 | ONE Samurai 1 | |
| Lito Adiwang | Win | Decision (unanimous) | 3 | 5:00 | ONE Fight Night 28 | |
| Yosuke Saruta | Win | Decision (split) | 3 | 5:00 | ONE Fight Night 24 | |
| Jeremy Miado | Win | Submission (bulldog choke) | 1 | 4:04 | ONE 166 | |
| Bokang Masunyane | Loss | Decision (unanimous) | 3 | 5:00 | ONE 165 | |
| Alex Silva | Win | Decision (unanimous) | 3 | 5:00 | ONE Fight Night 8 | |
| Daichi Kitakata | Win | Decision (unanimous)Won the Pancrase strawweight title. | 5 | 5:00 | Pancrase 328 | |
| Ryosuke Noda | Win | Decision (unanimous) | 3 | 5:00 | Pancrase 324 | |
| Tatsuki Ozaki | Win | Submission (armbar) | 1 | 4:54 | Pancrase 322 | |
| Shuto Aki | Win | KO (knee) | 2 | 2:21 | Road to ONE: Young Guns | |
| Taiga Tanimura | Win | Decision (unanimous)Won the Pancrase Neo Blood strawweight tournament. | 3 | 5:00 | Pancrase 320 | |
| Tomoki Otsuka | Win | Decision (unanimous) | 3 | 5:00 | Pancrase 319 | |
| Masaya Oshiro | Win | Technical submission (kimura)Pro debut. | 1 | 4:51 | Pancrase 312 |