Issei Ishii
Known for
- K-1 DONTAKU (2025)
- K-1 WORLD GP 2026 (2026)
- RISE World Series 2021: Osaka (2021)
- K-1 WORLD MAX 2025: 70kg World Championship Tournament Final (2025)
- K-1 DONTAKU 2026 (2026)
- RIZIN 10 (2018)
- K-1 WORLD GP 2023: K'FESTA 6 (2023)
- RISE on ABEMA 2 (2021)
- RIZIN 7 (2017)
- K-1 WORLD GP 2022: World Featherweight Tournament (2022)
- K-1 WORLD GP 2022: Bantamweight Championship Tournament (2022)
- K-1 ReBIRTH 2 (2023)
- K-1 BEYOND (2025)