57th All-Japan Open Championship in Kyokushin (IKO), 2025
Winners
- Konstantin Kovalenko — Russia
- Kaito Nishimura — Japan
- Danil Goryushkin — Russia
- Maxim Belovo — Russia
- Rashad Guseinov — Russia
- Ryoji Ohata — Japan
- Alexey Fedoseev — Russia
- Taiga Nishimura — Japan