Jiu Jitsu Koushien Spring 2025 Male Grey Kid 5 Middle 4 Mins ~56.7kg 4 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Aihara Hinata Takamoto Dojo JPN Naito Yamato Sakura Judo Juku Fight 22 Mat 3 26 Apr 4:39AM JPN Nakamura Kota Strong Spirit Jiu Jitsu JPN Yamakawa Genji Submit Mma Fight 23 Mat 3 26 Apr 4:43AM Naito Yamato Sakura Judo Juku Yamakawa Genji Submit Mma JPN JPN Fight 28 Mat 3 26 Apr 4:53AM Yamakawa Genji Submit Mma JPN