Jiu Jitsu Koushien Summer 2024 Male White Youth Medium Heavy 3 Mins ~45.4kg 3 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Negishi Riku Bushokan Dojo JPN Ninomiya Yuu Shonan Brazilian Jiujitsu Fight 69 Mat 3 15 Sep 8:54AM JPN Takamiya Kotaro Cave Bjj JPN Negishi Riku Bushokan Dojo Fight 72 Mat 3 15 Sep 9:12AM Ninomiya Yuu Shonan Brazilian Jiujitsu Takamiya Kotaro Cave Bjj JPN JPN Fight 75 Mat 3 15 Sep 9:24AM Ninomiya Yuu Shonan Brazilian Jiujitsu JPN