Jiu Jitsu Koushien Summer 2025 Male Grey Kid 5 Feather 4 Mins ~44.0kg 3 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Watanabe Rairu Impacto Bjj Japan JPN Umemiya Mitsuaki Takamoto Dojo Fight 1 Mat 1 12 Oct 12:00PM JPN Numata Tori X-treme Ebina JPN Umemiya Mitsuaki Takamoto Dojo Fight 4 Mat 1 12 Oct 12:08PM Watanabe Rairu Impacto Bjj Japan Numata Tori X-treme Ebina JPN JPN Fight 8 Mat 1 12 Oct 12:26PM Watanabe Rairu Impacto Bjj Japan JPN