Niigata International Open Jiu Jitsu Championship 2025 Male Grey Kid 3 Feather 3 Mins ~31.8kg 2 1 / 1 Division Max Weight Time Competitors Brackets USA Nagata Jigen Infight Japan JPN Watanabe Rihuu Impacto Bjj Japan Fight 5 Mat 2 29 Jun 10:26AM Watanabe Rihuu Impacto Bjj Japan JPN