Okinawa International Open Jiu Jitsu Championship 2025 Male Brown Adult 18 Heavy 8 Mins ~94.1kg 2 1 / 1 Division Max Weight Time Competitors Brackets JPN Yumoto Kazuyoshi The Black Belt Japan Ok.. USA Laborn Enel Ivan Sakamoto Bjj Okinawa Fight 88 Mat 1 29 Mar 16:50PM Yumoto Kazuyoshi The Black Belt Japan Ok.. JPN