Xxi Dumau International Jiu Jitsu Championship 2025. (gi Event Female Blue Master 41 Light Feather 5 Mins ~54.4kg 3 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Koike Hiroko Bonsai Jiu-jitsu Japan JPN Ishii Tomoko Hassern Gym Fight 54 Mat 1 4 May 5:59AM JPN Ikeda Kiyomi Impacto Bjj Japan JPN Koike Hiroko Bonsai Jiu-jitsu Japan Fight 58 Mat 1 4 May 16:42PM Ishii Tomoko Hassern Gym Ikeda Kiyomi Impacto Bjj Japan JPN JPN Fight 61 Mat 1 4 May 7:42AM Ishii Tomoko Hassern Gym JPN