Niigata International Open Jiu Jitsu Championship 2025 Male Blue Master 51 Open Weight 5 Mins FREE 3 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Ikeda Hiroshi Niigata Slack JPN Iwama Shigeo Blue Max Fight 42 Mat 1 29 Jun 4:39AM JPN Waizum Hideo Hiro Brazilian Jiu-jits.. JPN Iwama Shigeo Blue Max Fight 45 Mat 1 29 Jun 4:56AM Ikeda Hiroshi Niigata Slack Waizum Hideo Hiro Brazilian Jiu-jits.. JPN JPN Fight 49 Mat 1 29 Jun 5:24AM Ikeda Hiroshi Niigata Slack JPN