Nagoya International Open Jiu Jitsu Championship 2023 Male Black Adult Open Weight 8 Mins FREE 3 1 / 1 Division Max Weight Time Competitors Brackets Final JPN Tsutsumi Kouta Impacto Bjj Japan JPN Kako Takuto Grappling Shoot Boxers Fight 67 Mat 2 23 Dec 7:21AM BRA Hirotomi Mateus Impacto Bjj Japan JPN Tsutsumi Kouta Impacto Bjj Japan Fight 71 Mat 2 23 Dec 16:48PM Kako Takuto Grappling Shoot Boxers Hirotomi Mateus Impacto Bjj Japan JPN BRA Fight 74 Mat 2 23 Dec 7:55AM Kako Takuto Grappling Shoot Boxers JPN