Professor Hayden announces Maine's newest grappling promotion, the Flow Sub-Only Open. An open grappling tournament to be held June 26th, 2022 in Warren, Maine at the Mid-coast Athletic Center. The event will feature kids gi and nogi jiu jitsu, women's gi and nogi jiu jitsu, men's gi and nogi jiu jitsu, as well as Absolute divisions and 2-3 SuperFights! Listen for all the details!