Boston Spring International Open IBJJF Jiu-Jitsu Championship
Any athlete who has proven to be a black belt in judo, has fought MMA professionally, has an amateur MMA record or has proven experience in wrestling, Olympic wrestling or Greco-Roman wrestling, can not participate in any league as a white belt. Proven experience in the U.S. consists of having competed at the collegiate level or higher and in other countries, having competed in nationwide events.
