BJJ Tournaments August 4, 2019August 8, 2019 2019 IBJJF Chicago Summer Open – Double Gold! Posted By: Scott 4232 Views Brown Belt, Chicago open champion, double gold, ibjjf, jiu-jitsu I dropped down a couple of age groups to Brown Belt, Masters 3 and went up to Heavyweight to get a few matches near my weight class in preparation for the IBJJF Masters Worlds in Las Vegas in a few weeks.