GMA member Stephen Roberto is the owner and head instructor at Purebred Jiu-Jitsu Guam. Having opened the academy in 1996, Stephen's leadership has led his…
Stephen Roberto is the lead instructor of GMA Purebred Jiu-Jitsu Guam. Recently he had the experience of teaching high-level black belts in Japan and train…
Although the IBJJF International Master and Senior World Championship won't be for another few months on October 5 and 6, the students at GMA Purebred…
GMA member Stephen Roberto was awarded this weekend, in Guam. The leader of Purebred Guam was voted the Outstanding Group Fitness Instructor by the Governor's Council…
Congratulations are in order for our GMA member Stephen Roberto. Last September 10, he celebrated the 15th anniversary of his presence in Guam. Roberto wrote…