Jeff Chapman is the owner and one of the head instructors at Sektor Riverside. He recieved his black belt from his best friend and co-head instructor Spencer Mendivil. He is an avid competitor with notable major podiums. He places second in IBJJF NoGi Masters Worlds and IBJJF North American Masters Gi at brown belt. He won JJWL Worlds in his black belt debut in his division. He looks forward to building his own competitive team and share with his students what he has learned in the many years of high level competition. He is an IBJJF certified black belt.