All Team Members

Gwendolyn Duncan has been training for 6 years. She has a grey belt in BJJ and a yellow belt in SGC Karate. She helps to coach the Little Ninjas classes.

Elena Duncan has been training for 8 years. She has a yellow belt in BJJ and a purple belt in SGC Karate. She helps to coach the Little Ninjas classes.

Sophia Duncan has been training for 9 years. She has a yellow belt in BJJ and a purple belt in SGC Karate. She helps to coach the kids classes.

Dr. Brian Duncan has been training in martial arts for 3 decades. He currently holds a 5th degree black belt in SGC Karate & Kickboxing and a purple belt in BJJ. Coach Brian also has a 2nd degree black belt in Koei-Kan Karate and a black belt in Wing Chun.

Tom Clerici is a BJJ brown belt having trained under Professor Steven Bongiorno, Professor Jay Regalbuto, and Professor Chris Massie. He has prepared world-class competitors for ADCC World Championships and Trials, IBJJF World and Pan Championships, EBI Invitationals and many local and national tournaments.

Kailey Duncan is a BJJ Blue Belt and the head coach for our “Women’s Introductory Self-Defense Course” and an assistant coach for our Kids BJJ classes.

Steven Bongiorno has been training in martial arts for over 40 years. He earned his Brazilian Jiu Jitsu Black Belt under Ricardo Almeida in 2005 and currently holds a third degree black belt. The owner of South Jersey Brazilian Jiu Jitsu, he has multiple BJJ affiliate schools and is active in all of them. He has trained with UFC fighters, prepared world champions, and actively teaches professional MMA fighters, jiu jitsu competitors, and BJJ hobbyists of all ages. In August of 2019 he was inducted into the New Jersey Martial Arts Hall of Fame.