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(423) 408-8260
1133 N Eastman Rd Kingsport, TN 37664

BJJ Instructors

Brian Duncan

Brian Duncan

Head Coach, Founder

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

Tom Clerici

Coach, Co-owner

Tom Clerici is a BJJ black 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

Kailey Duncan

Coach, Women's Instructor

Kailey Duncan is a co-owner of Duncan MMA, a Brazilian Jiu Jitsu Blue Belt, and the Head Women’s Jiu Jitsu Coach. She also serves as an assistant instructor in our Kids BJJ program, helping develop strong fundamentals, discipline, and confidence in young athletes.

Sophia Duncan

Sophia Duncan is a Brazilian Jiu Jitsu Blue Belt and holds a Purple Belt in SGC Karate & Kickboxing. At just 16 years old, she is already an active competitor and dedicated member of the Duncan MMA team.

Reese Ledford

Coach Reese brings a strong wrestling background and a passion for athlete development to Duncan MMA. With over a decade of wrestling experience, he focuses on teaching the technical foundations of wrestling while helping students build the discipline, work ethic, and mental toughness needed to succeed both on and off the mat.