Master Suh' reasons for studying Taekwondo were for self-defense, for the discipline it instilled and to continue the family tradition. He expanded his martial arts knowledge while he served in the U.S. Marine Corps from 1989-1993. During his tour of duty, he was stationed in South Carolina, California, North Carolina, Okinawa, Japan, and Korea. While stationed in Okinawa, Master Suh studied Kyokushin Karate, a form of Japanese full contact martial arts, in which he excelled as a competitor.

As a World-Class Taekwondo competitor, Master Suh has won at the state, regional, national and international circuit. He is a former New York, New Jersey, and Connecticut State Champion, National Collegiate Champion, and U.S. National Team Member. Master Suh represented the U.S. National Team at the 1998 Pan-American Championships in Lima, Peru and the 2000 World Cup Championships in Lyon, France as well as a U.S. Team to Venezuela in 1996 and Mexico in 1998. Master Suh was awarded the "Best Athlete Award" by the Korean-American Council of Amateur Sports in 1995 and 1998.

In September of 1997, Master Suh opened his first High Performance Taekwondo Center in Astoria, Queens where his Team High Performance trains. The Astoria center has been producing and developing National Champions every year since 1998. Students from all over New York area and New Jersey continue to travel hours on a regular basis to train under Master Suh. In September of 2000, Master Suh hosted and directed his first Taekwondo tournament, the Gold Cup National Taekwondo Championships. Presently it is the biggest and most competitive Taekwondo tournament in the Northeast. The Gold Cup has been drawing competitors from over 20 states and 5 countries over the year's and is continually growing. Each year you can expect to see the top fighters and teams competing at the Gold Cup.

In 2005, Master Suh co-founded the New York Sport Taekwondo Commission. The NYSTC was established to support the sport Taewkondo movement in the New York area. Under his leadership and guidance, the NYSTC sponsored over 30 elite athletes to compete in major international championships in the Netherlands, Germany, and Great Britain. The NYSTC program has developed U.S. National Team Members, U.S. National Champions. Junior National Team Members, and National Collegiate Team Members.Also in 2005, Master Suh was selected as a U.S. National Team Coach by USA Taekwondo for the 2005 World Championships in Madrid, Spain. In 2006, Master Suh was awarded "Best Coach" by USA Taekwondo for his accomplishments and achievements coaching his Team High Performance which also won the Best Team award at the U.S. Open Championships that year winning 32 consecutive matches with no losses. Master Suh's Team High Performance has been producing U.S. National Team Members since 1998.