Master Instructor
Master Instructor S.J. Demko
Master Demko started training, competing and teaching Martial Arts over 31 years ago, in 1979 as a student of Grandmaster Kae Bae Chun. Master Demko attained the Rank of 2nd Degree Black belt while studying for ten years under Grandmaster Chun in Youngstown Ohio. In 1989 the company that Master Demko worked for transferred him to Cleveland Ohio. It was Master Demko’s great good fortune to move to North Royalton where he began his training anew with Grandmaster Sang O. Moon. Under Grandmaster Moons tutelage, guidance and teachings Master Demko was promoted to 3rd Dan and eventually to 4th and 5th Dan Master Instructor Ranks. Master Demko retired from the USCG Reserve serving for 35 years and is a Gulf War Veteran. Master Demko has also Retired from a large Telecommunications firm with 35 years of service. Master Demko currently works as a Realtor in the Cleveland Area.
Traditional Martial Arts Family Tree
5th Dan Promotion
