Master Sung-chan Chang has over 38 years of martial arts experience. Master Chang is a Seventh degree black belt in the traditional Korean martial art of Taekwondo, certified by the Kukkiwon. The Kukkiwon is the official World Headquarters for authentic Taekwondo. Master Chang was born in South Korea, and is a graduate of the world famous Yong-In University, where he was awarded a Master’s degree in Sports Management, specializing in Taekwondo. Master Chang is also a Seventh degree black belt in Yongmoodo. Master Chang is one of the elite few who is not only a Master in the arts of Taekwondo and Yongmoodo, but also has a formal university graduate degree in physical education and teaching.

At the core of our philosophy is that we must take proper care of our bodies and minds. In order to advance as martial artists, we must practice Taekwondo. However, it is essential to incorporate quiet time, proper diet and hydration, and rest. We must also think positively, avoid speaking negatively at all times and serve others. By practicing these things daily to keep our bodies, minds, and spirits in good health, we will begin to increase our positive energy. We remind students that internal change (eliminating bad habits) is never swift and will not be as recognizable as the external changes the body shows from the physical training that occurs. Yet the internal changes are more important and are absolutely essential to succeed as a Taekwondo practitioner.


  • Graduated From Yong-In University ( Taekwondo specializing )

  • Yong-In University, Master’s degree in Sports Management, specializing

  • 7th Degree Black Belt Taekwondo

  • 4th Degree Black Belt kick boxing

  • 1994-2012 Korea YIMJIN Martial arts Grand master

  • The World Taekwondo Championship Competitive Sparring Gold Medalist In Korea.

  • Certified Taekwondo 3rd Class Sparring Referee (Form Kukkiwon)

  • Certified in 2nd Class Chiropractic & Physical Therapy 


  • 8th Degree Black Belt Judo 

  • 8th Degree Black Belt Taekwondo 

Official -- 1976 until present

  •             Started Judo and Taekwondo official in 1976

  •             Attained International Referee status in Judo and Taekwondo 1982

  •             Olympic License in 1987 for Judo and Taekwondo

  •             Past member of Pan American Judo Union Referee Commission Member (42 countries)

  •             Olympic Referee in Atlanta 1996

  •             Paralympics Referee in Atlanta 1996

  •             Olympic Referee in Sidney 2000

  •             Referee 5 times for Judo World Championships (Spain, France, England, Egypt and Germany)

  •             Referee for World Taekwondo Championships in Denmark in 1983

  •             Pan Am Olympic Games referee 2 times (Canada and Brazil)

  •             US Taekwondo National Championships  Referee 10 times



  •             Sixth Ring Member of US Olympic Committee

  •             US Judo Life Member and Referee Commission Member

  •             World Taekwondo Federation Member

  •             US Taekwondo Union Past Vice Chair of Referee Committee

  •             Past President of Minnesota Taekwondo Association


  •             NW Airlines President's Excellence Award

  •             International Olympic Committee Appreciation Awards

  •             US Olympic Committee Awards

  •             US Judo and World Taekwondo Federation Awards

  •             Inducted into Pan American Judo Union Hall of Fame in 2008


Mr. Chung

  • 4th Degree Black Belt Taekwondo

  • Develop class curriculum, exercises, and drills to meet the varying needs of students under Grandmaster Chang. 

  • Promote respect and discipline through individual challenges, partner work, and group activities.


Yunseo Chang



7043 Cahill Rd
Edina, MN 55439