1973Black belt at sixteen — tested before General Choi Hong Hi, the founder of Taekwon-Do — and already teaching on Jae Hun Kim’s floor.He had found Grandmaster Jae Hun Kim, then a graduate student at MIT, a couple of years earlier, as Kim was introducing authentic Taekwondo to New England.
1976–82Five consecutive years on the USA Taekwondo national team.
1978Bronze medal, Pan American Games, Mexico City.
1978–81Gold at the U.S. Team Trials four years running, welterweight division.
1979Named Male Competitor of the Year. Competes at the World Championships in Stuttgart.
1980Gold medal, Pan American Games, Houston. Elected U.S. Team Captain. Receives the Ken Min Leadership Award.
1984Head coach of the U.S. national team at the Olympic Sports Festival, Houston.Four years before Taekwondo’s Olympic debut in Seoul.
1985Elected Athletes’ Representative to the United States Olympic Committee.
1980s–2010sPrincipal instructor at the Jae Hun Kim Taekwon-Do Institute for more than thirty-five years.Where he taught, among thousands of others, a young Joe Rogan.
2017Taekwondo Lifetime Achievement Award, and induction into the Taekwondo Hall of Fame, at the ceremony in New York.
2011Opens the M.J. O’Malley Tae Kwon Do Center, 79 Lynnfield Street, Peabody.Seven days a week, forty-plus classes.
2025Sells the school as a going concern — students, staff and floor intact — and stays on Sundays to walk one last group of candidates through their black belt tests.