Head instructors Vinh Chung and Mark Davis, both share the responsibility of teaching kids to be respectful and responsible through the disciplines of Judo.

Mark Davis is a second-degree (Nidan), while Vinh Chung a third-degree (Sandan). And is certified through United States Judo Federation (USJF). USJF is the oldest Judo organization in the United States. Vinh & Mark are also certified coaches through USA Judo , which is the National Governing Body for Judo in the United States.

Vinh and Mark studied Judo in the 70's under their sensei Fred Lee of Lee's Judo Club located at Terra Nova High School in Pacifica. Fred Lee retired in 1984. After many years away from Judo, Mark and Vinh have returned to their roots where they assumed the position of head instructors of Pacifica Judo Club from Sensei Vern Johnson who recently retired. Aside from teaching Judo Vinh Chung is a certified National referee and is actively involved in both local and national level Judo tournaments.