Keelan Kirshen joined MCST as a swimmer when he was 10 years old and has coached for MCST since 1989. His swimming experience includes MCST, the Concord-Pleasant Hill Swim Team, the Walnut Creek Aquabears, and Diablo Valley College. He graduated from Berean Christian High School in 1990 and St. Mary’s College in 1994. He has been a history teacher at the Martinez Junior High School since 1996. Keelan's two kids Kenzie and Mac both swim for MCST.