Our Coaches

Mark Anderson - Head Coach   

Mark swam for the Sleepy Hollow Swim Team for 10 seasons and was an All American Junior College water polo player at College of Marin.  He was hired to coach SHST in his senior year of high school, 1990.  After coaching from 1990 to 1996, Mark spent 4 years getting his summer camp and swim lesson program going.  He came back to the SHST in 2001 to coach and has been coaching the team ever since.

Mark instills good technique starting with the youngest swimmers and strives to keep the drills simple and fun so kids don’t have to over-think. He wants them to become consistent and confident swimmers without doing excessive yardage. They can expect practices to be challenging, but fun too! The coaches set goals for each swimmer so he or she knows how to improve. As Head Coach, Mark is known for connecting with each and every swimmer on a personal level every day. He teaches them to look each other in the eyes, to shake hands, and to care for each other, which is what makes this team special. Mark takes tremendous pride in developing the characters of his swimmers, helping families raise their kids, and building a supportive community.

In addition to coaching the Sea Lions, Mark coached the Boys Varsity Water Polo team at Drake High School for over 20 years. In 2014, Mark was inducted into the Marin County Athletic League Hall of Fame for coaching.  Mark is the head coach of the Sleepy Hollow Aquatics (SHAQ) water polo club. Mark is currently director of Aquatics for San Domenico School and teaches PE there.   Mark, his wife Julie (who also swam for SHST and coached from ’93 – ‘97) and their four boys, Marcus, Keenan, Logan, and Nolan, live in San Anselmo.

Contact Mark


Sophie Doyle - Assistant Coach

Sophie Doyle has been swimming since she was four years old and playing water polo since age nine. She grew up in Southern California and attended Mater Dei High School where she played four years of varsity water polo and swimming. Sophie then went on to play water polo and swim at Santa Rosa Junior College. After two years, she transferred to the University of Pacific and went on to play two years of D1 water polo and earn a degree in communication and psychology. After graduating, Sophie moved to Australia to play water polo and coach. Since returning home, Sophie has been coaching for Marin Catholic High School varsity women's water polo and men's and women's swimming since 2013. She has been coaching for SHAQ since 2014 and has a passion for coaching and sharing her love of the game.  


Joey Doyle - Assistant Coach

Joey Doyle grew up in Marin and attended Drake high school where he was a multi-sport athlete. He was named to the 1st Team MCAL and 2nd Team NCS for water polo; and a two-time runner up for MCAL MVP in volleyball. He also played varsity basketball for three years. In College Joey was a dual sport athlete as a member of the Santa Rosa Junior College swim team and water polo team. Joey then transferred to the University of the Pacific (UOP). At UOP, he was a two-time All MPSF Academic Team Selection, helped guide the water polo team to a National No. 4 NCAA D-1 ranking, while graduating with degrees in Communication and Business Management in 2012. Doyle then moved to Australia where he played and coached water polo in Australia and New Zealand. Joey is currently in his 3rd year as an assistant coach for the Sonoma State University Women's Water Polo Team and as a Swim Instructor/Lecturer in the Sonoma State University Kinesiology Department. Additionally, he coaches club water polo for SHAQ and teaches PE at Mark Day School.

Joey and Sophie are happily married to each other.