Riptide Leadership
Meet the Board
The San Francisco Lacrosse Club is run by an all-volunteer Board of Directors. If you are interested in volunteering for the program, or joining the Board, please email: clubpresident@sfriptide.com
Steve Dini grew up in the Bay Area and played lacrosse in CO and CA growing up. He spent 20+ years coaching High School and College lacrosse. He is a parent to Anne and Louisa in 4th grade and is current Chair of the Board and works in education.
Matt Eccleston grew up in New England and played lacrosse in highschool and college at Brown before relocating to San Francisco. With his two daughters, he's been learning the women's game and coaching girls' teams with Riptide for the past three years, joining the board last year. Matt is a technology advisor and investor.
Mark Guthrie grew up playing lacrosse on the East Coast through college and has coached boys teams in the Bay Area for 10+ years. He is an economist working in biotech.
Marc Chaput grew up in CT and had never picked up a lacrosse stick until his kids asked if they could try lacrosse. He is a parent of a Riptide player. He is the current Treasurer and works in medical device investment banking.
Julie is a native of Philadelphia, PA, where she played all sports as a kid. In high school, she was a 4-year varsity letter athlete for both the field hockey and lacrosse teams. Julie came west to the Bay Area, where she attended and played on Stanford University's Women's D1 lacrosse program all four years. Since graduating from Stanford, Julie has been working in the renewable energy industry and is currently working in Procurement at a small energy storage developer, Plus Power LLC. She has coached Riptide U12A girls for two years now and is actively involved in coaching the fall ball program as well. This past spring (2023), she was assistant coach at International High School for their first-year girls program.
Chuck grew up in Mill Valley, CA and fell in love with Lacrosse at a young age. Upon moving back from the east coast, he started coaching for All West Lacrosse (2014-2019) and Marin Catholic high school (2014-2018). He also was Director of training for Ross Valley Grizzlies (2019-2023), Director of Operations for ADVNC Lacrosse (2019-present), and Head Varsity coach at Casa Grande High School (2019-2023). Chuck believes in having "PMA" (Positive Mental Attitude), and coaches with "RAE" (Respect, Attitude, Effort). He is committed to the growth of Lacrosse in San Francisco.
Joe Gelbard grew up in Baltimore, playing lacrosse his whole life. He's been coaching at Riptide for the last 8 years and has one son currently in the program and a daughter who graduated.
Scott Castro grew up playing lacrosse on the East Coast through the collegiate level. He was formerly the club's President, and has served on the Board for nine years. He works as an attorney in the renewable energy sector.
Omari Williams grew up playing lacrosse on the East Coast and was fortunate to play in High School and College. He's been coaching boys' teams locally for 5+ years. His son Mason plays on a number of club teams and he is a Realtor successfully serving San Francisco & Marin.
Preston Becker is the father of twin girls who play U-12 for Riptide. A Bay Area native and Cal grad, he’s also an avid golfer and psychotherapist in private practice.
Mary is a California native who grew up in Monterey and has lived in San Francisco for 20 years. Mary has never played lacrosse but has grown to love the sport as her daughter plays for Riptide. Mary is currently a Director of HR for a professional service firm.
