Thacher formed one of the first high school girls lacrosse programs in the state of California. In the early days, the Toads led the way as not only the perennial frontrunner in their league, but as the winner of five consecutive state championships. As the sport took off in popularity and became California Interscholastic Federation (CIF) sanctioned in 2006, Thacher's schedule grew and the games became even more competitive. Today, the girls program continues to field a talented and well-coached outfit. 

Many who play on the varsity team arrived at Thacher not having played lacrosse before; thus, a rewarding varsity career awaits  those willing to put in the work. At both JV and varsity levels, individual skill development and team unity represent key program values. When the team huddles for their traditional cheer, "Orange, Green, Pride," they acknowledge that they are adopting the goals of the Thacher girls lacrosse program: play hard, honor the game, and always emphasize the best sportsmanship possible.