But for the 15-year-old San Marcos High School standout, every match, clinic, and lesson is also part of a much bigger goal: using the sport to help others. 2 singles for the San Marcos varsity tennis team all season, helping the Royals capture the CIF-SS Division 5 championship this year with a dramatic 85-81 games-won tiebreaker win over San Clemente. Off the court, Chossek has committed the entirety of his high school career to a simple mission: use tennis as a force for good. Chossek’s commitment to supporting San Marcos tennis stems from the goal of making an excellent experience for everyone on the tennis team, gratitude for what the team has already helped him achieve and a desire to see the team do the same for others. From the proceeds of his most recent camp, Chossek donated $1,000 to the San Marcos Booster Club to help support the tennis program that helped shape his own game.