Gus Grumet, 16, of Mill Valley at the Boyle Park tennis counts in Mill Valley, Calif. on Wednesday, July 25, 2024. Grumet, who began taking tennis lessons at Boyle Park when he was 4 years old, recently won the national clay court 16 tennis championship. (Sherry LaVars/Marin Independent Journal)
Gus Grumet, 16, of Mill Valley hits a backhand at the Boyle Park tennis counts in Mill Valley, Calif. on Wednesday, July 25, 2024. Grumet recently won the national clay court 16 tennis championship.