Thayer White shot a 71 at par-72 Sandpiper Golf Club to lead the San Marcos boys golf team to a 399-435 victory over Buena.
The Channel League win helped the Royals improve to 3-5 against league opponents.
San Marcos (6-7) will continue its season at the Channel League Championships at Soule Park Golf Club in Ojai.
San Marcos 399
A. Wiph 77
B. Wiph 88