Brittany Prentice scored four goals and Halie Johnson added three to power San Marcos to an 8-3 win over Royal at the Villa Park girls water polo tournament.
The Royals were coming off their first loss of the season.
“Halie Johnson had her best game of the season,” said San Marcos coach Chuckie Roth.
The Royals (4-1) continue tournament play Saturday at Huntington Beach High.