Senior Paul Reynolds and sophomore Ryder Roberts led the Bruins with two goals apiece.
UCLA has won three of last four over USC, and was led by Danny McClintick's two goals in the fourth.
The Bruins were led by Matt Farmer, Gordon Marshall and Danny McClintick, each with two goals.
Freshman Alex Roelse led UCLA with a season-high seven goals (photo by John Hilinski).
UCLA is one of five unbeaten teams in Stockton, Calif., this weekend for the NorCal Tournament.