Sobrato suffered its first loss of the season Thursday, falling 3-0 to Westmont on the road.
The Bulldogs fall to 2-1 overall (1-1 in Blossom Valley Athletic League play).
The team was led by Jordan Westall and Samantha Nydam who each had eight kills against the 14-3 Warriors.
Sobrato kept the match close in the second game, but never broke 20 points in any of the three sets, losing 12-25, 19-25, 16-25.
Middle blocker Siena Schilling had a strong night, recording five blocks and three kills.
Defensively, Natalie Delman led with 12 digs, followed by Riley Moeder and Nydam with 10 digs.
Miranda Wertz had 28 assists and three aces.