Gennifer Brandon had 13 points and 11 rebounds, as seventh-ranked California held off No. 20 Colorado, 59-56, Friday night.
Layshia Clarendon also had 13 points, while Brittany Boyd scored 10 for the Golden Bears (16-2, 6-1 Pac-12), who rallied from a 16-point first-half deficit.
Brittany Wilson had 11 points and Chucky Jeffery added 10 for the Buffaloes (15-3, 4-3), who had won four in a row.
Arielle Roberson missed a pair of potential tying shots in the final two minutes for Colorado with one of the shots blocked by Brandon. Clarendon hit one free throw with 15 seconds remaining for a three-point edge. Wilson's desperation attempt from the left corner missed at the end.