Atonye Nyingifa added 15 points, and Thea Lemberger had 12 points and 12 rebounds for the Bruins (18-4, 9-2 Pac-12), now alone in third place in the conference.
Talia Walton led the Huskies (16-6, 8-3) with 18 points. Jazmine Davis scored 17, and Kristi Kingma had 11. Aminah Williams had 13 rebounds for UW, which saw a six-game winning streak end.
At Washington State 57, USC 54: The Cougars claimed their first four-game conference winning steak since 1994-95, using a second-half comeback to overtake the Trojans.
WSU (9-13, 5-6) shot 52 percent after halftime and outscored USC (8-14, 5-6), 34-26.
At No. 4 Stanford 73, Arizona 43: Chiney Ogwumike had 18 points and 12 rebounds for her seventh straight double-double, leading the Cardinal (21-2, 10-1) past the Wildcats (11-11, 3-8).
Joslyn Tinkle added 15 points for Stanford, which won its seventh straight.
At No. 6 California 66, Arizona State 53: Layshia Clarendon scored 18 points, Gennifer Brandon added 10 points and 15 rebounds and the Golden Bears (20-2, 10-1) knocked off the Sun Devils (11-12, 3-8).
Cal’s Talia Caldwell added 14 points while Brittany Boyd had 11 points, seven rebounds and five assists.
At No. 21 Colorado 61, Oregon State 47: Chucky Jeffery had 22 points and 11 rebounds to lead the Buffaloes (17-5, 6-5) over the Beavers (9-14, 3-9).
Jen Reese added 10 points for Colorado, which matched its total for Pac-12 wins from last season.
At Utah 67, Oregon 47: Michelle Plouffe led the Utes (12-10, 3-8) with 15 points, as the pulled away in the second half to beat the Ducks (3-20, 1-10).
