Chiney Ogwumike notched a double-double with 26 points and 15 rebounds to lead the fourth-ranked Stanford Cardinal over Southern California, 79-55, on Friday at Galen Center.
Joslyn Tinkle followed with 17 points and 11 boards and Mikaela Ruef added 12 points for the Cardinal (23-2, 12-1 Pac 12), who captured their ninth consecutive win.
The Trojans (8-16, 5-8) shot just 33.3 percent in their fifth straight defeat and eighth in nine games. Alexyz Vaioletama scored 14 points and Cassie Harberts had 13 in the setback.
Harberts scored on a layup with 3:48 to play in the first half to cut the Trojans' deficit to 24-19, but Stanford closed out the half on 7-0 run to take a 31-19 edge into halftime.
USC stayed within 12 points over the initial 5 1/2 minutes of the second half, but fell behind 52-34 soon after and never came closer than 17 the rest of the way.