Tra Holder scored 20 points, Savon Goodman added 17 and Arizona State knocked off No. 23 USC, 74-67, on Friday night.
Nikola Jovanovic had 25 points and 15 rebounds for the Trojans (18-6, 8-4 Pac-12), who would have been within a half-game of first-place Oregon in the Pac-12 with a victory. Gerry Blakes added 14 for Arizona State.
The Sun Devils (14-11, 4-8) have won two conference games in a row for the first time this season. Arizona State took the lead with a 10-2 run to start the second half and never trailed again.