Marion Grice scored four touchdowns, two on passes from Taylor Kelly, and Arizona State used consecutive big plays in the third quarter to race past Southern California 62-41 on Saturday night.
Arizona State (3-1, 1-1 Pac-12) trailed by 1 after USC opened the third quarter with a quick scoring drive.
The Sun Devils ran away from the Trojans after that, scoring a pair of touchdowns 47 seconds apart.
Kelly orchestrated the first, hitting D.J. Foster in stride for a 74-yard touchdown pass. Alden Darby was next, stepping in front of a pass by Cody Kessler for a 46-yard interception return that put the Sun Devils up 34-21.
Tre Madden and Justin Davis each scored three touchdowns for USC (3-2, 0-2 Pac-12).
It wasn't nearly enough with Arizona State piling up yards while scoring its most points ever against the Trojans and matching the most ever scored against USC.
Copyright 2013 Associated Press. All rights reserved.