Trailing Washington by four at halftime, the Sun Devils stormed back for a 44-20 victory on Saturday night behind a 76-yard touchdown run by Keegan Herring and a 57-yard touchdown run by Dimitri Nance.

It's the fourth time in seven games ASU has overcome a double-digit deficit or trailed in the second half. The Sun Devils have outscored their opponents 136-29 in the second half.

The Sun Devils (7-0, 4-0 Pac-10) are the Pac-10's last unbeaten after No. 2 California lost at home to Oregon State earlier Saturday. Washington (2-4, 0-3) has lost four straight.

The Sun Devils took a 20-17 lead early in the third quarter on a 21-yard pass from Rudy Carpenter to Rudy Burgess, who made a leaping catch at the pylon and got a foot down before tumbling out of bounds.

Five minutes later, Nance broke through the right side of the line for a career-long 57-yard score to put the Sun Devils up 27-17.

Herring then went around left end and raced 76 yards down the sideline for the longest run of his career. The junior finished with 119 yards on 10 carries.

Herring and Nance played big roles on a night the Sun Devils lost starting tailback Ryan Torain, who injured his left leg early in the first half and watched the rest of the game on crutches. ASU did not disclose Torain's exact injury.

Rudy Carpenter completed 20-of-31 passes for 227 yards and two touchdowns for Arizona State, and he threw an interception.

Washington redshirt freshman quarterback Jake Locker completed 10-of-28 passes for 142 yards and a touchdown, and he had an interception returned for a touchdown. Locker also ran 32 yards for a score.