Darryl Harris rushed for 105 yards and a touchdown, and Eric Allen returned an interception 92 yards for another score as Arizona State beat error-prone Washington State, 38-7, in a Pacific 10 game Saturday night at Tempe, Ariz.
The Sun Devils led, 26-0, at halftime en route to improving their record to 4-2 overall and 1-1 in Pac-10 play. Arizona State was beaten by Washington, 27-14, last week.
Washington State lost its fourth straight and fell to 2-4 overall and 0-2 in the conference.
Allen's interception return was the third-longest in Arizona State history and the longest ever allowed by the Cougars. The senior cornerback stepped in front of Washington State split end Tim Stallworth and raced untouched along the sidelines for a 17-0 lead 2:47 into the second quarter.
Washington State avoided a shutout when Timm Rosenbach threw a seven-yard touchdown pass to Victor Wood with 1:24 left in the third quarter.