PULLMAN — Taylor Kelly threw five touchdown passes and ran for two more scores as No. 25 Arizona State beat Washington State 55-21 on Thursday night.
Kelly threw for 275 yards and rushed for 66 to help the Sun Devils (6-2, 4-1 Pac-12) qualify for a bowl and win their first road game of the season after two losses.
Connor Halliday had 300 yards passing for Washington State (4-5, 2-4), which has lost four of five. Halliday, who set an FBS record in his previous game with 89 pass attempts in a loss to No. 2 Oregon, was 29 of 54 with two touchdowns.
Marion Grice ran for 94 yards as ASU scored at least 50 points for the fifth time this season. Kelly completed 22 of 31 passes and was intercepted once.
Washington State’s Gabe Marks fumbled after an 18-yard reception, and Robert Nelson recovered to give Arizona State the ball on the WSU 39. Kelly fired an 11-yard touchdown pass to Jaelen Strong all alone in the end zone for a 21-0 cushion with 3:20 left in the first quarter.
Marks redeemed himself on the first play of the second, taking a short pass from Halliday for a 34-yard touchdown.
Late in the second quarter, the Cougars marched 75 yards and Rickey Galvin caught a 15-yard touchdown pass from Halliday to cut ASU’s advantage to 42-14 at halftime.
Washington State scored first in the second half, on a 4-yard run by Jeremiah Laufasa to make it 42-21. The Sun Devils replied with Kelly’s 23-yard touchdown pass to Foster.
Zane Gonzalez added a pair of field goals for Arizona State in the fourth.
The Sun Devils lead the series 25-13-2, having won nine of the past 10 games.
Both teams were coming off bye weeks.