Hallie Wilson hit a walk-off grand slam as No. 7-ranked Arizona beat Oregon State 9-0 via the mercy rule Saturday at Hillenbrand Stadium.
Estela Piñon (8-4) earned the win, allowing six hits in five innings. She struck out three in the Wildcats’ first Pac-12 win of the year.
Kellie Fox also homered for Arizona (26-6, 1-3), which hosts the Beavers at 5 p.m. today. The game will air on Pac-12 Arizona.