CORVALLIS, Ore. (AP) — Michael Penix Jr. threw for two touchdowns and ran for another, and No. 5 Washington remained undefeated and clinched a spot in the Pac-12 championship game with a 22-20 victory over No. 10 Oregon State on Saturday. It was the final Pac-12 game at Reser Stadium as the conference currently stands. The Pac-12 collapsed over the summer, leaving Oregon State and Washington State as the lone remaining teams. Rome Odunze caught seven passes for 106 yards and two touchdowns for the Huskies, who have won 18 straight games.