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.

Josh Kelly had three touchdown receptions, Cameron Ward passed for 404 yards and accounted for five scores, and No. 21 Washington State withstood a late rally to upend No. 14 Oregon State 38-35 in the Pac-12 Conference opener for both teams.