Watch: Washington's Robert Upshaw throws down one-handed dunk
After leading by 13 at halftime and by as many as 20 in the first half, Washington saw Oklahoma whittle the deficit to five with 12:40 left to play.
And after the Sooners missed a shot that would have cut the Huskies' lead to three, Upshaw grabbed the rebound and ran the floor to complete the key sequence for Washington.
Upsaw is third on the Huskies in scoring with 10.9 points per game and leads the team in rebounding with an average of 7.1. The 7-footer sat out last season after transferring following his dismissal from Fresno State.