Jonny DeLuca singled in Taylor Adams in the bottom of the 10th inning to lead Oregon to a 1-0 win over Washington Sunday afternoon at PK Park.
Adams singled with on out and went to third on a single by Tanner Smith. Sam Novitske walked to load the bases before DeLuca singled him home as the Ducks (11-7) improved to 1-2 in Pac-12 play.
Spencer Steer had two hits for Oregon.
Brett Walker threw 3 1/3 scoreless innings before Ryne Nelson came out of the bullpen to strike out eight in 5 2/3 innings. Nico Tellache pitched the 10th to earn the victory.
Oregon returns home next weekend to host Arizona State, the last unbeaten in the country at 19-0.