Despite three opportunities to win the first set, the Cougars were still swept by Baylor to end their season.
WSU advances to the second round with a dominant sweep of Northern Colorado in the Waco regional.
WSU had to hold off the top-20 Ducks to avoid the reverse sweep.
Magda Jehlarova’s 21 kills led the Cougs as they completed the reverse sweep to stay alive in the race for the Pac-12 title.
A dominant third set gave WSU its fourth consecutive sweep on the road.