The Cougars will face the Griz in Missoula, Friday, Sept. 4 at 4 p.m.
Senior Cara Wegner and junior Nicolle Marlow both netted goals as WSU won, 2-1.
The WSU soccer team will play BSU, Sunday, Aug. 30 at noon (PT).
The Cougars defeated Idaho, 3-1, in front of 1,232 fans at Lower Soccer Field, Monday night.
The WSU soccer match scheduled for 7 p.m., Sunday, has been postponed until Monday, Aug. 24 at 7 p.m.
WSU defeated Seattle, 3-1, at Championship Field, Friday.
Washington State will face the Redhawks, Friday, in Seattle before returning home to face the Vandals, Sunday.
Washington State defeated Eastern Washington, 3-1, Sunday at Lower Soccer Field.
WSU will face Eastern Washington at Lower Soccer Field, Sunday, Aug. 16 at 7 p.m.
Under the direction of first-year head coach Todd Shulenberger, WSU will seek a fifth-straight postseason appearance.
The Cougars begin their season with an exhibition match against Eastern Washington, Aug. 16.
Three incoming freshmen on the WSU soccer team earned All-America and all-state honors.