Tia Presley reached 32 points for the third time in four games in leading Washington State over Oregon 108-88 on Sunday.
The 108 points are the third-most in the history of the program and the 42 field goals made are a school record.
Presley was 13 of 17 from the floor as WSU shot 53 percent. Lia Galdeira scored 27 points, two shy of her season high. Mariah Cooks added 13 and Shalie Dheensaw added 12 and a career-high eight assists.
Washington State (15-13, 9-7 Pac 12) led by one at 44-43 after a tightly contested first half in which neither team led by more than six points.
The Cougars took over midway through the second half. Tied at 64 with 10:18 left, WSU went on an 11-1 run, punctuated by Galdeira’s 3-pointer, to stretch the lead to 75-65. An 11-2 run late cemented the win.
The Cougars shot 66 percent in the second half while holding the Ducks to 33 percent in that time.
Katelyn Loper led Oregon (13-14, 4-12) with 22 points.
The Cougars’ 15 victories are the most since the 1995-96 team won 17.
Before the game, seniors Hana Potter, Brandi Thomas and Sage Romberg were honored as was senior student-manager Randyn Stutesman.
WSU ends the regular season with games at Cal on Thursday and Stanford on Saturday.