Talia Walton had 15 points and 10 rebounds and Kristi Kingma had 14 points and eight rebounds for the Huskies (11-5, 3-2 Pac-12), who never trailed in the game.
Lia Galdeira led Washington State (5-11, 1-4) with 14 points, 12 rebounds and four steals before fouling out in the final minute.
Washington shot 40 percent in the first half and built a 36-21 lead. The Huskies struggled in the second half, making just 4 of 21 shots for 17 percent, to finish the game at 30 percent.
The Cougars weren't able to get closer than within four points in the second half.
More Sports Headlines
Snohomish mixed martial artist returns to her first love Mariners beat Twins 4-3 in 11 innings Charles scores 29 points, Liberty beat Storm 78-62 Park wins Women's British Open, captures 4th different major Perry wins 2nd straight Champions Tour's 3M Championship Merritt shoots 67 to win Quicken Loans National by 3 shots Triple Crown winner American Pharoah wins $1.75 million Haskell Invitational Bills' Ryan names Incognito starting left guard
Our new comment system is not supported in IE 7. Please upgrade your browser here.