Jakimovski added eight rebounds, two steals and a block. Noah Williams and TJ Bamba each scored 10 points for Washington State (11-7, 4-3 Pac-12). Williams also had three of the Cougars' 10 steals.
Lazar Stefanovic led Utah (8-13, 1-10) with 11 points.
The Cougars shot just 37% — Utah made 18 of 46 (39%) from the floor — but attempted 19 more field goals than the Utes. Washington State outrebounded Utah 39-29, including an 18-6 advantage on the offensive glass used to build a 15-4 advantage in second-chance points, and outscored the Utes 19-3 in points off turnovers.