Jordan Loveridge had 18 points and six rebounds, Renan Lenz had 14 and Princeton Onwas 12 to help the Utes (18-9, 7-8 Pac-12) break a two-game losing streak. Utah dominated around the basket from start to finish.
The Utes outrebounded the Sun Devils, 44-36, and had a 38-26 edge in points in the paint.
Shaquielle McKissic had 16 points, and Egor Koulechov and Bo Barnes scored 11 apiece for Arizona State, (19-8. 8-6).
Joseph Young had 18 points for Oregon(18-8, 6-8 Pac-12), which appears to be getting back on track after a midseason slump.
It was the third straight win for Oregon, which started the season 13-0 before losing eight of its next 10.
DaVonte Lacy scored 19 to lead the Cougars (9-18, 2-13), and D.J. Shelton had 14 points and 10 rebounds.
Washington State shot 27.3% in the second half.