Austin Dufault and Askia Booker each added 11 points for Colorado (12-6, 4-2 Pac-12), which won for the 10th time in 11 games at home this season.
The Sun Devils (6-12, 2-4) began the game without their leading scorer, Trent Lockett (13.9 ppg), who was held out after spraining his right ankle in last week’s victory over Oregon State. Arizona State finished without head coach Herb Sendek, who was ejected with 4:12 remaining after drawing two technical fouls in a row.
Chris Colvin opened in Lockett’s place, his first start since late November, and finished with a career-high 15 points. Carrick Felix added 13 points and Jonathan Gilling had 12 for the Sun Devils, who have lost three of their last four.