Spencer Dinwiddie scored 13 points and had a key block in the late going, helping Colorado pull away for a 60-50 victory over Utah on Thursday night.
Sabatino Chen added 12 points and Andre Roberson had 10 as Colorado (18-8, 8-6 Pac-12) rebounded from its overtime loss to Arizona State last weekend despite missing freshman star Josh Scott, who sat out with a concussion suffered in the game against the Sun Devils.
The Buffaloes gained a split of their season series with the Utes, who took the first meeting 58-55 in Utah earlier this month.
Jordan Loveridge had 12 points to lead Utah (11-15, 3-11 Pac-12). Jason Washburn and Brandon Taylor added 10 points apiece.
Roberson, who is leading the nation in rebounding, also had 13 boards for the Buffaloes. He increased his career total to 1,006. He ranks second in school history behind Stephane Pelle, who had 1,054 from 1999-2003.