Spencer Dinwiddie scored all 15 points in the second half and Colorado routed Arizona State 63-49 on Saturday.
Andre Roberson and Austin Dufault added 12 points apiece for the Buffaloes (17-8, 9-4 Pac 12), who won their third straight game against the Sun Devils (8-17, 4-9) and have won three of four overall.
Jonathan Gilling scored 11 points and Trent Lockett added 10 for Arizona State, which has lost three of four and eight of its last 11.
Gilling hit a 3-pointer and Ruslan Pateev added a layup as the Sun Devils trimmed a seven-point halftime deficit to 31-26 with 17:34 remaining.
But Dinwiddie hit the second of his three 3-pointers and Nate Tomlinson added a 3-pointer to spark an 8-0 run that gave Colorado a 39-26 lead with 14:45 remaining.
The Buffaloes led by as many as 19 in the second half.
