Lucas Siewert scored a career-high 17 points, including two three-point baskets down the stretch, and Colorado beat visiting Stanford 64-56 on Sunday for its third win in a row.
George King had 11 points and McKinley Wright had 10 for Colorado (15-10, 7-6 Pac-12), which beat Stanford (13-13, 7-6) for a ninth straight time.
"Coach challenged me to do better on the glass after the Cal game," said Siewert, who had seven rebounds against Stanford after having only a couple against Cal.
"My shots were falling today, which made things easier. I want my performance today to be the standard on how I should play going forward."
The Cardinal were led by Dorian Pickens' 18 points. Daejon Davis had 12 points and Reid Travis scored 10 for Stanford, which fell to 2-5 in conference play after a 5-1 start.
Trailing by 11 points at the half, Stanford gradually cut into the deficit and pulled to within 45-42 on consecutive three-pointers by Isaac White and Pickens with 9 minutes 1 second left. Pickens made another three-pointer to get the Cardinal within a point with 6:35 to play.
But the Buffaloes put together a 12-3 run that Siewert punctuated with two three-pointers to take a 10-point edge with 1:07 remaining.