The Buffaloes (24-5, 13-5 Pac-12) trailed by 16 points in the first half, and by 10 with 11:46 to play. But Jeffery’s 3-pointer began a 15-2 run that saw Colorado take the lead for the first time.
Colorado led until Jamie Weisner’s 3-pointer with 9 seconds left tied it at 56. In overtime, Brittany Wilson’s 3-pointer in the first minute put the Buffs ahead to stay. Arielle Roberson’s two free throws with 6 seconds left ended the scoring.
Roberson finished with 10 points and 11 rebounds—eight on the offensive glass. Ali Gibson scored 15 points and Weisner had 14 points and 13 rebounds for the Beavers (10-20, 4-14).
Colorado is the No. 4 seed in the Pac-12 tournament next weekend.