Chucky Jeffery scored 25 points and No. 19 Colorado rallied to beat Oregon State 66-63 in overtime Sunday for the Buffaloes' ninth win in a row.

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.