WACO, Texas -- Bernice Mosby scored 21 points and Angela Tisdale added 15 to lead Baylor (No. 14 ESPN/USA Today; No. 15 AP) to a 75-66 win over Oklahoma State on Wednesday night.
The Lady Bears (22-4, 9-3) led 42-32 early in the second half, but the Cowgirls (17-8, 5-7) gradually narrowed the gap.
Andrea Riley's jumper pulled Oklahoma State to within a point at 64-63 with 3 minutes left to play. But Baylor scored nine straight points down the stretch and held the Cowgirls scoreless until the games final 16 seconds.
Mosby scored four points in the late Lady Bears run, while Rachel Allison contributed three.
During the Baylor scoring outburst, Oklahoma State missed its first five shots from the field before Maria Cordero hit a jumper with two seconds remaining.
Danielle Green led the Oklahoma State scoring with 15 points, while Riley contributed 14 and Dominique Chism 10.
Baylor led 39-32 at the half. Mosby fueled the first-half scoring for the Lady Bears with nine points, while Oklahoma State's Riley paced all scorers with 10.