Cory Jefferson scored 25 points and Baylor overcame a buzzer-beater that forced overtime to hand Oklahoma State its seventh straight loss with a 70-64 victory Monday night in the Cowboys' last of three games without suspended guard Marcus Smart.
The Bears (17-9, 5-8 Big 12) won in overtime at home for the second time in three days. Baylor's Brady Heslip hit a tying 3-pointer at the buzzer in regulation in a double-overtime victory against Kansas State on Saturday.
The Cowboys (16-10, 4-9) can finish no better than .500 in conference but will get Smart back from his three-game suspension for pushing a heckling fan late in a loss at Texas Tech. He returns Saturday at home in the rematch with the Red Raiders.
Markel Brown and Phil Brown tried to make up for Smart's absence. Brown scored 26 points and Forte, Smart's high school teammate in the Dallas area, added 20.