With the score tied late in regulation against Baylor, OSU guard Tiffany Bias drove hard to the hoop but just missed a layup, forcing overtime. Baylor's Odyssey Sims converted a three-point play with 3.8 seconds remaining in the extra period to give the 12th-ranked Lady Bears a 69-66 victory over the eighth-ranked Cowboys on Sunday.
Bias scored 14 of her 17 points after halftime to help Oklahoma State rally from 16 points down in the second half, but she couldn't hit the shot she needed.
"It's just one of those things where, it's in and out and it was a tough night for me the whole night," she said. "I wish I would have made it, but at the same time, it's just one of those things."
Sims, who entered the game as the nation's leading scorer with 30.4 points per game, had a season-low 17 on 7-for-27 shooting. Bias, who led the charge against Sims, was proud of the way the Cowgirls defended Sims.
"My team had my back the whole night," Bias said. "It was a team effort the whole night. We did a great job shutting her down. She was way below her average, and that's all you can hope for."
Sims had eight rebounds and eight assists. Makenzie Robertson scored 18 points and Nina Davis added 16 points and 17 rebounds for the Lady Bears (16-3, 6-1 Big 12), who moved past the Cowgirls to the top of the conference standings.
Roshunda Johnson scored 15 points, Kendra Suttles scored 12 and Brittney Martin added nine points and 11 rebounds for the Cowgirls (17-2, 6-2).
With Sims sitting out with four fouls and the Lady Bears trailing by four late in regulation, Robertson hit a three that cut Oklahoma State's lead to 57-56 with 1:36 to go. The basket allowed Baylor coach Kim Mulkey to bring Sims back into the game.
Suttles made a hook shot with 40.8 seconds left to put the Cowgirls up by three.
Baylor's Robertson hit another 3-pointer with six seconds left to tie the score at 61. Oklahoma State pushed the ball down the floor, and Bias missed the layup.
Oklahoma State had the ball late in overtime with the score tied, but Suttles' 3-pointer was blocked by Kristina Higgins and Sims rebounded before scoring the game-winning bucket. OSU had one last chance, but Sims stole the ball from Bias to end the game.
Baylor led 33-24 at halftime, and two 3-pointers by Robertson helped Baylor expand its lead to 45-29 in the early minutes of the second half before Oklahoma State rallied.
"We're a fighting team," Bias said. "We've always fought. As we've matured over the years, that's one thing we have thrived on. We don't just back down. We're going to keep pushing."
Follow Cliff Brunt on Twitter: http://www.twitter.com/CliffBruntAP.