Keiton Page scored 19 of his 24 points in a dominating first half, and Oklahoma State withstood a brief rally in the season's third Bedlam game to beat Oklahoma 81-67 on Wednesday night in the opening round of the Big 12 tournament.
Oklahoma State (22-9) raced to an 18-point lead in the first six minutes, then allowed Oklahoma to creep back in it with a shaky start to the second half. Obi Muonelo kept the Sooners from completing the comeback, scoring 10 of his 15 points after the rally to send the seventh-seeded Cowboys into Thursday's quarterfinals against ninth-ranked Kansas State, the No. 2 seed.
Oklahoma (13-18), seeded 10th, played without leading scorer Willie Warren (ankle) and will miss the postseason a year after reaching the NCAA regional finals.
