OKLAHOMA CITY (AP) Oklahoma State rallied from a 4-0 deficit with eight runs in the fifth inning and beat Texas 10-4 on Wednesday in the Big 12 tournament.
Conor Costello had four RBIs and Donnie Walton knocked in three for the Cowboys (36-18), who will face TCU on Friday.
Costello's grand slam highlighted Oklahoma State's decisive rally, and Walton added three hits for the Cowboys as they pulled away from the Longhorns.
Ty Culbreth (8-4) started strong but faded in the fifth for Texas (22-40), allowing six runs in just over four innings.
The Longhorns will play Baylor Thursday.