No. 10 Texas Tech routs Oklahoma State 52-27

Stillwater, Oklahoma (AP) — Thomas Castellanos completed 263 yards and scored four touchdowns for No. 10 Texas Tech, while Malcolm Simmons returned the opening kickoff 97 yards for a touchdown in a 52-27 victory over Oklahoma State on Sunday. The reigning conference champions, who lost to Oregon in last season's College Football Playoff quarterfinal, took an early 21-0 lead and held off a 17-0 surge by the Cowboys, led by quarterback Drew Mestemaker.

Texas Tech's defense, ranked 136th in the nation for passing yards allowed, sealed the game with a shutout in the second half. Mestemaker, who had thrown for 300 yards in his last eight games, completed 277 yards and two interceptions before being replaced by freshman Broderick Vehrs in the final minutes. With the loss, Oklahoma State's chances of making the Big 12 championship game and the College Football Playoff appeared to be gone. The Cowboys will face Arizona State on Saturday.