Clint Chelf completed 19 of 37 passes for 265 yards and three touchdowns to lead No. 15 Oklahoma State to a 42-6 victory over Kansas Saturday.
Desmond Roland added 44 yards and a touchdown on 16 rushes for the Cowboys (8-1, 5-1 Big 12), who won their fifth straight game. Roland also had a 19-yard reception for a score early in the second quarter that gave OSU a 21-0 lead.
Montell Cozart threw for 58 yards while rushing for 55 on 18 carries for Kansas (2-7, 0-6), which lost its sixth in a row. Tony Pierson returned from a three-game absence due to a concussion and gained 87 yards on six rushes.
Oklahoma State jumped on top immediately when Justin Gilbert returned the opening kickoff 100 yards for a touchdown.