The really hard games begin next week.
But first the Sooners dispatched Iowa State, 52-16 in a game that saw Oklahoma come out strong, then go to sleep in the second quarter, and then end the game like gang-busters.
Baker Mayfield threw for 342 yards and three touchdowns and rushed for another.
The Sooners, ranked 15th in the first College Football Playoff poll, finish the season with No. 6 Baylor, No. 8 TCU and No. 14 Oklahoma State.
OU jumped out to a 21-3 lead, but were held scoreless in the second quarter, allowing Iowa State to trim into the margin with a pair of field goals.
But the Sooners scored on their first five second-half possessions to blow out the Cyclones. Both Samaje Perine and Joe Mixon had touchdown runs in the second half.
Trevor Knight, on in relief of Mayfield, threw a 55-yard touchdown to Mark Andrews.
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