NORMAN – Steven Parker's fingertips saved the night - and the season - for Oklahoma.
Playing without starting quarterback Baker Mayfield for the second half, the Sooners watched a 17-point lead evaporate in the fourth quarter after forcing four turnovers and holding TCU to 210 yards through the first three quarters.
After scoring a touchdown with 51 seconds to play, No.18 TCU elected to go for the win with its third-string quarterback instead of the tie. Parker knocked down a pass at the line of scrimmage that would have given the Horned Frogs the lead.
Zack Sanchez, who picked off two passes, recovered the onside kick to seal the 30-29 victory.
Playing in front of the third-largest crowd in Oklahoma history, the No. 7 Sooners (10-1, 6-1 Big 12 Conference), who reached the 10-win mark for the 13th time under Bob Stoops, won its fourth game against a ranked team this year and avenged a four-point loss to TCU in the process.
Running back Samaje Perine missed time with a leg injury early in the second half but came back to run for 188 yards and one touchdown. The Sooners’ defense kept TCU (9-2, 6-2) at bay with six-straight possessions of three plays or fewer after the Horned Frogs scored a touchdown on their first possession the second half, then TCU roared back in the fourth quarter.
In the first half, Mayfield took a hit to the head on a play that led to the ejection of TCU linebacker Ty Summers. Mayfield finished the first half but stayed on the sideline in the second half. Okahoma, which broke the school record for consecutive sellouts, capped an undefeated home record for the ninth time under Stoops.