FORT WORTH, Texas — Trevone Boykin threw an 8-yard touchdown pass to KaVontae Turpin in the second overtime and No. 15 TCU beat No. 7 Baylor 28-21 on a rainy Friday night, knocking the Bears out of contention for their third straight Big 12 title.

Boykin, playing with a heavily taped right ankle after missing a game, threw for 148 yards and two touchdowns, and ran for a 1-yard score in the first overtime. Josh Carraway returned a fumble 56 yards for a touchdown for the Horned Frogs (10-2, 7-2 Big 12).

Devin Chafin ran for 119 yards and two scores, and caught a 4-yard TD pass in the first overtime, but was stopped short on a fourth-and-1 play to end the game.

With the loss by Baylor (9-2, 6-2, No. 7 CFP), the Big 12 champion will be the winner Saturday night when No. 5 Oklahoma plays at No. 9 Oklahoma State. The Sooners, No. 3 in the latest CFP rankings, and Cowboys are both 10-1 overall and 7-1 in the Big 12.

TCU got to 10 wins for the 10th time in the past 14 seasons under coach Gary Patterson, and a measure of revenge for that 61-58 loss in Waco last season.

In October 2014, Baylor overcame a 21-point deficit in the final 11 minutes and won 61-58 with a field goal on the final play.

That was the only loss by the Horned Frogs, who shared the Big 12 title with Baylor before the league’s two private schools were the first teams left out of the inaugural College Football Playoff.

After Boykin’s pass to freshman Turpin to start the second overtime, Baylor had fourth-and-1 from the 16 when quarterback Chris Johnson took the snap and plunged forward. It would have been close, but there was never a measurement because coach Art Briles was calling for a timeout from the sideline before the snap.

When the Baylor lined back up, Chafin took the handoff and ran into TCU defenders Julius Lewis and Ty Summers, the last of Summers’ school-record 23 tackles.