FORT WORTH, Texas — Devin Chafin accounted for every Baylor touchdown, including a 4-yard catch in the first overtime.
But on fourth-and-1 in double overtime, Chafin was stopped short and the seventh-ranked Bears were knocked out of contention for a third consecutive Big 12 title, losing 28-21 at No. 15 TCU on a rainy, chilly Friday night.
"It's not his fault," coach Art Briles said. "It's his running that got us where we were in the game. He got us there, and he's going to get us there again. He'll be over that. We'll make sure that's not an issue."
Chafin ran for 119 yards and had TD runs on Baylor's first two drives of the game, then caught the pass from Chris Johnson when Baylor (9-2, 6-2 Big 12, No. 7 CFP) scored first in overtime.
After Trevone Boykin had a 1-yard keeper score and threw an 8-yard TD to KaVontae Turpin to put TCU ahead for the first time, Baylor faced fourth-and-1 from the 16 in the second overtime.
Johnson took the snap and plunged forward. It would have been close, but there was never a measurement because Briles called for a timeout before the snap.
When play resumed, Chafin took a handoff and ran into defenders Julius Lewis and Ty Summers, the last of Summers' school-record 23 tackles.
As rain-soaked Frogs fans stormed the field, referees stayed momentarily while the spot was reviewed before finally declaring Chafin was short of a first down and the game was over.
"The thing that makes it the worst is not being able to accomplish one of our goals," Baylor All-America senior left tackle Spencer Drango said. "They played a heck of a game. It could have gone either way at the end."
With a win, Baylor would have still had a chance to win another Big 12 title.
Instead, the Big 12 champion will be the winner of No. 5 Oklahoma at No. 9 Oklahoma State on Saturday night. The Sooners, No. 3 in the latest CFP rankings, and Cowboys are both 10-1 overall and 7-1 in the Big 12.
The Bears still have their home finale next Saturday against Texas, and will play in a bowl game for the sixth consecutive season.
TCU got to 10 wins for the 10th time in the past 14 seasons under coach Gary Patterson, and a measure of revenge for a 61-58 loss in Waco last season.
Boykin, his right foot heavily taped after missing the last game, threw for 148 yards and two touchdowns, along with his tying run in the first overtime.
"Crazy, man. A 12-round fight really, to be honest," Boykin said. "We knew the whole game we just had to fight through the weather and the distractions and all the adversity and just play football."
The Horned Frogs won their 13th consecutive home game, all since losing to Baylor two years ago.
In October 2014, Baylor overcame a 21-point deficit in the final 11 minutes and won with a field goal on the final play. That was the only loss last season 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 four-team College Football Playoff.
TCU defensive end Josh Carraway returned a fumble 56 yards for a touchdown to tie it at 14 in the second quarter and forced a fumble that thwarted Baylor's best scoring chance after halftime.
The Bears had four fumbles and five of the game's seven turnovers.
"I think the elements had a whole lot to do with it, without question. I thought Chris played hard, I thought he played valiantly," Briles said. "But it's just hard to be real effective in those conditions."
Johnson is a third-string quarterback who made his first career start a week after freshman Jarrett Stidham broke a bone in his ankle in his third start since replacing injured junior Seth Russel.
Baylor was at the TCU 19 early in the fourth quarter when Carraway leaped into the air and then swiped at the quarterback's arm to knock the ball loose.
It rained throughout the game with several heavy downpours. The start was delayed 50 minutes because of lighting. The TCU band was on the field during the invocation and about to perform the National Anthem when the field was cleared.
"It's frustrating. It's the end of the year, and you've got two good football teams that you want everyone to see the best of everything," Patterson said. "Today was a survival game."
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