TCU linebacker Ty Summers (42) and safety Ridwan Issahaku (31) combine to stop Oklahoma running back Rodney Anderson (24) after a short run in the second half of the Big 12 Conference championship NCAA college football game, Saturday, Dec. 2, 2017, in Arlington, Texas. (AP Photo/Tony Gutierrez)
TCU linebacker Ty Summers (42) and safety Ridwan Issahaku (31) combine to stop Oklahoma running back Rodney Anderson (24) after a short run in the second half of the Big 12 Conference championship NCAA college football game, Saturday, Dec. 2, 2017, in Arlington, Texas. (AP Photo/Tony Gutierrez)

Arlington, Texas — Baker Mayfield threw four touchdowns and No. 2 Oklahoma staked claim to a playoff spot with a 41-17 win over No. 10 TCU in the return of the Big 12 championship game on Saturday.

With their record 11th Big 12 title, the Sooners (12-1, No. 3 CFP) are a lock to in the College Football Playoff for the second time in three seasons. They are the only Big 12 team to make the four-team playoff format that started in 2014.

Oklahoma jumped out to a quick 17-0 lead, including Caleb Kelly’s 18-yard fumble return for a touchdown after running back Kyle Hicks’ turnover on the first offensive play by TCU (10-3, No. 11).

Kenny Hill threw two TD passes to get the Horned Frogs within 24-17 at halftime, but Oklahoma scored twice on its first three offensive plays after the break.

Mayfield, the front-runner for the Heisman Trophy to be named next week, finished 15-of-23 passing for 243 yards and take game MVP honors. The first two touchdowns were to tight end Mark Andrews.

Hill opened the second half with three consecutive incompletions. On the first play after the punt, Mayfield hit Mykel Jones for a 55-yard catch-and-run score.

Southeastern Conference

No. 6 Georgia 28No. 4 Auburn 7

Atlanta — Shaking off a blowout loss to Auburn just three weeks ago, Jake Fromm threw two touchdown passes and No. 6 Georgia made its bid for a spot in the College Football Playoff with a victory over the No. 4 Tigers in the Southeastern Conference championship game.

Auburn (10-3) was the hottest team in the country, rolling into Atlanta after wins over Georgia and then-No. 1 Alabama in its last three games. But the Tigers were stymied by two crucial turnovers, a blocked field goal and a Georgia team eager to make up for its embarrassing 40-17 defeat on the Plains.

Nick Chubb, Sony Michel and freshman D’Andre Swift provided a much more effective running game for Georgia than the first meeting, which opened up things for the freshman quarterback. Fromm completed 16 of 22 passes for 183 yards, including a 2-yard touchdown to Isaac Nauta in the second quarter and a 6-yarder to Terry Godwin with just over 13 minutes remaining that essentially sealed Georgia’s victory.

The Bulldogs claimed their first SEC title since 2005 and capped an impressive rise in Kirby Smart’s second season as coach. Georgia went 8-5 a year ago, but Nick Saban’s former defensive coordinator insisted he was establishing a culture that would return the team to national prominence.

Georgia (12-1), which was No. 6 in the latest CFP standings, will surely move into the top four after its dominating performance against the Tigers. Auburn was ranked second in the CFP poll, but managed only 259 yards after piling up 488 in the Nov. 11 rout.

American Athletic Conference

No. 12 UCF 62No. 16 Memphis 55 (2ot)

Orlando, Fla. — Otis Anderson scored on a 1-yard run on the first possession of the second overtime and Central Florida — in what turned out to be its last game under coach Scott Frost — beat Memphis for its third AAC crown in five years.

Frost, the second-year coach and former Nebraska quarterback, took the Cornhuskers’ job after the game.

Memphis (10-2, CFP No. 20) got as far as the UCF 9 in the second OT, but Riley Ferguson’s pass on second-and-goal was intercepted by Tre Neal, giving the Knights (12-0, CFP No. 15) a likely spot in a New Year’s Six bowl.

The top two scoring teams in the country combined for 117 points and 1,479 yards. It was tied at 48 at the end of regulation.

The Knights led 48-34 early in the fourth quarter but the Tigers rallied to tie with 4:13 remaining on Ferguson’s 10-yard touchdown pass to Anthony Miller. Memphis had a chance to win it in regulation but Riley Patterson’s 51-yard field-goal attempt with 28 seconds remaining was wide left.

UCF’s McKenzie Milton was 28 of 40 for 494 yards and five touchdowns. He was selected the game’s most outstanding player.

Conference USA

FAU 41, North Texas 17

Boca Raton, Fla. — Devin Singletary ran for 164 yards and three touchdowns and Florida Atlantic beat North Texas to win its first Conference USA championship in coach Lane Kiffin’s first season.

The Owls (10-3) extended their unbeaten streak to nine games and were undefeated against C-USA opponents this season. Jason Driskel completed 15 of 27 passes for 269 yards and a touchdown, and Kalib Woods had a school-record 208 yards receiving yards. FAU had 633 yards of offense.

The Owls, who beat North Texas (9-4) 69-31 in the regular season, took a 34-0 lead in the first 33 minutes. FAU had gains of 47, 49, 22, 44, 21 and 34 yards in the first quarter alone.

Mid-American Conference

Toledo 45, Akron 28

Detroit — Logan Woodside threw four touchdown passes, Terry Swanson ran for 180 yards and two scores and Toledo beat Akron in the Mid-American Conference championship game at Ford Field.

Receivers Diontae Johnson (118 yards) and Jon’Vea Johnson (103) combined for 221 yards and three touchdowns for Toledo (11-2). The Rockets won their third conference title game and first since 2004.

Akron (7-6) forced five turnovers, but couldn’t overcome a lopsided first half in it second loss to Toledo (11-2) this season.

Woodside threw three touchdown passes in the first half, two to Diontae Johnson, as help the Rockets take a 28-0 lead.