Norman, Okla. ? Another strong showing by Oklahoma’s defense has the No. 2 Sooners another step closer to their goal of a Big 12 title.

Chris Brown became the first back in four seasons to gain 100 yards against Oklahoma, but the Sooners came up with four turnovers and turned back three fourth-quarter drives in a 27-11 victory over No. 13 Colorado on Saturday.

Brown, the nation’s leading rusher at 162.9 yards per game coming in, needed 25 carries to gain 103 yards on a cold, sometimes rainy day.

“He’s a great player. He deserves his reputation,” Oklahoma coach Bob Stoops said. “We were fortunate to make our plays a part of the time. He made his, but in the end to keep them to 11 points is pretty special.”

With their third straight victory over a ranked team, the Sooners (8-0, 4-0 Big 12) justified their position atop the Bowl Championship Series ratings, which determine who will play for the national title. Oklahoma also beat then-No. 3 Texas and then-No. 9 Iowa State.

Nate Hybl threw three touchdown passes, all of them after Colorado mistakes left him with a short field. The three TD drives covered just 39, 24 and 9 yards.

Quentin Griffin ran for 128 yards on 21 carries and Kejuan Jones had 82 yards on 20 carries for the Sooners, who had been 0-8-1 against Colorado since 1988.

In the first half, Colorado (6-3, 4-1) lost two fumbles, had a pass intercepted, muffed a pooch kickoff and had a field goal blocked. Oklahoma turned the mistakes into 17 points to lead 20-3 at halftime, and it could have been worse.

Colorado’s first possession of the third quarter ended with an interception by linebacker Teddy Lehman, who returned it 31 yards to set up Hybl’s third TD pass, making the score 27-3.

“It’s the same story all year,” defensive tackle Kory Klein said. “No one is waiting on anyone else. Someone steps up and makes the big play. That’s the kind of defense we have.”

Hybl was 10-of-25 for 105 yards and two interceptions. Robert Hodge of Colorado was 18-of-37 for 174 yards and two interceptions.

Colorado's Roderick Sneed (26) fumbles after being a hit by Oklahoma's Trey DiCarlo (83) during the first quarter of their Big 12 game. The fumble was recovered by Oklahoma's Gayron Allen. The second-ranked Sooners went on to defeat the No. 13 Buffaloes, 27-11, Saturday in Norman, Okla.

No. 7 Texas 27, Nebraska 24

Lincoln, Neb. Chris Simms passed for a career-high 419 yards, and Nathan Vasher intercepted Jammal Lord’s pass at the 1 yard-line in the closing seconds.

Roy Williams caught 13 of Simms’ passes for 161 yards as the Longhorns (8-1, 4-1 Big 12) handed the Cornhuskers (7-3, 3-2) just their second home loss since Oct. 31, 1998.

On that day, the Longhorns came into Lincoln and won 20-16, snapping Nebraska’s school-record streak of 47 consecutive victories at Memorial Stadium. Since that defeat, the ‘Huskers had won their next 26 at home.

Until Saturday, Nebraska had won 74 of its previous 75 home games. Texas, led by coach Mack Brown, is the only team to win at Memorial in all that time.

Simms’ performance overshadowed a career day for Lord, who ran for 234 yards and threw a 60-yard TD pass.

Lord became the third quarterback in Nebraska history to rush for 1,000 yards in a season, joining Eric Crouch, who did it last season and Scott Frost, who hit the mark in 1997.

No. 22 Iowa State 42, Missouri 35

Ames, Iowa Seneca Wallace set a school record with 493 total yards, and Mike Wagner scored on a 1-yard run with 32 seconds left to give Iowa Stat the victory.

Iowa State (7-3, 4-2 Big 12) broke a two-game losing streak, became bowl eligible for the third straight year and stayed in contention for the league’s North Division title.

Missouri (4-5, 1-4) kept the heat on the Cyclones all afternoon with redshirt freshman quarterback Brad Smith, who set a school single-season record for total offense.

But Wallace was too good on this day and directed a 13-play, 93-yard drive for the winning touchdown. He finished 31-of-47 for 425 yards and a touchdown, and carried 10 times for 68 yards and another TD.

Oklahoma State 28, Texas A&M 23

Stillwater, Okla. Tatum Bell rushed for 143 yards and three touchdowns and Vernon Grant intercepted a pass in the end zone with 1:00 left for Oklahoma State.

Bell scored from 64, 5 and 2 yards as the Cowboys (4-4, 2-2 Big 12) defeated a traditional conference power for the second time in as many games.

Grant’s interception of Dustin Long’s pass ended a late Aggies rally as the Cowboys beat Texas A&M (5-4, 2-3) for the first time since 1988, a span of six straight losses.

Long finished 25-for-43 passing for 332 yards and two touchdowns to lead the Aggies. But he also threw two interceptions. Tight end Greg Porter added 9 catches for 154 yards and a touchdown for Texas A&M.

The Cowboys beat Nebraska 24-21 for the first time in 41 years two weeks ago to keep bowl hopes alive. Oklahoma State must win two more games with Kansas and Baylor on the schedule to be eligible for a bowl.

Oklahoma State dominated the first half of this homecoming game, gaining 273 yards against the Aggies’ vaunted Wrecking Crew defense en route to a 28-14 lead at halftime.

It was the second straight week the Aggies defense has been shredded after Nebraska rushed for 381 yards against them last weekend.

Texas Tech 62, Baylor 11

Lubbock, Texas Kliff Kingsbury threw for three touchdowns, 373 yards and another passing record.

Tech’s backup quarterback B.J. Symons added three more touchdowns passes after replacing Kingsbury midway through the third quarter. Running back Foy Munlin ran for his first two touchdowns of the season.

Tech (6-4, 3-2 Big 12) moved the ball easily against the Bears defense, which gave up 654 yards to Tech.

Baylor (3-6, 1-4) struggled on offense. The Red Raiders kept pressure on Aaron Karas as he completed 23 of 35 passes for 254 yards.

Kingsbury, who injured his right ankle slightly in the first quarter and hobbled until coming out, moved past Louisville’s Chris Redman in NCAA Division IA career passing attempts. Kingsbury now has 1,696; Redman’s record was 1,679.