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MANHATTAN, Kan. -- Bobby Walker intercepted two Seneca Wallace passes and returned them for touchdowns 23 seconds apart as Kansas State routed Iowa State 58-7 on Saturday.
The Wildcats followed those plays with two more quick touchdowns off turnovers during a 28-point third-quarter burst that led to their biggest margin of victory in a series played every season since 1917.
It was the Cyclones' most lopsided loss since 56-3 to Oklahoma in 1987.
Iowa State entered hoping to compete for the North title. But in their ninth consecutive loss to Kansas State, the Cyclones lost three fumbles, threw three interceptions and were penalized 12 times for 100 yards.
Ell Roberson and Darren Sproles scored two touchdowns, and Sproles became the sixth Kansas State running back to go over 1,000 yards in a season.
COLORADO 42, MISSOURI 35 (OT): Chris Brown ran for 211 yards and scored his third touchdown of the game on a 1-yard run in overtime for the visiting Buffaloes.
The nation's leading rusher also scored on runs of 10 and 15 yards, giving him 17 rushing touchdowns this season.
The Tigers, who rallied from a 27-7 third-quarter deficit to take a 28-27 lead with three consecutive touchdowns, tied it on Zack Abron's touchdown with 1:55 left to force overtime.
Brown, who has 1,617 yards this season, carried six times for 24 yards in overtime, including a 12-yarder to the 4.
On Missouri's overtime possession, Darius Outlaw caught a pass on third and 10 but fumbled after being hit by J.J. Billingsley. Kory Mossoni recovered to end it.
TEXAS 41, BAYLOR 0: Chris Simms threw three touchdowns, including a 73-yarder to Roy Williams on the second play of the game, for the host Longhorns.
After consecutive tough victories against No.12 Kansas State, No.21 Iowa State and Nebraska, Texas needed minimal effort to beat the Bears.
Simms threw touchdowns of 5 yards to B.J. Johnson and 15 to Tony Jeffery, and Cedric Benson ran for a 10-yard score that made it 31-0 at halftime.
The Longhorns defense took over from there, allowing 34 total yards in the first half. After Texas took a 7-0 lead, its next four scoring drives started inside the Bears 40.
NEBRASKA 45, KANSAS 7: Freshman David Horne ran for 122 yards on nine carries, and Dahrran Diedrick added 107 as the host Cornhuskers became bowl eligible.
Diedrick ran for a 53-yard touchdown on Nebraska's first possession. The Jayhawks tied it on a 50-yard touchdown from Jonas Weatherbie to Byron Gasaway. Nebraska responded with a 30-yard touchdown run by Horne and a 27-yard touchdown from Jammal Lord to Wilson Thomas.
Nebraska added to its lead in the third, when Aaron Terpening picked up a blocked punt and scored to make it 38-7.
TEXAS TECH 49, OKLA. ST. 24: Kliff Kingsbury passed for 425 yards and four touchdowns, becoming the No.5 passer in Division I history, for the host Red Raiders.
Kingsbury, who has 11,394 yards, passed Eric Zeier of Georgia, Peyton Manning of Tennessee and Tim Lester of Western Michigan. He completed 38 of 49 passes.
Down 28-7, the Cowboys cut it to 28-21 early in the third before the Red Raiders put it away.