AUSTIN, Texas (Ticker) -- The only thing preventing Cedric Benson from his third career 200-yard rushing game was his own coaching staff.
Benson ran for 199 yards and two touchdowns on 30 carries before being sitting out much of the fourth quarter as No. 7 Texas notched its 17th consecutive home victory with a 21-10 triumph over Big 12 rival No. 18 Iowa State.
The Longhorns trailed, 10-7, before Benson burst up the middle and scampered diagonally to the right 59 yards for a touchdown 3:29 into the second half.
"It was a basic toss play that everyone learns in the seventh grade," Cyclones coach Dan McCarney said. "The only difference was that there was an NFL running back carrying the ball. We missed a few tackles, but Benson had something to do with that."
With coach Mack Brown resting Benson to prevent an injury in the rain-slicked conditions, true freshman Selvin Young completed the scoring with a two-yard run up the middle with 7:12 to play.
Texas outgained Iowa State on the ground, 245-58.
"We needed to get our running game back on track, but it's really hard to explain to most people why it's not working," Brown said. "We saw a lot of good things, but we didn't have the consistency that we wanted. For whatever reason today, we made some long runs. Before today, we hadn't made any explosive plays out of our running game, but today we did."
Chris Simms connected on 16-of-23 passes for 141 yards and one interception for Texas (7-1, 3-1 Big 12 South), which has won two in a row since a 35-24 loss to Oklahoma in their annual Red River Shootout.
"It felt good to get back to the way we are supposed to be playing," Benson said. "It all began with the guys up front because they created a lot of space by opening up holes. We were tired of not playing like a top team, so we wanted to come out and dominate."
Seneca Wallace, who was harrassed into a 4-of-22 performance in a 49-3 loss to Oklahoma last week, was 18-of-39 for 226 yards, a touchdown and an interception for the Cyclones (6-3, 3-2 North).
"Seneca made some great plays today," Texas defensive end Cory Redding said. "Our focus was to go out there and shut them down. It was the hard work and determination of the defense that allowed our offense to get on the field and make some plays."
Texas took a 7-0 lead on a one-yard run by Benson midway through the first quarter. The Cyclones appeared to close within 7-3 on a 19-yard fireld goal by Adam Benike with 8:38 to play in the second quarter but committed a false-start penalty. From five yards deeper, the kicker pushed it wide right.
Three plays later, Simms' pass sailed through Roy Williams' sailed hands and JaMaine Billups intercepted, setting up a career-long 40-yard field goal by Benike with 6:09 left in the second quarter. Billups is a cousin of Detroit Pistons guard Chauncey Billups.
Iowa State took its only lead on a 16-yard pass from Wallace to Lance young in the front left corner of the end zone with 2:10 to play in the half.
After Benson's second touchdown, Benike missed a 32-yard field goal wide right with 1:16 to go in the third quarter that would have cut the deficit to 14-13.
"Overall, I am very proud of the effort that this football team has put forward," McCarney said. "It's been a hard couple of weeks as we have had to play two top-10 teams on the road. Winning road games is a very difficult thing to do. It's been a long two weeks and we are looking forward to going home."
Iowa State fell to 0-4 all time against Texas, including 0-3 in Big 12 play.
"We were getting beat in almost every area after the first half, so we were in trouble - not just because we were down 10-7, but because we were behind in so many areas," Brown said. "I'm very proud of our guys for coming out of their funk in the second quarter and ending the game with 33 minutes of possession time."