Troy Smith threw for 186 yards and four touchdowns and No. 1 Ohio State picked up its second road win over a ranked opponent by manhandling No. 13 Iowa 38-17 on Saturday.
The Buckeyes (5-0, 2-0 Big Ten) faced three ranked teams last month -- Texas, Penn State and the Hawkeyes -- and beat them all by at least 17 points. Ohio State, which extended the nation's longest current winning streak to 12 games, won't face another currently ranked team until their season finale against Michigan on Nov. 18.
Ohio State broke open a 21-10 game with long scoring drives on its first two possessions of the second half. Anthony Gonzalez, who caught two touchdown passes, had a spectacular 30-yard TD catch that put the Buckeyes ahead 28-10 early in the second half.
No. 5 Florida 28, Alabama 13
At Gainesville, Florida, Ryan Smith had two interceptions, Reggie Nelson returned another pick for a touchdown and fifth-ranked Florida beat Alabama 28-13 in US college football on Saturday to avenge last season's most embarrassing loss.
No. 3 USC 28, Washington State 22
At Pullman, Washington, Steve Smith responded to the loss of All-American Dwayne Jarrett with a career-high 11 catches for 186 yards and two second-half touchdowns and the Trojans survived a scare.
No. 6 Michigan 28, Minnesota 14
At Minneapolis, Chad Henne got the Wolverines completed three touchdown passes in the first half and Michigan hung on for the victory.
No. 7 Texas 56, Sam Houston 3
At Austin, Texas, Henry Melton ran for two touchdowns, Colt McCoy passed for two more and Texas emptied its bench and still piled up the points on Division I-AA Sam Houston State.
No. 9 LSU 48, Mississippi St. 17
At Baton Rouge, Louisiana, JaMarcus Russell threw for 330 yards and three touchdowns and matched a school record with 14 consecutive completions for LSU in a game delayed nearly an hour by a thunderstorm.
No. 10 Georgia 14, Mississippi 9
At Oxford, Mississippi, Kregg Lumpkin ran for 101 yards and Matthew Stafford directed two Georgia second-half scoring drives.
No. 12 Notre Dame 35, Purdue 21
At South Bend, Indiana, Brady Quinn threw for 316 yards and two touchdowns and Darius Walker ran for 146 yards as Notre Dame (4-1) played its best offensive game of the season.