LOS ANGELES: LaMichael James rushed for 239 yards and three touchdowns and Darron Thomas threw three of his four scoring passes to Jeff Maehl as No. 1 Oregon roared back from a second-half deficit to beat USC. Thomas passed for 288 yards and Maehl had eight catches for a career-high 145 yards for the high-powered Ducks, who racked up 599 total yards in yet another barn-burning offensive performance. Matt Barkley passed for 263 yards and Marc Tyler rushed for two scores for the Trojans. No. 3 Auburn 51, Mississippi 31: At Oxford, Mississippi, Cam Newton caught a touchdown pass, to go along with the two TD passes he threw, and Mike Dyer ran for 180 yards for Auburn. The Tigers are ranked atop the BCS standings for the first time. No. 4 TCU 48, UNLV 6: At Las Vegas, Andy Dalton threw for 252 yards and two touchdowns as TCU dominated defensively again to stay undefeated. TCU, which was also fourth in the BCS standings, heads into a huge conference showdown at No. 8 Utah, having allowed 16 points in the last five games. Ed Wesley ran 64 yards on 13 carries with a touchdown and Dalton finished 16 of 23 with no interceptions. No. 18 Iowa 37, No. 5 Michigan State 6: At Iowa City, Iowa, Ricky Stanzi threw three touchdown passes as Iowa handed Michigan State its first loss decisively. Adam Robinson added a pair of touchdowns for the charged-up Hawkeyes, who rolled out to a 30-0 halftime lead and dealt a crushing blow to the Spartans' national title hopes. No. 14 Nebraska 31, No. 7 Missouri 17: At Lincoln Nebraska, Roy Helu Jr. rushed for a school-record 307 yards as Nebraska knocked Missouri from the unbeatens. The Cornhuskers held off the Tigers after building a 24-0 lead and moved into a first-place tie with them in the Big 12 North. Nebraska earned the inside track to the division title by winning the head-to-head meeting. No. 10 Ohio State 52, Minnesota 10: At Minneapolis, Terrelle Pryor threw for 222 yards and two touchdowns, and Dan Herron rushed for 114 yards and another score in the first half to lead Ohio State. Pryor completed 18 of 22 passes and also rushed for 55 yards and a touchdown for the Buckeyes (8-1, 4-1 Big Ten), who are trying to ram their way back into the national championship picture. No. 8 Utah 28, Air Force 23: Air Force Academy, Colorado, Utah's defense forced five turnovers and stopped the Falcons twice on downs in the final quarter to win heading into its big game with TCU next weekend. Safety Greg Bird came up with one big hit after another and Eddie Wide scored twice as the Utes ran their record to 8-0 for the third time in the last seven years. Elsewhere it was: No. 13 Stanford 41, Washington 0; No. 15 Arizona 29, UCLA 21; No. 17 South Carolina 38, Tennessee 24; No. 19 Arkansas 49, Vanderbilt 14; No. 20 Oklahoma State 24, Kansas State 14; Virginia 24, No. 22 Miami 19; No. 23 Mississippi State 24, Kentucky 17; No. 25 Baylor 30, Texas 22.