The Nittany Lions fell four places to No. 7 in the Top 25 after losing for the first time this season. The 24-23 loss at Iowa on a field goal in the final seconds all but eliminated coach Joe Paterno's team from the national title race and left only Alabama and Texas Tech as unbeaten teams from the six BCS conferences.
The Crimson Tide (10-0) needed overtime to stay perfect, beating LSU 27-21 in Nick Saban's return to Baton Rouge, La., as Alabama coach. The Red Raiders (10-0) followed up their big win over Texas last week with a resounding 56-20 victory over Oklahoma State.
Alabama will play Mississippi State at home Saturday. Texas Tech has a week off before playing at Oklahoma on Nov. 22, the Red Raiders' fourth consecutive game against a ranked opponent.
No. 3 Florida, No. 4 Texas, No. 5 Oklahoma and No. 6 Southern Cal, all with one-loss but still with national title hopes, all moved up one spot and are ahead of Penn State.
No. 8 Utah (10-0) moved up two spots, jumping over Boise State (9-0) which stayed at No. 9. The Utes and Broncos are both trying to break into the BCS from conferences without an automatic bid to the big-money games.
Ohio State moved up two spots and completes the first 10.
Oklahoma State fell three spots to No. 11 and is followed by Big 12 rival Missouri.
No. 13 Georgia is one spot ahead of the other unbeaten team, Ball State (9-0) from the Mid-American Conference.
Cincinnati is ranked for the first time this season at No. 22 after beating West Virginia 26-23 in overtime.
No. 24 South Carolina and No. 25 Tulsa both moved back into the rankings.
California, Georgia Tech and Maryland dropped out after losses.