Despite having the week off, Ohio State moved up two spots in the BCS rankings, to No. 9 from No. 11.
The Buckeyes benefited from losses by Utah, Alabama and Oklahoma.
Oregon maintained its No. 1 ranking, while Auburn stayed at No. 2. TCU, which beat Utah 47-7, held onto its spot at No. 3, and Boise State stayed at No. 4.
With its 24-21 win over defending BCS Champion Alabama, LSU moved up to No. 5.
Stanford made perhaps the most significant leap, rising seven spots to No. 6. The Cardinal beat Arizona 42-17 on Saturday.
Wisconsin, the highest-ranked Big Ten team, moved up to No. 7.
Nebraska edged Iowa State 31-30 after the Cyclones failed to convert what would have been a game-winning two-point conversion. The Cornhuskers slipped one spot to No. 8.
OSU hosts Penn State at 3:30 p.m. Saturday. The ESPN College GameDay crew will broadcast its show live from Columbus on Saturday morning.