Wisconsin, ranked No. 6 in each human poll and No. 7 in the Bowl Championship Series standings last week, improved its share of the AP poll from .779 to .836 and improved its coaches' share from .755 to .828.
California (6-1), whose only loss came at the hands of USC, is No. 4 in the AP poll, just three points ahead of Wisconsin, and No. 6 according to the coaches. Cal's share rankings leapt from .759 to .838 in the AP and from .699 to .787 in the coaches after a convincing, 27-0 win over Arizona State.
Georgia (7-1) moved up two spots in each poll to No. 5 in the coaches and No. 8 in the AP.
Utah, which moved ahead of Wisconsin in last week's BCS rankings, remained undefeated Saturday with a 51-28 win over San Diego State. The Utes (8-0) are now No. 7 in the AP and No. 8 according to the coaches, also up two on each list.
Miami (6-1) fell to No. 11 in the AP and No. 10 in the coaches after a 31-28 loss to North Carolina. The Seminoles (6-2), meanwhile, fell to No. 13 in both rankings.
Michigan (8-1) moved up to No. 9 in the coaches poll and No. 10 in the AP after a triple-overtime win over Michigan State. Iowa, ranked 20th in each poll, joins the Wolverines and Badgers as the only Big Ten teams in the rankings.