A lot can happen in one week. Since our last edition of college basketball power rankings, three top-five teams lost–all to teams that were outside of last week's Top 25. Louisville's defeat vs. Texas Tech cleared the way for yet another No. 1 team, this time in the form of Ohio State. But the Buckeyes weren't the only ones to benefit.
1. Ohio State (9-0)
The Buckeyes are the latest team to assume the No. 1 spot, built on the back of a 9-0 résumé that includes wins by more than 25 points over Villanova, North Carolina and Penn State—all KenPom Top 25 teams.