The voting coaches seem impressed with the Hoosiers (24-3), putting Indiana first on 28 ballots and second on the other three. Gonzaga (27-2) receives the other first-place mentions and moves to No. 2 this week.
Duke (24-3) and Michigan (23-4) are both up three spots this week to third and fourth, respectively, while Kansas (23-4) is No. 5 after a week at ninth.
Florida (22-4) slips two places to sixth and Miami (Fla.) (22-4) falls five spots to No. 7 after suffering its first ACC loss of the season. Miami and Duke meet Saturday in one of the highlight games of this week, along with Sunday's Michigan State-Michigan.
Georgetown (21-4) jumps from 11th to No. 8 with Louisville (22-5) in ninth and Michigan State (22-6), which was fifth a week ago, in 10th.
Arizona (23-4) takes the No. 11 position and Syracuse (22-5) drops from eighth to 12th while Kansas State (22-5) holds at 13th. New Mexico (23-4) and Ohio State (2-7) are voted 14th and 15th, respectively.
Wisconsin (19-8) comes in 16th and Memphis (24-3) is No. 17. Oklahoma State (20-6), down three places, is 18th. St. Louis (21-5), one of three new teams in the rankings this week, is No. 19 and Notre Dame (22-6) is 20th.
Butler (22-6), 10th two weeks ago, sags to 21st ahead of No. 22 Marquette (19-7). No. 23 St. Mary's (Calif.) (24-5) and 24th-ranked Akron (22-4) are also new entries. Virginia Commonwealth (22-6) is No. 25.
St. Louis, St. Mary's and Akron are making their first appearances in the Top 25 this season. Colorado State, Pittsburgh and Oregon all fall from the rankings.
In addition to the Miami-Duke and Michigan State-Michigan games: Syracuse and Marquette were scheduled to meet Monday night and Syracuse follows that with a game Saturday at Louisville. Also Saturday, Marquette plays host to Notre Dame and Butler is at Virginia Commonwealth.