Ohio State, Kansas and Duke were the only teams ranked No. 1 in The Associated Press' college basketball poll this season, and they were among nine teams in the Top 25 from start to finish.
Ohio State (32-2), the overall No. 1 seed for the NCAA tournament, led the poll for the third straight week and eighth overall. The Big Ten regular-season and tournament champions received 51 first-place votes from the 65-member national media panel Monday.
Kansas (32-2) was No. 1 for one week this season. The Jayhawks, which won both Big 12 titles, drew the other 14 first-place votes and were second for the third straight week.
Kansas State dropped from 19th to 21st in the final poll after its Big 12 quarterfinal loss to Colorado.
The Big Ten and Big 12 both had six teams ranked at some point this season, while the Southeastern Conference had five and the Atlantic Coast Conference four. The Mountain West had three teams in the Top 25, the West Coast Conference, Pac-10, Conference USA and Atlantic 10 had two and the Horizon League and Western Athletic Conference one each.