Tennessee is No. 1 in the Top 25 for the first time in six seasons while Iowa State reached its highest ranking since the 1950s after a tumultuous week in the AP poll.Kansas, which had been No. 1 since the preseason poll, dropped nine spots to No. 10 after suffering consecutive losses to Creighton and Missouri.The Volunteers (8-0) earned 58 first-place votes and leapfrogged Auburn (8-1) to the top spot. Tennessee is off to its best start since the 2000-01 season and hit No. 1 for the first time since the 2018-19 campaign.The Tigers earned three first-place votes after losing to Duke last week. Iowa State (7-1) received the other first-place vote on its way to No. 3, its highest ranking since 1956-57.Duke (7-2) jumped five spots to No. 4 and Kentucky (8-1) rounds out the top 5.Florida (9-0) jumped four spots to No. 9, giving the SEC five teams in the top 10. Alabama (7-2) jumped three spots to No. 7. In all, nine SEC teams are in the Top 25.Five teams entered the poll this week: Michigan, Michigan State, Clemson, UCLA and Mississippi State.Baylor, Memphis, Pittsburgh, Illinois and North Carolina all dropped out.The rest of the Top 25:11. Purdue (8-2)12. Oregon (9-1)13. Oklahoma (9-0)14. Michigan (8-1)15. Houston (5-3)16. Clemson (9-1)