AP men's college basketball Top 25 poll breakdown - ESPN

Five AP top-10 teams lost Saturday: Michigan, Houston, Iowa State, Kansas and Illinois. It was tied with Feb. 1, 2025, for the most such losses on a single day in the past four seasons.

It also meant Michigan's reign as No. 1 lasted just a week. Duke is the new No. 1 team in the Week 16 AP poll.

Arizona recovered from its losses to rise to No. 2, with Michigan, Iowa State — despite its loss to BYU — and Houston rounding out the top five.

Alabama (eight spots) and Florida (five) had the biggest jumps, while Kansas (six), Vanderbilt (six) and Saint Louis (five) had the biggest drops. Wisconsin dropped out to make way for Tennessee. Only Illinois' and Arkansas' rankings didn't change following the past week's results.

Read on for the full top 25 rankings, including what's next for each team.

All times Eastern. All stats courtesy of ESPN Research unless otherwise noted.

Previous polls: Week 1 | 2 | 3 | 4 | 5 | 6 | 7 | 9 | 10 | 11 | 12 | 13 | 14 | 15

Previous ranking: 3

2025-26 record: 25-2

Stat to know: Duke has 11 wins all time against AP No. 1 teams, third most in poll history behind North Carolina (14) and UCLA (12). The Blue Devils have 15 wins all time in AP top-three matchups, breaking a tie with North Carolina for the most in poll history. Duke has 153 wins over AP top-10 opponents all time, the second most of any program behind North Carolina (175).

What's next: Tuesday at Notre Dame, 7 p.m., ESPN

Previous ranking: 4

2025-26 record: 25-2

Stat to know: Arizona now has three wins this season against AP top-three opponents, tied for most by any team in the regular season since the poll debuted in 1949 (and the first since Kansas also had three in 2011-12).

What's next: Tuesday at Baylor, 9 p.m., ESPN2

Previous ranking: