Ron Chenoy-USA TODAY Sports
The Oregon Ducks are one of this week's biggest losers thanks to a nine-point road loss to the unranked Colorado Buffaloes in their Pac-12 opener Thursday.
- The ninth week of the 2019-2020 basketball season has come and gone, and - as has become the norm this year - the AP Top 25 Poll has endured a shake-up this week.
- For the third week in a row, the Gonzaga Bulldogs sit atop the college basketball rankings, but two of the top five teams - the Oregon Ducks and Ohio State Buckeyes - suffered significant losses in the first week of the new decade.
- The Duke Blue Devils, Kansas Jayhawks, Baylor Bears, and Auburn Tigers round out the top five.
- The Big Ten leads all conferences with five teams in the AP Top 25 Poll, while the ACC and Big 12 follow close behind with four apiece in the rankings.
- Here are the five biggest winners and losers from Week 9 of the 2019-2020 college basketball season.
- Visit Business Insider's homepage for more stories.