After another weekend of college football, the top six teams hold their spots. The top five teams also remain undefeated after Week 8: Alabama, Penn State, Georgia, TCU and Wisconsin.
In the AP Poll, Michigan fell out of the top 25 rankings for the first time in two years after losing to Penn State 42-13 in the rivalry game. Also in the AP Poll, Notre Dame made the biggest rise, jumping into the top 10 with a win against USC to further complicate the playoff field. Iowa State works its way into the mix, coming in at No. 25, but it will have a tough test to keep its spot next weekend with a matchup against TCU.
In the Coaches Poll, the same 25 teams were ranked, but they have shuffled into different spots. With big losses, USC and Michigan made the biggest falls. Michigan once held the No. 7 spot, but it now comes in at No. 25 after the disappointing showing at Penn State.
BENDER: Latest College Football Playoff picture
The Big 12 represents the most teams in the Top 25 this week with five. The ACC, Big Ten, Pac-12 and SEC each have four teams in the rankings. Three teams in the rankings represent the American Conference.
Here is a look at the latest college football rankings entering Week 9 of the season.
College football rankings: Top 25 AP Poll
| Rank | Team | No. 1 votes | W-L |
| No. 1 | Alabama | 61 | 8-0 |
| No. 2 | Penn State | 0 | 7-0 |
| No. 3 | Georgia | 0 | 7-0 |
| No. 4 | TCU | 0 | 7-0 |
| No. 5 | Wisconsin | 0 | 7-0 |
| No. 6 | Ohio State | 0 | 6-1 |
| No. 7 | Clemson | 0 | 6-1 |
| No. 8 | Miami (Fla.) | 0 | 6-0 |
| No. 9 | Notre Dame | 0 | 6-1 |
| No. 10 | Oklahoma | 0 | 6-1 |
| No. 11 | Oklahoma State | 0 | 6-1 |
| No. 12 | Washington | 0 | 6-1 |
| No. 13 | Virginia Tech | 0 | 6-1 |
| No. 14 | NC State | 0 | 6-1 |
| No. 15 | Washington State | 0 | 7-1 |
| No. 16 | Michigan State | 0 | 6-1 |
| No. 17 | South Florida | 0 | 7-0 |
| No. 18 | UCF | 0 | 6-0 |
| No. 19 | Auburn | 0 | 6-2 |
| No. 20 | Stanford | 0 | 5-2 |
| No. 21 | USC | 0 | 6-2 |
| No. 22 | West Virginia | 0 | 5-2 |
| No. 23 | LSU | 0 | 6-2 |
| No. 24 | Memphis | 0 | 6-1 |
| No. 25 | Iowa State | 0 | 5-2 |
Others receiving votes: Texas A&M 74, Michigan 60, Mississippi St. 43, San Diego St. 7, Georgia Tech 5, South Carolina 2, Marshall 1, Toledo 1.
College football rankings: Coaches Poll
| Rank | Team | No. 1 votes | W-L |
| No. 1 | Alabama | 64 | 8-0 |
| No. 2 | Penn State | 0 | 7-0 |
| No. 3 | Georgia | 0 | 7-0 |
| No. 4 | TCU | 0 | 7-0 |
| No. 5 | Wisconsin | 0 | 7-0 |
| No. 6 | Ohio State | 0 | 6-1 |
| No. 7 | Clemson | 0 | 6-1 |
| No. 8 | Miami (Fla.) | 0 | 6-0 |
| No. 9 | Oklahoma | 0 | 6-1 |
| No. 10 | Notre Dame | 0 | 6-1 |
| No. 11 | Washington | 0 | 6-1 |
| No. 12 | Oklahoma State | 0 | 6-1 |
| No. 13 | Virginia Tech | 0 | 6-1 |
| No. 14 | South Florida | 0 | 7-0 |
| No. 15 | NC State | 0 | 6-1 |
| No. 16 | Washington State | 0 | 7-1 |
| No. 17 | Central Florida | 0 | 6-0 |
| No. 18 | Michigan State | 0 | 6-1 |
| No. 19 | Auburn | 0 | 6-2 |
| No. 20 | Stanford | 0 | 5-2 |
| No. 21 | USC | 0 | 6-2 |
| No. 22 | West Virginia | 0 | 5-2 |
| No. 23 | LSU | 0 | 6-2 |
| No. 24 | Texas A&M | 0 | 5-2 |
| No. 25 | Michigan | 0 | 5-2 |
Others receiving votes: Memphis 119, Iowa State 32, Mississippi State 19, South Carolina 9, Georgia Tech 8, Arizona 6, Colorado State 4, Kentucky 4, Marshall 3, Boise State 3, Navy 3, Arizona State 2, Appalachian State 1, Florida 1, Syracuse 1, Troy 1.