Week 9
2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2021 | 2022 | 2023 | 2024 | 2025
All | ACC | Big 10 | Big 12 | Big East | Conference USA | Division I-A Independents | Mid-American Conference | MWC | Pac-12 | SEC | Sun Belt Conference | WAC
| Place | Team | Rating | Strength of Schedule | +/- | 
|---|---|---|---|---|
| 1. Ohio State (10 - 0) Schedule: 5.349 (10) | 8.121 8.121  | |||
| 2. Iowa (9 - 1) Schedule: 5.47 (8) | 7.916 7.916  | |||
| 3. Penn State (6 - 3) Schedule: 5.833 (2) | 7.145 7.145  | |||
| 4. Michigan (7 - 2) Schedule: 5.913 (1) | 6.844 6.844  | |||
| 5. Wisconsin (6 - 4) Schedule: 5.663 (3) | 6.43 6.43  | |||
| 6. Purdue (4 - 5) Schedule: 5.566 (6) | 6.183 6.183  1 | |||
| 7. Minnesota (7 - 2) Schedule: 4.402 (11) | 6.122 6.122  1 | |||
| 8. Illinois (3 - 6) Schedule: 5.423 (9) | 4.899 4.899  | |||
| 9. Michigan St (3 - 6) Schedule: 5.636 (4) | 4.375 4.375  | |||
| 10. Indiana (3 - 6) Schedule: 5.63 (5) | 4.114 4.114  | |||
| 11. Northwestern (3 - 7) Schedule: 5.508 (7) | 3.739 3.739  |