Week 15
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 (12 - 1) Schedule: 5.341 (4) | 8.175 8.175  | |||
| 2. Michigan (11 - 2) Schedule: 5.775 (1) | 8.041 8.041  | |||
| 3. Wisconsin (12 - 1) Schedule: 4.567 (11) | 7.146 7.146  | |||
| 4. Penn State (9 - 4) Schedule: 5.35 (3) | 6.326 6.326  | |||
| 5. Minnesota (6 - 7) Schedule: 5.53 (2) | 5.484 5.484  | |||
| 6. Iowa (6 - 7) Schedule: 5.289 (6) | 5.448 5.448  | |||
| 7. Purdue (8 - 6) Schedule: 4.775 (10) | 4.533 4.533  | |||
| 8. Michigan St (4 - 8) Schedule: 5.165 (9) | 4.455 4.455  | |||
| 9. Indiana (5 - 7) Schedule: 5.325 (5) | 4.354 4.354  | |||
| 10. Northwestern (4 - 8) Schedule: 5.198 (8) | 4.062 4.062  | |||
| 11. Illinois (2 - 10) Schedule: 5.232 (7) | 3.866 3.866  |