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. Michigan (8 - 4) Schedule: 6.546 (3) | 7.84 7.84  | |||
| 2. Illinois (10 - 2) Schedule: 6.244 (6) | 7.787 7.787  | |||
| 3. Iowa (7 - 5) Schedule: 6.166 (8) | 7.218 7.218  | |||
| 4. Ohio State (7 - 5) Schedule: 6.225 (7) | 7.011 7.011  | |||
| 5. Michigan St (7 - 5) Schedule: 6.072 (10) | 6.602 6.602  | |||
| 6. Wisconsin (5 - 7) Schedule: 6.616 (2) | 6.336 6.336  | |||
| 7. Indiana (5 - 6) Schedule: 6.508 (4) | 6.277 6.277  | |||
| 8. Penn State (5 - 6) Schedule: 6.867 (1) | 6.274 6.274  | |||
| 9. Purdue (6 - 6) Schedule: 6.412 (5) | 6.03 6.03  | |||
| 10. Northwestern (4 - 7) Schedule: 6.138 (9) | 5.482 5.482  | |||
| 11. Minnesota (4 - 7) Schedule: 5.862 (11) | 5.396 5.396  |