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. Iowa (10 - 2) Schedule: 6.272 (1) | 7.655 7.655  | |||
| 2. Michigan (9 - 3) Schedule: 6.088 (3) | 7.255 7.255  | |||
| 3. Ohio State (8 - 4) Schedule: 6.147 (2) | 7.225 7.225  2 | |||
| 4. Purdue (7 - 5) Schedule: 5.944 (5) | 7.179 7.179  1 | |||
| 5. Wisconsin (9 - 3) Schedule: 5.663 (7) | 6.952 6.952  1 | |||
| 6. Minnesota (7 - 5) Schedule: 5.455 (11) | 6.207 6.207  | |||
| 7. Michigan St (5 - 7) Schedule: 5.643 (8) | 5.726 5.726  | |||
| 8. Northwestern (6 - 6) Schedule: 6.07 (4) | 5.562 5.562  | |||
| 9. Penn State (4 - 7) Schedule: 5.736 (6) | 5.475 5.475  | |||
| 10. Indiana (3 - 8) Schedule: 5.545 (10) | 4.437 4.437  | |||
| 11. Illinois (3 - 8) Schedule: 5.553 (9) | 4.238 4.238  |