Week 4
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 (5 - 0) Schedule: 5.097 (3) | 8.116 8.116  | |||
| 2. Michigan (4 - 1) Schedule: 5.631 (1) | 7.043 7.043  | |||
| 3. Wisconsin (5 - 0) Schedule: 4.516 (7) | 6.807 6.807  | |||
| 4. Penn State (3 - 1) Schedule: 4.987 (5) | 6.607 6.607  | |||
| 5. Iowa (4 - 1) Schedule: 4.461 (9) | 6.205 6.205  | |||
| 6. Minnesota (4 - 1) Schedule: 3.362 (11) | 5.508 5.508  | |||
| 7. Purdue (3 - 2) Schedule: 4.492 (8) | 5.282 5.282  | |||
| 8. Michigan St (3 - 2) Schedule: 3.963 (10) | 4.629 4.629  | |||
| 9. Illinois (1 - 4) Schedule: 4.99 (4) | 4.286 4.286  | |||
| 10. Indiana (2 - 3) Schedule: 5.315 (2) | 4.043 4.043  | |||
| 11. Northwestern (2 - 3) Schedule: 4.589 (6) | 3.145 3.145  |