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 | American Athletic Conference | Big 10 | Big 12 | Conference USA | Division I-A Independents | Mid-American Conference | MWC | Pac-12 | SEC | Sun Belt Conference
| Place | Team | Rating | Strength of Schedule | +/- | 
|---|---|---|---|---|
| 1. Michigan (3 - 1) Schedule: 6.756 (1) | 9.274 9.274  | |||
| 2. Ohio State (4 - 0) Schedule: 5.155 (4) | 8.123 8.123  | |||
| 3. Wisconsin (3 - 1) Schedule: 5.478 (3) | 7.542 7.542  | |||
| 4. Iowa (4 - 0) Schedule: 4.857 (11) | 7.382 7.382  | |||
| 5. Northwestern (4 - 0) Schedule: 5.054 (7) | 7.333 7.333  | |||
| 6. Michigan St (4 - 0) Schedule: 5.089 (6) | 7.261 7.261  | |||
| 7. Indiana (4 - 0) Schedule: 5.128 (5) | 6.409 6.409  | |||
| 8. Nebraska (2 - 2) Schedule: 5.533 (2) | 6.25 6.25  | |||
| 9. Illinois (3 - 1) Schedule: 4.939 (9) | 6.072 6.072  | |||
| 10. Penn State (3 - 1) Schedule: 4.717 (13) | 6.066 6.066  | |||
| 11. Minnesota (3 - 1) Schedule: 4.897 (10) | 5.217 5.217  | |||
| 12. Maryland (2 - 2) Schedule: 5.009 (8) | 4.895 4.895  | |||
| 13. Purdue (1 - 3) Schedule: 4.762 (12) | 3.988 3.988  | |||
| 14. Rutgers (2 - 2) Schedule: 3.144 (14) | 3.403 3.403  |