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 (4 - 0) Schedule: 4.26 (4) | 7.978 7.978  | |||
| 2. Illinois (3 - 1) Schedule: 4.561 (1) | 6.811 6.811  | |||
| 3. Wisconsin (4 - 0) Schedule: 4.366 (2) | 6.23 6.23  | |||
| 4. Purdue (4 - 0) Schedule: 2.327 (11) | 5.676 5.676  | |||
| 5. Michigan St (4 - 0) Schedule: 3.101 (9) | 5.526 5.526  | |||
| 6. Indiana (3 - 1) Schedule: 3.667 (7) | 5.007 5.007  | |||
| 7. Iowa (2 - 2) Schedule: 3.552 (8) | 4.919 4.919  | |||
| 8. Penn State (3 - 1) Schedule: 2.397 (10) | 4.679 4.679  | |||
| 9. Michigan (2 - 2) Schedule: 4.314 (3) | 4.18 4.18  | |||
| 10. Northwestern (2 - 2) Schedule: 3.848 (6) | 3.654 3.654  | |||
| 11. Minnesota (1 - 3) Schedule: 3.942 (5) | 3.007 3.007  |