Week 9
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. Penn State (8 - 1) Schedule: 4.315 (10) | 7.36 7.36  1 | |||
| 2. Iowa (9 - 0) Schedule: 5.244 (2) | 7.14 7.14  1 | |||
| 3. Ohio State (7 - 2) Schedule: 4.478 (7) | 6.688 6.688  | |||
| 4. Wisconsin (6 - 2) Schedule: 5.119 (4) | 5.902 5.902  1 | |||
| 5. Michigan St (4 - 5) Schedule: 5.007 (6) | 5.391 5.391  1 | |||
| 6. Minnesota (5 - 4) Schedule: 5.494 (1) | 5.111 5.111  1 | |||
| 7. Michigan (5 - 4) Schedule: 4.436 (8) | 4.771 4.771  1 | |||
| 8. Purdue (3 - 6) Schedule: 5.232 (3) | 4.643 4.643  | |||
| 9. Indiana (4 - 5) Schedule: 4.337 (9) | 3.873 3.873  | |||
| 10. Northwestern (5 - 4) Schedule: 3.783 (11) | 3.821 3.821  | |||
| 11. Illinois (2 - 6) Schedule: 5.048 (5) | 3.811 3.811  |