Week 5
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. Purdue (4 - 0) Schedule: 4.994 (8) | 8.294 8.294  2 | |||
| 2. Minnesota (5 - 0) Schedule: 5.166 (6) | 8.113 8.113  1 | |||
| 3. Ohio State (3 - 1) Schedule: 6.002 (2) | 7.417 7.417  1 | |||
| 4. Michigan (4 - 1) Schedule: 5.189 (5) | 6.991 6.991  1 | |||
| 5. Wisconsin (5 - 0) Schedule: 4.094 (11) | 6.905 6.905  1 | |||
| 6. Northwestern (2 - 3) Schedule: 7.247 (1) | 6.255 6.255  | |||
| 7. Iowa (3 - 2) Schedule: 5.67 (3) | 6.169 6.169  | |||
| 8. Penn State (2 - 3) Schedule: 5.21 (4) | 5.168 5.168  | |||
| 9. Michigan St (2 - 3) Schedule: 4.389 (9) | 4.334 4.334  | |||
| 10. Illinois (2 - 3) Schedule: 5.066 (7) | 4.264 4.264  1 | |||
| 11. Indiana (2 - 3) Schedule: 4.336 (10) | 3.668 3.668  1 |