Week 15
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. Ohio State (12 - 1) Schedule: 5.166 (7) | 7.592 7.592  1 | |||
| 2. Michigan St (10 - 2) Schedule: 4.992 (13) | 7.469 7.469  1 | |||
| 3. Wisconsin (10 - 3) Schedule: 5.055 (9) | 6.874 6.874  | |||
| 4. Nebraska (9 - 3) Schedule: 5.028 (12) | 6.618 6.618  | |||
| 5. Minnesota (8 - 4) Schedule: 5.216 (5) | 6.102 6.102  | |||
| 6. Iowa (7 - 5) Schedule: 5.045 (11) | 5.628 5.628  | |||
| 7. Maryland (7 - 5) Schedule: 5.213 (6) | 5.342 5.342  | |||
| 8. Northwestern (5 - 7) Schedule: 5.239 (4) | 5.108 5.108  | |||
| 9. Penn State (6 - 6) Schedule: 4.896 (14) | 5.025 5.025  | |||
| 10. Michigan (5 - 7) Schedule: 5.321 (3) | 4.907 4.907  | |||
| 11. Rutgers (7 - 5) Schedule: 5.048 (10) | 4.85 4.85  | |||
| 12. Illinois (6 - 6) Schedule: 5.405 (1) | 4.561 4.561  | |||
| 13. Indiana (4 - 8) Schedule: 5.133 (8) | 4.064 4.064  | |||
| 14. Purdue (3 - 9) Schedule: 5.378 (2) | 3.87 3.87  |