2025 Big Ten Conference Leaders Opponent Penalties - Games Lost Only through 11/20/2025
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Oregon | 1 | 8 | 45 | 8.0 | 45.0 |
| 2 | USC | 2 | 13 | 138 | 6.5 | 69.0 |
| 3 | Illinois | 3 | 17 | 158 | 5.7 | 52.7 |
| 4 | Michigan State | 7 | 38 | 305 | 5.4 | 43.6 |
| 5 | Maryland | 6 | 32 | 263 | 5.3 | 43.8 |
| 6 | Nebraska | 3 | 15 | 118 | 5.0 | 39.3 |
| 7 | Minnesota | 4 | 19 | 164 | 4.8 | 41.0 |
| 8 | Purdue | 9 | 40 | 395 | 4.4 | 43.9 |
| 8 | UCLA | 7 | 31 | 284 | 4.4 | 40.6 |
| 10 | Washington | 3 | 13 | 120 | 4.3 | 40.0 |
| 10 | Iowa | 4 | 17 | 159 | 4.3 | 39.8 |
| 12 | Wisconsin | 7 | 29 | 242 | 4.1 | 34.6 |
| 13 | Rutgers | 5 | 20 | 218 | 4.0 | 43.6 |
| 13 | Michigan | 2 | 8 | 79 | 4.0 | 39.5 |
| 15 | Penn State | 6 | 21 | 150 | 3.5 | 25.0 |
| 16 | Northwestern | 5 | 17 | 148 | 3.4 | 29.6 |