2025 Big Ten Conference Leaders Opponent Penalties - Games in October Only through 12/06/2025
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Northwestern | 4 | 23 | 275 | 5.8 | 68.8 |
| 2 | Illinois | 3 | 23 | 209 | 7.7 | 69.7 |
| 3 | Minnesota | 4 | 22 | 206 | 5.5 | 51.5 |
| 4 | Maryland | 3 | 23 | 198 | 7.7 | 66.0 |
| 5 | Michigan | 4 | 24 | 194 | 6.0 | 48.5 |
| 6 | Indiana | 3 | 21 | 192 | 7.0 | 64.0 |
| 7 | Nebraska | 4 | 19 | 190 | 4.8 | 47.5 |
| 8 | Washington | 4 | 22 | 187 | 5.5 | 46.8 |
| 9 | Michigan State | 4 | 21 | 170 | 5.3 | 42.5 |
| 10 | UCLA | 4 | 17 | 162 | 4.3 | 40.5 |
| 11 | Oregon | 3 | 20 | 137 | 6.7 | 45.7 |
| 12 | USC | 2 | 12 | 133 | 6.0 | 66.5 |
| 12 | Rutgers | 3 | 13 | 133 | 4.3 | 44.3 |
| 14 | Wisconsin | 4 | 17 | 125 | 4.3 | 31.3 |
| 15 | Purdue | 4 | 14 | 117 | 3.5 | 29.3 |
| 16 | Penn State | 3 | 10 | 65 | 3.3 | 21.7 |
| 16 | Iowa | 3 | 7 | 65 | 2.3 | 21.7 |
| 18 | Ohio State | 3 | 8 | 44 | 2.7 | 14.7 |