2018 Big Ten Conference Leaders Opponent Penalties - Games in August/September Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Penn State | 5 | 51 | 490 | 10.2 | 98.0 |
| 2 | Northwestern | 4 | 39 | 377 | 9.8 | 94.3 |
| 3 | Rutgers | 5 | 41 | 391 | 8.2 | 78.2 |
| 4 | Nebraska | 4 | 36 | 293 | 9.0 | 73.3 |
| 5 | Illinois | 4 | 33 | 290 | 8.3 | 72.5 |
| 6 | Purdue | 5 | 38 | 350 | 7.6 | 70.0 |
| 7 | Indiana | 5 | 34 | 336 | 6.8 | 67.2 |
| 8 | Minnesota | 4 | 25 | 263 | 6.3 | 65.8 |
| 9 | Michigan State | 4 | 24 | 238 | 6.0 | 59.5 |
| 10 | Iowa | 4 | 25 | 233 | 6.3 | 58.3 |
| 10 | Maryland | 4 | 25 | 233 | 6.3 | 58.3 |
| 12 | Ohio State | 5 | 30 | 280 | 6.0 | 56.0 |
| 13 | Michigan | 5 | 26 | 234 | 5.2 | 46.8 |
| 14 | Wisconsin | 4 | 12 | 116 | 3.0 | 29.0 |