2018 Big Ten Conference Leaders Opponent Penalties - Games vs. Unranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Purdue | 10 | 72 | 702 | 7.2 | 70.2 |
| 2 | Northwestern | 10 | 68 | 664 | 6.8 | 66.4 |
| 3 | Iowa | 11 | 67 | 641 | 6.1 | 58.3 |
| 4 | Penn State | 9 | 69 | 637 | 7.7 | 70.8 |
| 5 | Illinois | 9 | 61 | 590 | 6.8 | 65.6 |
| 6 | Ohio State | 10 | 58 | 584 | 5.8 | 58.4 |
| 7 | Minnesota | 9 | 55 | 538 | 6.1 | 59.8 |
| 8 | Nebraska | 8 | 61 | 533 | 7.6 | 66.6 |
| 9 | Rutgers | 8 | 56 | 524 | 7.0 | 65.5 |
| 10 | Indiana | 8 | 53 | 522 | 6.6 | 65.3 |
| 11 | Michigan | 8 | 49 | 438 | 6.1 | 54.8 |
| 12 | Michigan State | 8 | 39 | 380 | 4.9 | 47.5 |
| 13 | Wisconsin | 9 | 36 | 359 | 4.0 | 39.9 |
| 14 | Maryland | 7 | 28 | 251 | 4.0 | 35.9 |