2021 Big Ten Conference Leaders Opponent Penalties - Games vs. Unranked Teams Only (AP Poll) through 01/10/2022
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Iowa | 12 | 79 | 648 | 6.6 | 54.0 |
| 2 | Michigan State | 10 | 62 | 505 | 6.2 | 50.5 |
| 3 | Northwestern | 9 | 60 | 494 | 6.7 | 54.9 |
| 4 | Illinois | 11 | 56 | 566 | 5.1 | 51.5 |
| 5 | Purdue | 9 | 55 | 490 | 6.1 | 54.4 |
| 6 | Minnesota | 11 | 53 | 521 | 4.8 | 47.4 |
| 7 | Maryland | 9 | 46 | 385 | 5.1 | 42.8 |
| 7 | Michigan | 10 | 46 | 383 | 4.6 | 38.3 |
| 9 | Indiana | 7 | 44 | 357 | 6.3 | 51.0 |
| 9 | Rutgers | 9 | 44 | 383 | 4.9 | 42.6 |
| 9 | Wisconsin | 10 | 44 | 412 | 4.4 | 41.2 |
| 12 | Ohio State | 9 | 43 | 362 | 4.8 | 40.2 |
| 13 | Penn State | 8 | 41 | 339 | 5.1 | 42.4 |
| 14 | Nebraska | 7 | 31 | 293 | 4.4 | 41.9 |