2021 Pac-12 Conference Leaders Opponent Penalties - Games vs. Conference Teams Only through 01/10/2022
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona | 9 | 67 | 723 | 7.4 | 80.3 |
| 1 | Oregon | 10 | 74 | 568 | 7.4 | 56.8 |
| 3 | USC | 9 | 66 | 656 | 7.3 | 72.9 |
| 3 | Colorado | 9 | 66 | 628 | 7.3 | 69.8 |
| 5 | Utah | 10 | 72 | 627 | 7.2 | 62.7 |
| 6 | Washington | 9 | 63 | 545 | 7.0 | 60.6 |
| 7 | Stanford | 9 | 58 | 595 | 6.4 | 66.1 |
| 7 | Oregon State | 9 | 58 | 456 | 6.4 | 50.7 |
| 9 | UCLA | 9 | 57 | 438 | 6.3 | 48.7 |
| 10 | California | 9 | 52 | 437 | 5.8 | 48.6 |
| 11 | Arizona State | 9 | 50 | 490 | 5.6 | 54.4 |
| 12 | Washington State | 9 | 49 | 361 | 5.4 | 40.1 |