2017 Pac-12 Conference Leaders Opponent Penalties - Games in August/September Only through 01/08/2018
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona State | 5 | 46 | 398 | 9.2 | 79.6 |
| 2 | California | 5 | 44 | 376 | 8.8 | 75.2 |
| 3 | UCLA | 5 | 42 | 367 | 8.4 | 73.4 |
| 4 | Stanford | 5 | 37 | 352 | 7.4 | 70.4 |
| 5 | USC | 5 | 35 | 245 | 7.0 | 49.0 |
| 6 | Arizona | 4 | 32 | 306 | 8.0 | 76.5 |
| 7 | Colorado | 5 | 31 | 301 | 6.2 | 60.2 |
| 7 | Washington State | 5 | 31 | 270 | 6.2 | 54.0 |
| 9 | Oregon State | 5 | 29 | 236 | 5.8 | 47.2 |
| 10 | Washington | 5 | 25 | 235 | 5.0 | 47.0 |
| 11 | Oregon | 5 | 24 | 241 | 4.8 | 48.2 |
| 12 | Utah | 4 | 19 | 198 | 4.8 | 49.5 |