2017 Pac-12 Conference Leaders Opponent Penalties - Games in October Only through 01/08/2018
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona | 4 | 33 | 298 | 8.3 | 74.5 |
| 2 | USC | 4 | 30 | 259 | 7.5 | 64.8 |
| 3 | Stanford | 3 | 22 | 210 | 7.3 | 70.0 |
| 4 | California | 4 | 26 | 236 | 6.5 | 59.0 |
| 5 | Washington State | 4 | 25 | 235 | 6.3 | 58.8 |
| 6 | UCLA | 3 | 18 | 175 | 6.0 | 58.3 |
| 7 | Arizona State | 3 | 17 | 125 | 5.7 | 41.7 |
| 8 | Utah | 4 | 22 | 204 | 5.5 | 51.0 |
| 9 | Colorado | 4 | 21 | 194 | 5.3 | 48.5 |
| 10 | Oregon | 4 | 20 | 205 | 5.0 | 51.3 |
| 10 | Oregon State | 3 | 15 | 141 | 5.0 | 47.0 |
| 12 | Washington | 3 | 11 | 95 | 3.7 | 31.7 |