2018 Pac-12 Conference Leaders Penalties - Games in October Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Stanford | 3 | 10 | 98 | 3.3 | 32.7 |
| 2 | Washington | 4 | 13 | 111 | 3.3 | 27.8 |
| 3 | Oregon | 3 | 19 | 167 | 6.3 | 55.7 |
| 4 | Arizona State | 3 | 17 | 169 | 5.7 | 56.3 |
| 5 | Washington State | 3 | 19 | 190 | 6.3 | 63.3 |
| 6 | Oregon State | 3 | 23 | 209 | 7.7 | 69.7 |
| 7 | USC | 3 | 22 | 216 | 7.3 | 72.0 |
| 8 | UCLA | 4 | 25 | 218 | 6.3 | 54.5 |
| 9 | California | 4 | 24 | 225 | 6.0 | 56.3 |
| 10 | Colorado | 4 | 25 | 259 | 6.3 | 64.8 |
| 11 | Utah | 4 | 28 | 273 | 7.0 | 68.3 |
| 12 | Arizona | 4 | 32 | 298 | 8.0 | 74.5 |