2018 Pac-12 Conference Leaders Penalties - Games in August/September Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Oregon | 5 | 25 | 253 | 5.0 | 50.6 |
| 2 | Oregon State | 5 | 27 | 279 | 5.4 | 55.8 |
| 3 | Washington | 5 | 28 | 245 | 5.6 | 49.0 |
| 4 | Arizona State | 5 | 30 | 251 | 6.0 | 50.2 |
| 5 | Utah | 4 | 25 | 211 | 6.3 | 52.8 |
| 6 | Stanford | 5 | 32 | 207 | 6.4 | 41.4 |
| 7 | Colorado | 4 | 26 | 210 | 6.5 | 52.5 |
| 8 | California | 4 | 29 | 241 | 7.3 | 60.3 |
| 9 | Arizona | 5 | 37 | 344 | 7.4 | 68.8 |
| 10 | UCLA | 4 | 31 | 266 | 7.8 | 66.5 |
| 11 | Washington State | 5 | 45 | 437 | 9.0 | 87.4 |
| 12 | USC | 5 | 46 | 426 | 9.2 | 85.2 |