2018 Pac-12 Conference Leaders Opponent Penalties - Games vs. FBS Teams With Non-Winning Record Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona | 4 | 40 | 374 | 10.0 | 93.5 |
| 2 | Colorado | 6 | 56 | 511 | 9.3 | 85.2 |
| 3 | Washington State | 6 | 52 | 460 | 8.7 | 76.7 |
| 4 | California | 6 | 44 | 378 | 7.3 | 63.0 |
| 5 | UCLA | 3 | 21 | 187 | 7.0 | 62.3 |
| 6 | Oregon | 5 | 34 | 272 | 6.8 | 54.4 |
| 7 | Oregon State | 3 | 20 | 177 | 6.7 | 59.0 |
| 8 | Arizona State | 6 | 37 | 332 | 6.2 | 55.3 |
| 9 | Stanford | 4 | 22 | 171 | 5.5 | 42.8 |
| 10 | USC | 5 | 26 | 239 | 5.2 | 47.8 |
| 11 | Utah | 4 | 16 | 154 | 4.0 | 38.5 |
| 12 | Washington | 3 | 11 | 118 | 3.7 | 39.3 |