2018 Pac-12 Conference Leaders Opponent Penalties - Games vs. FBS non-Power 5 Conference Teams Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Stanford | 2 | 17 | 192 | 8.5 | 96.0 |
| 2 | Washington State | 2 | 22 | 165 | 11.0 | 82.5 |
| 3 | Arizona | 2 | 17 | 150 | 8.5 | 75.0 |
| 4 | California | 1 | 7 | 65 | 7.0 | 65.0 |
| 5 | Oregon State | 1 | 5 | 60 | 5.0 | 60.0 |
| 6 | Washington | 1 | 8 | 50 | 8.0 | 50.0 |
| 7 | UCLA | 2 | 15 | 98 | 7.5 | 49.0 |
| 8 | Arizona State | 3 | 17 | 134 | 5.7 | 44.7 |
| 9 | Oregon | 2 | 8 | 75 | 4.0 | 37.5 |
| 10 | USC | 2 | 7 | 73 | 3.5 | 36.5 |
| 11 | Colorado | 1 | 5 | 35 | 5.0 | 35.0 |
| 12 | Utah | 2 | 7 | 65 | 3.5 | 32.5 |