2015 Pac-12 Conference Leaders Opponent Penalties - Games in August/September Only through 01/11/2016
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona | 4 | 34 | 350 | 8.5 | 87.5 |
| 2 | California | 4 | 35 | 343 | 8.8 | 85.8 |
| 3 | Washington State | 3 | 24 | 218 | 8.0 | 72.7 |
| 4 | Arizona State | 4 | 26 | 231 | 6.5 | 57.8 |
| 5 | Stanford | 4 | 21 | 228 | 5.3 | 57.0 |
| 6 | Oregon State | 4 | 23 | 225 | 5.8 | 56.3 |
| 7 | Utah | 4 | 23 | 221 | 5.8 | 55.3 |
| 8 | Colorado | 4 | 25 | 210 | 6.3 | 52.5 |
| 9 | Washington | 4 | 26 | 206 | 6.5 | 51.5 |
| 10 | UCLA | 4 | 25 | 205 | 6.3 | 51.3 |
| 11 | USC | 4 | 17 | 176 | 4.3 | 44.0 |
| 12 | Oregon | 4 | 23 | 170 | 5.8 | 42.5 |