2015 Pac-12 Conference Leaders Opponent Penalties - Games in October Only through 01/11/2016
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Colorado | 5 | 28 | 255 | 5.6 | 51.0 |
| 2 | Arizona | 5 | 30 | 244 | 6.0 | 48.8 |
| 3 | Oregon State | 4 | 27 | 241 | 6.8 | 60.3 |
| 4 | Oregon | 4 | 30 | 220 | 7.5 | 55.0 |
| 4 | Washington State | 5 | 29 | 220 | 5.8 | 44.0 |
| 6 | Washington | 4 | 27 | 219 | 6.8 | 54.8 |
| 7 | Stanford | 4 | 24 | 208 | 6.0 | 52.0 |
| 8 | Arizona State | 4 | 25 | 206 | 6.3 | 51.5 |
| 9 | California | 4 | 22 | 200 | 5.5 | 50.0 |
| 10 | UCLA | 4 | 21 | 184 | 5.3 | 46.0 |
| 11 | Utah | 4 | 20 | 178 | 5.0 | 44.5 |
| 12 | USC | 4 | 18 | 160 | 4.5 | 40.0 |