2015 Pac-12 Conference Leaders Opponent Penalties - Games in December/January Only through 01/11/2016
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Arizona | 1 | 8 | 109 | 8.0 | 109.0 |
| 2 | Washington State | 1 | 9 | 105 | 9.0 | 105.0 |
| 3 | Oregon | 1 | 8 | 83 | 8.0 | 83.0 |
| 4 | Stanford | 2 | 14 | 112 | 7.0 | 56.0 |
| 5 | Utah | 1 | 6 | 54 | 6.0 | 54.0 |
| 5 | Arizona State | 1 | 5 | 54 | 5.0 | 54.0 |
| 7 | USC | 2 | 12 | 94 | 6.0 | 47.0 |
| 7 | California | 1 | 4 | 47 | 4.0 | 47.0 |
| 9 | Washington | 1 | 4 | 45 | 4.0 | 45.0 |
| 10 | UCLA | 1 | 6 | 38 | 6.0 | 38.0 |