2011 Pac-12 Conference Leaders Opponent Penalties - Games in October Only through 01/09/2012
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Oregon | 4 | 35 | 336 | 8.8 | 84.0 |
| 2 | Colorado | 5 | 36 | 411 | 7.2 | 82.2 |
| 3 | Arizona State | 4 | 33 | 320 | 8.3 | 80.0 |
| 4 | Washington State | 5 | 43 | 349 | 8.6 | 69.8 |
| 4 | Arizona | 4 | 28 | 279 | 7.0 | 69.8 |
| 6 | USC | 4 | 32 | 275 | 8.0 | 68.8 |
| 7 | Utah | 5 | 38 | 336 | 7.6 | 67.2 |
| 8 | Oregon State | 5 | 30 | 293 | 6.0 | 58.6 |
| 9 | UCLA | 4 | 23 | 228 | 5.8 | 57.0 |
| 10 | Stanford | 5 | 23 | 233 | 4.6 | 46.6 |
| 11 | Washington | 4 | 22 | 185 | 5.5 | 46.3 |
| 12 | California | 4 | 23 | 177 | 5.8 | 44.3 |