2011 Pac-12 Conference Leaders Opponent Penalties - Games in August/September Only through 01/09/2012
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | California | 4 | 36 | 332 | 9.0 | 83.0 |
| 2 | Arizona State | 4 | 32 | 269 | 8.0 | 67.3 |
| 3 | Washington State | 3 | 24 | 190 | 8.0 | 63.3 |
| 4 | Colorado | 4 | 26 | 240 | 6.5 | 60.0 |
| 5 | Utah | 3 | 19 | 169 | 6.3 | 56.3 |
| 6 | Arizona | 4 | 28 | 224 | 7.0 | 56.0 |
| 7 | Oregon | 4 | 25 | 217 | 6.3 | 54.3 |
| 8 | Washington | 4 | 26 | 209 | 6.5 | 52.3 |
| 9 | USC | 4 | 27 | 200 | 6.8 | 50.0 |
| 10 | UCLA | 4 | 21 | 187 | 5.3 | 46.8 |
| 11 | Stanford | 3 | 14 | 133 | 4.7 | 44.3 |
| 12 | Oregon State | 3 | 14 | 115 | 4.7 | 38.3 |