2015 Pac-12 Conference Leaders Opponent First Downs - Games Lost Only through 01/11/2016
| Name | G | Rush | Pass | Penalty | Total | Total/G | |
|---|---|---|---|---|---|---|---|
| 1 | Stanford | 2 | 18 | 16 | 1 | 35 | 17.5 |
| 2 | Washington State | 4 | 44 | 35 | 2 | 81 | 20.3 |
| 3 | Utah | 3 | 22 | 34 | 7 | 63 | 21.0 |
| 4 | Colorado | 9 | 84 | 96 | 16 | 196 | 21.8 |
| 5 | Arizona State | 7 | 45 | 100 | 9 | 154 | 22.0 |
| 6 | Washington | 6 | 58 | 65 | 10 | 133 | 22.2 |
| 7 | USC | 6 | 61 | 63 | 10 | 134 | 22.3 |
| 8 | UCLA | 5 | 60 | 56 | 9 | 125 | 25.0 |
| 9 | California | 5 | 75 | 47 | 4 | 126 | 25.2 |
| 10 | Oregon | 4 | 40 | 59 | 4 | 103 | 25.8 |
| 11 | Arizona | 6 | 65 | 80 | 11 | 156 | 26.0 |
| 12 | Oregon State | 10 | 135 | 127 | 16 | 278 | 27.8 |