2018 Pac-12 Conference Leaders Opponent First Downs - Games in August/September Only through 01/07/2019
| Name | G | Rush | Pass | Penalty | Total | Total/G | |
|---|---|---|---|---|---|---|---|
| 1 | California | 4 | 37 | 26 | 8 | 71 | 17.8 |
| 2 | Colorado | 4 | 36 | 30 | 9 | 75 | 18.8 |
| 3 | Utah | 4 | 17 | 32 | 8 | 57 | 14.3 |
| 3 | Washington State | 5 | 40 | 32 | 18 | 90 | 18.0 |
| 5 | Washington | 5 | 31 | 38 | 4 | 73 | 14.6 |
| 6 | UCLA | 4 | 39 | 45 | 11 | 95 | 23.8 |
| 7 | Oregon | 5 | 31 | 49 | 9 | 89 | 17.8 |
| 7 | Arizona | 5 | 56 | 49 | 12 | 117 | 23.4 |
| 9 | USC | 5 | 35 | 53 | 11 | 99 | 19.8 |
| 9 | Arizona State | 5 | 57 | 53 | 8 | 118 | 23.6 |
| 11 | Oregon State | 5 | 72 | 54 | 9 | 135 | 27.0 |
| 12 | Stanford | 5 | 43 | 56 | 3 | 102 | 20.4 |