2018 Pac-12 Conference Leaders Opponent First Downs - Games vs. Ranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Rush | Pass | Penalty | Total | Total/G | |
|---|---|---|---|---|---|---|---|
| 1 | Washington State | 1 | 13 | 7 | 0 | 20 | 20.0 |
| 2 | Arizona | 1 | 6 | 20 | 5 | 31 | 31.0 |
| 3 | California | 2 | 8 | 27 | 1 | 36 | 18.0 |
| 4 | Washington | 2 | 13 | 22 | 2 | 37 | 18.5 |
| 5 | Arizona State | 2 | 23 | 18 | 3 | 44 | 22.0 |
| 6 | Oregon | 2 | 12 | 32 | 3 | 47 | 23.5 |
| 7 | Colorado | 2 | 19 | 25 | 5 | 49 | 24.5 |
| 8 | USC | 3 | 20 | 46 | 6 | 72 | 24.0 |
| 8 | Stanford | 3 | 22 | 46 | 4 | 72 | 24.0 |
| 10 | Utah | 4 | 23 | 44 | 8 | 75 | 18.8 |
| 11 | Oregon State | 3 | 34 | 43 | 4 | 81 | 27.0 |
| 12 | UCLA | 4 | 41 | 44 | 10 | 95 | 23.8 |