2018 Pac-12 Conference Leaders Opponent First Downs - Games vs. FBS Teams With Non-Winning Record Only through 01/07/2019
| Name | G | Rush | Pass | Penalty | Total | Total/G | |
|---|---|---|---|---|---|---|---|
| 1 | Utah | 4 | 19 | 30 | 11 | 60 | 15.0 |
| 2 | Washington | 3 | 22 | 32 | 1 | 55 | 18.3 |
| 3 | UCLA | 3 | 24 | 35 | 8 | 67 | 22.3 |
| 4 | Arizona | 4 | 27 | 46 | 13 | 86 | 21.5 |
| 5 | Stanford | 4 | 37 | 44 | 6 | 87 | 21.8 |
| 6 | Washington State | 6 | 38 | 51 | 13 | 102 | 17.0 |
| 7 | USC | 5 | 40 | 48 | 15 | 103 | 20.6 |
| 7 | Oregon State | 3 | 40 | 32 | 4 | 76 | 25.3 |
| 9 | Oregon | 5 | 42 | 62 | 10 | 114 | 22.8 |
| 10 | Colorado | 6 | 51 | 65 | 15 | 131 | 21.8 |
| 11 | California | 6 | 52 | 43 | 9 | 104 | 17.3 |
| 12 | Arizona State | 6 | 56 | 69 | 11 | 136 | 22.7 |