2018 Pac-12 Conference Leaders Passing Defense - Games vs. Ranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Washington State | 1 | 15 | 12 | 80.0 | 229 | 15.3 | 1 | 1 | 216.91 | 15.0 | 229.0 |
| 2 | California | 2 | 76 | 47 | 61.8 | 496 | 6.5 | 2 | 3 | 117.46 | 38.0 | 248.0 |
| 3 | Arizona State | 2 | 52 | 30 | 57.7 | 378 | 7.3 | 3 | 3 | 126.25 | 26.0 | 189.0 |
| 3 | Washington | 2 | 72 | 51 | 70.8 | 403 | 5.6 | 3 | 2 | 126.03 | 36.0 | 201.5 |
| 3 | Colorado | 2 | 86 | 52 | 60.5 | 496 | 5.8 | 3 | 1 | 118.09 | 43.0 | 248.0 |
| 6 | UCLA | 4 | 120 | 73 | 60.8 | 951 | 7.9 | 5 | 2 | 137.82 | 30.0 | 237.8 |
| 6 | Oregon | 2 | 76 | 54 | 71.1 | 566 | 7.4 | 5 | 3 | 147.42 | 38.0 | 283.0 |
| 8 | Utah | 4 | 143 | 87 | 60.8 | 1028 | 7.2 | 6 | 4 | 129.49 | 35.8 | 257.0 |
| 9 | USC | 3 | 125 | 75 | 60.0 | 930 | 7.4 | 7 | 1 | 139.38 | 41.7 | 310.0 |
| 9 | Arizona | 1 | 56 | 44 | 78.6 | 482 | 8.6 | 7 | 0 | 192.12 | 56.0 | 482.0 |
| 11 | Stanford | 3 | 110 | 80 | 72.7 | 910 | 8.3 | 8 | 0 | 166.22 | 36.7 | 303.3 |
| 12 | Oregon State | 3 | 99 | 73 | 73.7 | 1004 | 10.1 | 13 | 1 | 200.23 | 33.0 | 334.7 |