2018 Pac-12 Conference Leaders Passing Defense - Games Lost Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Washington State | 2 | 41 | 29 | 70.7 | 470 | 11.5 | 4 | 1 | 194.33 | 20.5 | 235.0 |
| 2 | California | 6 | 163 | 105 | 64.4 | 1109 | 6.8 | 5 | 6 | 124.33 | 27.2 | 184.8 |
| 3 | Washington | 4 | 129 | 86 | 66.7 | 877 | 6.8 | 6 | 0 | 139.12 | 32.3 | 219.3 |
| 4 | Arizona State | 6 | 172 | 107 | 62.2 | 1328 | 7.7 | 9 | 5 | 138.53 | 28.7 | 221.3 |
| 4 | Utah | 5 | 167 | 106 | 63.5 | 1313 | 7.9 | 9 | 5 | 141.30 | 33.4 | 262.6 |
| 4 | Stanford | 4 | 131 | 97 | 74.0 | 1109 | 8.5 | 9 | 0 | 167.83 | 32.8 | 277.3 |
| 7 | Oregon | 4 | 141 | 95 | 67.4 | 1101 | 7.8 | 10 | 3 | 152.12 | 35.3 | 275.3 |
| 8 | USC | 7 | 203 | 117 | 57.6 | 1535 | 7.6 | 12 | 2 | 138.70 | 29.0 | 219.3 |
| 9 | UCLA | 9 | 261 | 168 | 64.4 | 2199 | 8.4 | 15 | 5 | 150.28 | 29.0 | 244.3 |
| 10 | Colorado | 7 | 246 | 146 | 59.3 | 1811 | 7.4 | 18 | 5 | 141.27 | 35.1 | 258.7 |
| 11 | Arizona | 7 | 236 | 153 | 64.8 | 1979 | 8.4 | 19 | 1 | 160.99 | 33.7 | 282.7 |
| 12 | Oregon State | 10 | 282 | 180 | 63.8 | 2400 | 8.5 | 29 | 3 | 167.13 | 28.2 | 240.0 |