2018 Pac-12 Conference Leaders Passing Defense - Games vs. Conference Teams Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Oregon State | 9 | 250 | 161 | 64.4 | 2172 | 8.7 | 24 | 1 | 168.26 | 27.8 | 241.3 |
| 2 | California | 9 | 267 | 163 | 61.0 | 1736 | 6.5 | 10 | 10 | 120.54 | 29.7 | 192.9 |
| 3 | UCLA | 9 | 277 | 171 | 61.7 | 2260 | 8.2 | 15 | 10 | 140.92 | 30.8 | 251.1 |
| 4 | Arizona State | 9 | 273 | 173 | 63.4 | 2203 | 8.1 | 18 | 8 | 147.06 | 30.3 | 244.8 |
| 5 | Colorado | 9 | 299 | 175 | 58.5 | 2171 | 7.3 | 20 | 5 | 138.25 | 33.2 | 241.2 |
| 6 | Washington State | 9 | 280 | 177 | 63.2 | 2107 | 7.5 | 14 | 5 | 139.35 | 31.1 | 234.1 |
| 7 | Oregon | 9 | 317 | 185 | 58.4 | 2291 | 7.2 | 18 | 12 | 130.24 | 35.2 | 254.6 |
| 8 | USC | 9 | 308 | 189 | 61.4 | 1996 | 6.5 | 14 | 3 | 128.85 | 34.2 | 221.8 |
| 9 | Utah | 10 | 355 | 208 | 58.6 | 2445 | 6.9 | 14 | 12 | 122.70 | 35.5 | 244.5 |
| 10 | Washington | 10 | 330 | 209 | 63.3 | 1876 | 5.7 | 8 | 11 | 112.41 | 33.0 | 187.6 |
| 11 | Stanford | 9 | 333 | 210 | 63.1 | 2647 | 7.9 | 9 | 9 | 133.34 | 37.0 | 294.1 |
| 12 | Arizona | 9 | 328 | 217 | 66.2 | 2501 | 7.6 | 21 | 6 | 147.68 | 36.4 | 277.9 |