2017 Pac-12 Conference Leaders Passing Defense - Games in October Only through 01/08/2018
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | UCLA | 3 | 40 | 26 | 65.0 | 331 | 8.3 | 1 | 2 | 132.76 | 13.3 | 110.3 |
| 2 | Stanford | 3 | 75 | 38 | 50.7 | 397 | 5.3 | 1 | 5 | 86.20 | 25.0 | 132.3 |
| 3 | Arizona State | 3 | 100 | 55 | 55.0 | 560 | 5.6 | 3 | 4 | 103.94 | 33.3 | 186.7 |
| 3 | Oregon State | 3 | 94 | 55 | 58.5 | 648 | 6.9 | 7 | 2 | 136.74 | 31.3 | 216.0 |
| 5 | Washington State | 4 | 116 | 59 | 50.9 | 773 | 6.7 | 4 | 3 | 113.05 | 29.0 | 193.3 |
| 6 | USC | 4 | 110 | 60 | 54.5 | 862 | 7.8 | 5 | 3 | 129.92 | 27.5 | 215.5 |
| 7 | Washington | 3 | 100 | 64 | 64.0 | 548 | 5.5 | 2 | 0 | 116.63 | 33.3 | 182.7 |
| 8 | Utah | 4 | 116 | 69 | 59.5 | 755 | 6.5 | 5 | 1 | 126.66 | 29.0 | 188.8 |
| 9 | Colorado | 4 | 147 | 82 | 55.8 | 1029 | 7.0 | 8 | 2 | 129.82 | 36.8 | 257.3 |
| 10 | California | 4 | 132 | 90 | 68.2 | 1048 | 7.9 | 7 | 6 | 143.28 | 33.0 | 262.0 |
| 11 | Oregon | 4 | 149 | 91 | 61.1 | 1097 | 7.4 | 11 | 1 | 145.93 | 37.3 | 274.3 |
| 12 | Arizona | 4 | 199 | 126 | 63.3 | 1373 | 6.9 | 8 | 9 | 125.49 | 49.8 | 343.3 |