2019 Pac-12 Conference Leaders Passing Defense - Games in August/September Only through 01/13/2020
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Oregon State | 4 | 113 | 73 | 64.6 | 989 | 8.8 | 12 | 2 | 169.62 | 28.3 | 247.3 |
| 2 | Washington State | 5 | 150 | 96 | 64.0 | 1329 | 8.9 | 8 | 3 | 152.02 | 30.0 | 265.8 |
| 3 | Stanford | 5 | 153 | 108 | 70.6 | 1437 | 9.4 | 11 | 2 | 170.60 | 30.6 | 287.4 |
| 4 | Colorado | 4 | 124 | 78 | 62.9 | 1164 | 9.4 | 9 | 5 | 157.64 | 31.0 | 291.0 |
| 5 | USC | 5 | 165 | 100 | 60.6 | 1182 | 7.2 | 5 | 2 | 128.37 | 33.0 | 236.4 |
| 6 | Oregon | 4 | 133 | 69 | 51.9 | 640 | 4.8 | 2 | 6 | 88.24 | 33.3 | 160.0 |
| 7 | Utah | 5 | 168 | 105 | 62.5 | 1143 | 6.8 | 5 | 7 | 121.14 | 33.6 | 228.6 |
| 8 | Arizona State | 5 | 169 | 105 | 62.1 | 1111 | 6.6 | 6 | 2 | 126.70 | 33.8 | 222.2 |
| 9 | Washington | 5 | 174 | 103 | 59.2 | 1016 | 5.8 | 4 | 7 | 107.79 | 34.8 | 203.2 |
| 10 | California | 5 | 180 | 102 | 56.7 | 1073 | 6.0 | 2 | 2 | 108.19 | 36.0 | 214.6 |
| 11 | UCLA | 5 | 185 | 127 | 68.6 | 1759 | 9.5 | 16 | 3 | 173.82 | 37.0 | 351.8 |
| 12 | Arizona | 4 | 193 | 114 | 59.1 | 1344 | 7.0 | 9 | 9 | 123.63 | 48.3 | 336.0 |