2018 Conference USA Leaders Passing Defense - Games in August/September Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | UAB | 4 | 86 | 36 | 41.9 | 564 | 6.6 | 4 | 4 | 103.00 | 21.5 | 141.0 |
| 2 | Southern Mississippi | 4 | 124 | 66 | 53.2 | 663 | 5.3 | 7 | 5 | 108.71 | 31.0 | 165.8 |
| 3 | UTEP | 5 | 112 | 68 | 60.7 | 840 | 7.5 | 9 | 1 | 148.44 | 22.4 | 168.0 |
| 4 | Louisiana Tech | 4 | 111 | 67 | 60.4 | 794 | 7.2 | 5 | 2 | 131.72 | 27.8 | 198.5 |
| 5 | North Texas | 5 | 178 | 84 | 47.2 | 1066 | 6.0 | 5 | 10 | 95.53 | 35.6 | 213.2 |
| 6 | Western Kentucky | 5 | 165 | 84 | 50.9 | 1100 | 6.7 | 8 | 5 | 116.85 | 33.0 | 220.0 |
| 7 | Florida International | 5 | 156 | 96 | 61.5 | 1129 | 7.2 | 10 | 5 | 137.07 | 31.2 | 225.8 |
| 8 | Middle Tennessee | 4 | 121 | 79 | 65.3 | 905 | 7.5 | 10 | 3 | 150.42 | 30.3 | 226.3 |
| 9 | Charlotte | 5 | 127 | 79 | 62.2 | 1209 | 9.5 | 8 | 3 | 158.25 | 25.4 | 241.8 |
| 10 | Florida Atlantic | 5 | 141 | 95 | 67.4 | 1276 | 9.0 | 11 | 3 | 164.88 | 28.2 | 255.2 |
| 11 | UTSA | 5 | 131 | 85 | 64.9 | 1290 | 9.8 | 13 | 3 | 175.77 | 26.2 | 258.0 |
| 12 | Marshall | 4 | 144 | 79 | 54.9 | 1045 | 7.3 | 5 | 4 | 121.72 | 36.0 | 261.3 |
| 13 | Old Dominion | 5 | 181 | 110 | 60.8 | 1450 | 8.0 | 15 | 4 | 150.99 | 36.2 | 290.0 |
| 14 | Rice | 5 | 141 | 98 | 69.5 | 1554 | 11.0 | 18 | 2 | 201.37 | 28.2 | 310.8 |