2018 Big 12 Conference Leaders Passing Defense - Games in December/January Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | TCU | 1 | 33 | 17 | 51.5 | 164 | 5.0 | 0 | 5 | 62.97 | 33.0 | 164.0 |
| 2 | Baylor | 1 | 38 | 18 | 47.4 | 286 | 7.5 | 1 | 0 | 119.28 | 38.0 | 286.0 |
| 3 | West Virginia | 1 | 30 | 21 | 70.0 | 303 | 10.1 | 1 | 2 | 152.51 | 30.0 | 303.0 |
| 4 | Oklahoma State | 1 | 38 | 23 | 60.5 | 373 | 9.8 | 3 | 0 | 169.03 | 38.0 | 373.0 |
| 5 | Texas | 2 | 68 | 45 | 66.2 | 591 | 8.7 | 6 | 1 | 165.36 | 34.0 | 295.5 |
| 6 | Oklahoma | 2 | 65 | 48 | 73.8 | 677 | 10.4 | 6 | 1 | 188.72 | 32.5 | 338.5 |
| 7 | Iowa State | 2 | 78 | 55 | 70.5 | 520 | 6.7 | 5 | 1 | 145.10 | 39.0 | 260.0 |