2018 Big 12 Conference Leaders Passing Defense - Games vs. Ranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Kansas | 3 | 101 | 65 | 64.4 | 758 | 7.5 | 8 | 6 | 141.66 | 33.7 | 252.7 |
| 2 | Oklahoma State | 4 | 176 | 109 | 61.9 | 1376 | 7.8 | 8 | 0 | 142.60 | 44.0 | 344.0 |
| 3 | Iowa State | 5 | 146 | 105 | 71.9 | 1139 | 7.8 | 8 | 1 | 154.16 | 29.2 | 227.8 |
| 4 | TCU | 4 | 136 | 91 | 66.9 | 1183 | 8.7 | 11 | 1 | 165.20 | 34.0 | 295.8 |
| 5 | Texas Tech | 3 | 110 | 69 | 62.7 | 1042 | 9.5 | 10 | 2 | 168.66 | 36.7 | 347.3 |
| 6 | Texas | 4 | 137 | 93 | 67.9 | 1247 | 9.1 | 13 | 2 | 172.73 | 34.3 | 311.8 |
| 7 | Oklahoma | 5 | 160 | 109 | 68.1 | 1580 | 9.9 | 13 | 3 | 174.14 | 32.0 | 316.0 |
| 8 | Kansas State | 3 | 103 | 77 | 74.8 | 964 | 9.4 | 9 | 3 | 176.39 | 34.3 | 321.3 |
| 9 | West Virginia | 3 | 93 | 66 | 71.0 | 1025 | 11.0 | 7 | 3 | 181.94 | 31.0 | 341.7 |
| 10 | Baylor | 3 | 93 | 62 | 66.7 | 1047 | 11.3 | 11 | 1 | 198.12 | 31.0 | 349.0 |