2018 Big 12 Conference Leaders Passes Defended - Games in December/January Only through 01/07/2019
| Name | Team | Yr | Pos | G | Int. | Passes Broken Up | Passes Defended | Passes Defended/G | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Niko Small | TCU | SR | S | 1 | 1 | 2 | 3 | 3.00 |
| 1 | Julius Lewis | TCU | JR | CB | 1 | 1 | 2 | 3 | 3.00 |
| 1 | Tre Norwood | Oklahoma | SO | CB | 2 | 1 | 1 | 2 | 1.00 |
| 1 | Jawuan Johnson | TCU | SR | LB | 1 | 1 | 0 | 1 | 1.00 |
| 1 | Jeff Gladney | TCU | JR | CB | 1 | 1 | 0 | 1 | 1.00 |
| 1 | Vernon Scott | TCU | JR | S | 1 | 1 | 0 | 1 | 1.00 |
| 1 | Derrek Pitts Jr. | WVU | SO | CB | 1 | 1 | 0 | 1 | 1.00 |
| 1 | Kenny Robinson Jr. | WVU | SO | S | 1 | 1 | 0 | 1 | 1.00 |
| 1 | Brian Peavy | Iowa State | SR | DB | 2 | 1 | 0 | 1 | 0.50 |
| 1 | P.J. Locke III | Texas | SR | DB | 2 | 1 | 0 | 1 | 0.50 |