Tous les combattants
 | Kolton Englund | 0-2-0 REC | #4279 |  |
 | Konmon Deh | 0-2-0 REC | #4991 |  |
 | Konrad Dyrschka | 3-0-0 REC | #2482 |  |
 | Konrad Rusinski | 3-3-0 REC | #817 |  |
 | Konstantin Erokhin | 0-2-0 UFC | #4978 |  |
 | Konstantin Podoynitsyn | 0-1-0 REC | #6175 | |
 | Konstantinos Ntelis | 3-1-0 REC | #1436 |  |
 | Korey Kuppe | 0-3-0 REC | #5208 | |
 | Korey Taylor | 0-1-0 REC | #5529 |  |
 | Korey Windham | 0-1-0 REC | #7285 | |
 | Kory Moegenburg | 0-2-0 REC | #5324 | |
 | Kostadin Enev | 0-1-0 REC | #7882 |  |
 | Kosuke Terashima | 0-1-0 REC | #6050 |  |
 | Kota Miura | 0-2-0 REC | #2225 | |
 | Kouki Nakagawa | 1-0-0 REC | #2212 | |
 | Kousuke Kindaichi | 0-1-0 REC | #6560 | |
 | Kousuke Sugimura | 1-0-0 REC | #3095 | |
 | Kouya Kanda | 1-1-0 REC | #6179 | |
 | Kovacs Zsombor | 0-1-0 REC | #7969 |  |
 | Koyomi Matsushima | 1-2-0 REC | #4300 | |
 | Kris McCray | 0-3-0 UFC | #4328 | |
 | Kris Moutinho | 0-4-0 UFC | #2114 | |
 | Kris Rotharmel | 0-1-0 UFC | #7474 | |
 | Krissa Timbs | #7967 | | |
 | Kristians Boguzs | 1-0-0 REC | #1885 |  |