Poids Légers Hommes
 | Johnny Case | 4-2-0 UFC | #2371 |  |
 | Jordan Rinaldi | 2-3-0 UFC | #3707 | |
 | Jordan Vucenic | 0-2-0 UFC | #175 |  |
 | Jorge de Oliveira | 0-2-0 UFC | #4918 |  |
 | Jorge Gurgel | 3-4-0 UFC | #3108 | |
 | Jorge Patino | 0-1-0 UFC | #4374 | |
 | Josh Shockley | 0-2-0 UFC | #5357 | |
 | Josh Thomson | 3-4-0 UFC | #2483 | |
 | Justin Buchholz | 1-4-0 UFC | #3925 | |
 | Justin Gaethje | 11-5-0 UFC | #2 | |
 | Justin James | 0-1-0 UFC | #7020 | |
 | Justin Jaynes | 1-4-0 UFC | #2968 | |
 | Justin Salas | 3-4-0 UFC | #3073 | |
 | Kajan Johnson | 4-3-0 UFC | #2016 |  |
 | Kamal Shalorus | 0-3-0 UFC | #2675 |  |
 | Kamuela Kirk | 1-2-0 UFC | #3912 | |
 | Katsunori Kikuno | 2-3-0 UFC | #3410 |  |
 | Kaue Fernandes | 3-1-0 UFC | #1086 | |
 | Kaynan Kruschewsky | 0-2-0 UFC | #3947 | |
 | Kazuki Tokudome | 1-3-0 UFC | #3955 | |