Poids Plumes Hommes
 | Khusein Askhabov | 0-1-0 UFC | #4989 |  |
 | Kim Tinghaugen | 0-1-0 REC | #6781 |  |
 | Kisa Miyake | 0-1-0 REC | #5501 |  |
 | Kleber Koike Erbst | 2-3-0 REC | #1088 |  |
 | Koji Oishi | 0-2-0 UFC | #4804 | |
 | Koji Takeda | 1-2-0 REC | #3108 | |
 | Koki Akada | 0-3-0 REC | #3210 | |
 | Konmon Deh | 0-2-0 REC | #4785 |  |
 | Konstantin Podoynitsyn | 0-1-0 REC | #5457 | |
 | Kota Miura | 0-2-0 REC | #1709 | |
 | Kouya Kanda | 1-1-0 REC | #5770 | |
 | Koyomi Matsushima | 1-1-0 REC | #5815 | |
 | Kron Gracie | 1-3-0 UFC | #2190 | |
 | Krzysztof Geburek | 0-1-0 REC | #5149 |  |
 | Kurban Taygibov | 2-1-0 REC | #406 | |
 | Kurtis Campbell | 1-0-0 REC | #1265 |  |
 | Kurtis Ellis | 1-1-0 REC | #6004 |  |
 | Kyle Bochniak | 2-5-0 UFC | #2381 | |
 | Kyle Zimick | 0-1-0 REC | #5235 | |
 | Kyohei Hagiwara | 2-2-0 REC | #1668 | |