Combattants Japon
| 51 |  | Joji Goto | 3-1-0 REC | #1015 |  |
| 52 |  | Juntarou Ushiku | 0-1-0 REC | #7205 | |
| 53 |  | Junya Hibino | 0-1-0 REC | #7013 | |
| 54 |  | Juri Ohara | #7480 | | |
| 55 |  | Jutaro Nakao | 1-1-0 UFC | #4700 | |
| 56 |  | Kai Asakura | 0-2-0 UFC | #682 | |
| 57 |  | Kai Yoshida | 0-1-0 REC | #4818 | |
| 58 |  | Kaito Oda | #7750 | | |
| 59 |  | Kana Watanabe | 3-4-0 REC | #2437 | |
| 60 |  | Kanako Murata | 1-2-0 UFC | #4112 | |
| 61 |  | Kanna Asakura | 0-1-0 REC | #6574 | |
| 62 |  | Katsuhisa Fujii | 1-1-0 UFC | #5286 | |
| 63 |  | Katsunori Kikuno | 2-3-0 UFC | #3263 | |
| 64 |  | Katsuyoshi Sasaki | 0-1-0 REC | #6920 | |
| 65 |  | Kazuhiro Nakamura | 0-2-0 UFC | #4732 | |
| 66 |  | Kazuki Aimoto | #7643 | | |
| 67 |  | Kazuki Tokudome | 1-3-0 UFC | #3827 | |
| 68 |  | Kazuma Maruyama | 0-1-0 REC | #6634 | |
| 69 |  | Kazumasa Majima | 2-1-0 REC | #443 | |
| 70 |  | Kazuo Takahashi | 1-0-0 UFC | #5108 | |
| 71 |  | Kazushi Sakuraba | 1-0-0, 1NC UFC | #3709 | |
| 72 |  | Keigo Kunihara | 0-1-0 UFC | #6926 | |
| 73 |  | Keiichiro Nakamura | 3-0-0 REC | #797 | |
| 74 |  | Keiichiro Yamamiya | 0-1-0 UFC | #6918 | |
| 75 |  | Keisuke Sasu | 1-3-0 REC | #3429 | |