Combattants Japon
| 51 |  | Jin Tanaka | #2244 |  | |
| 52 |  | Jin Wakita | #6261 | | |
| 53 |  | Jinnosuke Kashimura | 12-6-0 MMA | #1730 | |
| 54 |  | Jo Arai | #4926 | | |
| 55 |  | Joe Hiramoto | #697 | | |
| 56 |  | Joji Goto | 20-9-0 MMA | #712 | |
| 57 |  | Juntarou Ushiku | #7739 | | |
| 58 |  | Junya Hibino | #7866 | | |
| 59 |  | Juri Ohara | #8045 | | |
| 60 |  | Jutaro Nakao | 1-1-0 UFC | #5183 | |
| 61 |  | Kai Asakura | 2-2-0 UFC | #337 | |
| 62 |  | Kai Yoshida | #5701 | | |
| 63 |  | Kaisei Kuroi | #6962 | | |
| 64 |  | Kaito Oda | 8-4-0 MMA | #4262 | |
| 65 |  | Kana Watanabe | #2771 | | |
| 66 |  | Kanako Murata | 1-2-0 UFC | #4424 | |
| 67 |  | Kanna Asakura | #6649 | | |
| 68 |  | Katsuhisa Fujii | 1-1-0 UFC | #5739 | |
| 69 |  | Katsunori Kikuno | 2-3-0 UFC | #3616 | |
| 70 |  | Katsuyoshi Sasaki | #7556 | | |
| 71 |  | Kazuhiro Nakamura | 0-2-0 UFC | #5192 | |
| 72 |  | Kazuki Aimoto | #7954 | | |
| 73 |  | Kazuki Tokudome | 1-3-0 UFC | #4274 | |
| 74 |  | Kazuma Maruyama | #6684 | | |
| 75 |  | Kazumasa Majima | #1495 | |