Combattants Japon
| 51 |  | Juri Ohara | #7246 |  | |
| 52 |  | Jutaro Nakao | 1-1-0 UFC | #4552 | |
| 53 |  | Kai Asakura | 0-2-0 UFC | #727 | |
| 54 |  | Kai Yoshida | 0-1-0 REC | #4539 | |
| 55 |  | Kana Watanabe | 3-3-0 REC | #2613 | |
| 56 |  | Kanako Murata | 1-2-0 UFC | #3971 | |
| 57 |  | Kanna Asakura | 0-1-0 REC | #6446 | |
| 58 |  | Katsuhisa Fujii | 1-1-0 UFC | #5189 | |
| 59 |  | Katsunori Kikuno | 2-3-0 UFC | #3098 | |
| 60 |  | Katsuyoshi Sasaki | 0-1-0 REC | #6631 | |
| 61 |  | Kazuhiro Nakamura | 0-2-0 UFC | #4608 | |
| 62 |  | Kazuki Aimoto | #7393 | | |
| 63 |  | Kazuki Tokudome | 1-3-0 UFC | #3687 | |
| 64 |  | Kazuma Maruyama | 0-1-0 REC | #6461 | |
| 65 |  | Kazumasa Majima | 1-1-0 REC | #1260 | |
| 66 |  | Kazuo Takahashi | 1-0-0 UFC | #5016 | |
| 67 |  | Kazushi Sakuraba | 1-0-0, 1NC UFC | #3589 | |
| 68 |  | Keigo Kunihara | 0-1-0 UFC | #6692 | |
| 69 |  | Keiichiro Nakamura | 3-0-0 REC | #387 | |
| 70 |  | Keiichiro Yamamiya | 0-1-0 UFC | #6646 | |
| 71 |  | Keisuke Sasu | 1-3-0 REC | #3333 | |
| 72 |  | Keita Nakamura | 4-7-0 UFC | #2139 | |
| 73 |  | Keito Oyama | 2-1-0 REC | #1297 | |
| 74 |  | Kenichi Yamamoto | 2-1-0 UFC | #3177 | |
| 75 |  | Kenshin Saito | 0-1-0 REC | #3839 | |