| Nationality | Name | Wins | Losses |
|---|---|---|---|
| Nationality | Name | Wins | Losses |
| Japanese | Shuji Kawarada | 14 | 7 |
| German | Enriko Kehl | 51 | 17 |
| French | Freddy Kemayo | 71 | 28 |
| Dutch Moroccan | Mohammed Khamal | 48 | 10 |
| Batu Khasikov | |||
| Russian | Sergei Kharitonov | 7 | 4 |
| Moroccan Dutch | Tarik Khbabez | 48 | 10 |
| Thai | Jomhod Kiatadisak | 276 | 24 |
| Thai | Petpanomrung Kiatmuu9 | 169 | 39 |
| Thai | Rungnarai Kiatmuu9 | 118 | 33 |
| Superlek Kiatmuu9 | 132 | 29 | |
| Japanese | Yasuhiro Kido | 55 | 25 |
| Brazilian | Minoru Kimura | 37 | 10 |
| Japanese (South Korean descent) | Taiei Kin | 24 | 7 |
| Georgian | Davit Kiria | 39 | 20 |
| Japanese | Satoshi Kobayashi | ||
| Japanese | Kaisei Kondo | 8 | 4 |
| Japanese | Takayuki Kohiruimaki | 40 | 20 |
| Japanese | Koji | 31 | 17 |
| Japanese | Koki | 12 | 8 |