IKO - International Karate Organization - 1st World Open Kyokushin Karate Tournament (1975)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Katsuaki Sato | Japan |
| 2 | Open Kumite | Hatsuo Royama | Japan |
| 3 | Open Kumite | Joko Ninomiya | Japan |
| 4 | Open Kumite | Daigo Oishi | Japan |
| 5 | Open Kumite | Toshikazu Sato | Japan |
| 6 | Open Kumite | Takashi Azuma | Japan |
| 7 | Open Kumite | Charles W. Martin | USA |
| 8 | Open Kumite | Frank Clark | USA |