IKO - International Karate Organization - 15th All Japan Open Karate Championship (1983)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Yasuto Onishi | Japan |
| 2 | Open Kumite | Kazuhiko Ogasawara | Japan |
| 3 | Open Kumite | Harutomo Takeyama | Japan |
| 4 | Open Kumite | Kazuo Miyoshi | Japan |
| 5 | Open Kumite | Akira Masuda | Japan |
| 6 | Open Kumite | Toshio Mizuguchi | Japan |
| 7 | Open Kumite | Keiji Sanpei | Japan |
| 8 | Open Kumite | Akiyoshi Matsui | Japan |