IKO - International Karate Organization - 5th World Open Kyokushin Karate Tournament (1991)
Open Kumite
| Rang | Catégorie | Champion | Pays |
| 1 | Open Kumite | Kenji Midori | Japan |
| 2 | Open Kumite | Akira Masuda | Japan |
| 3 | Open Kumite | Hiroki Kurosawa | Japan |
| 4 | Open Kumite | Jean Riviere | Canada |
| 5 | Open Kumite | Kenji Yamaki | Japan |
| 6 | Open Kumite | Yutaka Ishi | Japan |
| 7 | Open Kumite | Yasuhiro Shichinohe | Japan |
| 8 | Open Kumite | Johnny Kleyn | Netherlands |