IKO - International Karate Organization - 34th All Japan Weight Category Karate Tournament (2017)
Kumite -70 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -70 kg | Kazutaka Watari | Japan |
| 2 | Kumite -70 kg | Bay Noah | Japan |
| 3 | Kumite -70 kg | Aleksandr Aristov | Russia |
| 4 | Kumite -70 kg | Kento Kobayashi | Japan |
Kumite -80 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -80 kg | Takuya Takeoka | Japan |
| 2 | Kumite -80 kg | Chiharu Higuchi | Japan |
| 3 | Kumite -80 kg | Takuya Yagihashi | Japan |
| 4 | Kumite -80 kg | Tokhirzhon Tillaev | Russia |
Kumite -90 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite -90 kg | Chihiro Nakajima | Japan |
| 2 | Kumite -90 kg | Yutaro Ishitsuka | Japan |
| 3 | Kumite -90 kg | Kyohei Ajima | Japan |
| 4 | Kumite -90 kg | Koinosuke Ishizaki | Japan |
Kumite +90 kg
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite +90 kg | Goderdzi Kapanadze | Russia |
| 2 | Kumite +90 kg | Aleksandr Eremenko | Russia |
| 3 | Kumite +90 kg | Seiya Tanigawa | Japan |
| 4 | Kumite +90 kg | Kanta Tokuda | Japan |