IKO - International Karate Organization - 33rd All Japan Weight Category Karate Tournament (2016)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Yuki Yoza | Japan |
| 2 | Kumite Lightweight | Yuki Fukui | Japan |
| 3 | Kumite Lightweight | Yuki Shimizu | Japan |
| 4 | Kumite Lightweight | Kento Kobayashi | Japan |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Takuma Yamada | Japan |
| 2 | Kumite Middleweight | Kashin Osawa | Japan |
| 3 | Kumite Middleweight | Chiharu Higuchi | Japan |
| 4 | Kumite Middleweight | Takehiro Kaga | Japan |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Koinosuke Ishizaki | Japan |
| 2 | Kumite Heavyweight | Takuya Takeoka | Japan |
| 3 | Kumite Heavyweight | Chihiro Nakajima | Japan |
| 4 | Kumite Heavyweight | Ilya Karpenko | Russia |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Shohei Kamada | Japan |
| 2 | Kumite Super Heavyweight | Yuta Takahashi | Japan |
| 3 | Kumite Super Heavyweight | Tatsuma Yamagawa | Japan |
| 4 | Kumite Super Heavyweight | Seiya Tanigawa | Japan |