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