IKO - International Karate Organization - 32nd All Japan Weight Category Karate Tournament (2015)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Yuki Shimizu | Japan |
| 2 | Kumite Lightweight | Takaichi Onuma | Japan |
| 3 | Kumite Lightweight | Yuki Yoza | Japan |
| 4 | Kumite Lightweight | Kaito Ueda | Japan |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Yuta Sawamura | Japan |
| 2 | Kumite Middleweight | Yukou Harada | Japan |
| 3 | Kumite Middleweight | Kashin Osawa | Japan |
| 4 | Kumite Middleweight | Takehiro Kaga | Japan |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Masanaga Nakamura | Japan |
| 2 | Kumite Heavyweight | Takuya Takeoka | Japan |
| 3 | Kumite Heavyweight | Yota Higuchi | Japan |
| 4 | Kumite Heavyweight | Genki Nakazawa | Japan |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Steven Cujic | Australia |
| 2 | Kumite Super Heavyweight | Satoru Araki | Japan |
| 3 | Kumite Super Heavyweight | Kenta Nanbara | Japan |
| 4 | Kumite Super Heavyweight | Ryoma Yamakawaura | Japan |