IKO - International Karate Organization - 27th All Japan Weight Category Karate Tournament (2010)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Yuya Fujita | Japan |
| 2 | Kumite Lightweight | Yuta Sawamura | Japan |
| 3 | Kumite Lightweight | Masato Osugi | Japan |
| 4 | Kumite Lightweight | Daisuke Terashima | Japan |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Yuta Takahashi | Japan |
| 2 | Kumite Middleweight | Yuki Fukui | Japan |
| 3 | Kumite Middleweight | Tomohiko Matsuoka | Japan |
| 4 | Kumite Middleweight | Piotr Moczydlowski | Poland |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Tariel Nikoleishvili | Russia |
| 2 | Kumite Heavyweight | Zenjyuro Mori | Japan |
| 3 | Kumite Heavyweight | Yoshikazu Muraoka | Japan |
| 4 | Kumite Heavyweight | Daiki Kobayashi | Japan |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Shoki Arata | Japan |
| 2 | Kumite Super Heavyweight | Makoto Taniguchi | Japan |
| 3 | Kumite Super Heavyweight | Hideo Sawada | Japan |
| 4 | Kumite Super Heavyweight | Yoshiaki Uchida | Japan |