IKO - International Karate Organization - 25th All Japan Weight Category Karate Tournament (2008)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Roman Semchenko | Russia |
| 2 | Kumite Lightweight | Nikolai Krush | Russia |
| 3 | Kumite Lightweight | Yuta Mita | Japan |
| 4 | Kumite Lightweight | Yuta Sawamura | Japan |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Yuzo Suzuki | Japan |
| 2 | Kumite Middleweight | Tomohiko Matsuoka | Japan |
| 3 | Kumite Middleweight | Takaichi Onuma | Japan |
| 4 | Kumite Middleweight | Yuki Fukui | Japan |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Yoshitatsu Beppu | Japan |
| 2 | Kumite Heavyweight | Nurmamed Mamedov | Russia |
| 3 | Kumite Heavyweight | Yoshikazu Muraoka | Japan |
| 4 | Kumite Heavyweight | Naohiko Kurata | Japan |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Makoto Akaishi | Japan |
| 2 | Kumite Super Heavyweight | Zahari Damyanov | Bulgaria |
| 3 | Kumite Super Heavyweight | Kentaro Aso | Japan |
| 4 | Kumite Super Heavyweight | Norio Matsumura | Japan |