IKO - International Karate Organization - 2nd World Weight Category Championship (2001)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Masafumi Tagahara | Japan |
| 2 | Kumite Lightweight | Yuuki Fukuii | Japan |
| 3 | Kumite Lightweight | Shiro Yaginuma | Japan |
| 4 | Kumite Lightweight | Riyuji Isobe | Brazil |
| 5 | Kumite Lightweight | Piotr Sawicki | Poland |
| 6 | Kumite Lightweight | Koji Yasuda | Japan |
| 7 | Kumite Lightweight | Dmitriy Kudryavstev | Russia |
| 8 | Kumite Lightweight | Abdullah Al-Barrwan | Kuwait |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Emil Kostov | Bulgaria |
| 2 | Kumite Middleweight | Hiroyuki Kidachi | Japan |
| 3 | Kumite Middleweight | Khosro Yaghoubi | Iran |
| 4 | Kumite Middleweight | Yuji Shin | Japan |
| 5 | Kumite Middleweight | Garry O’Neill | Australia |
| 6 | Kumite Middleweight | Shin Ito | Japan |
| 7 | Kumite Middleweight | Alexander Karpachev | Russia |
| 8 | Kumite Middleweight | Nicolae Stoian | Romania |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Hitoshi Kiyama | Japan |
| 2 | Kumite Heavyweight | Sergey Osipov | Russia |
| 3 | Kumite Heavyweight | Naoki Ichimura | Japan |
| 4 | Kumite Heavyweight | Kentaro Tanaka | Japan |
| 5 | Kumite Heavyweight | Juhan Herbst | South Africa |
| 6 | Kumite Heavyweight | Diego Da Silva | Brazil |
| 7 | Kumite Heavyweight | Masato Ikeda | Japan |
| 8 | Kumite Heavyweight | Vsevolod Mokhrihev | Russia |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Hajime Kazumi | Japan |
| 2 | Kumite Super Heavyweight | Atsushi Kadoi | Japan |
| 3 | Kumite Super Heavyweight | Sergey Plekhanov | Russia |
| 4 | Kumite Super Heavyweight | Alexander Pichkunov | Russia |
| 5 | Kumite Super Heavyweight | Shinji Adachi | Japan |
| 6 | Kumite Super Heavyweight | Yasuhiko Kimura | Japan |
| 7 | Kumite Super Heavyweight | Sergio Da Costa | Brazil |
| 8 | Kumite Super Heavyweight | Ewerton Teixeira | Brazil |