IKO - International Karate Organization - 3rd World Weight Category Championship (2005)
Kumite Lightweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Lightweight | Lucian Gogonel | Romania |
| 2 | Kumite Lightweight | Yuzo Suzuki | Japan |
| 3 | Kumite Lightweight | Osamu Shiojima | Japan |
| 4 | Kumite Lightweight | Felipe Kuwahara | Brazil |
| 5 | Kumite Lightweight | Yuki Fukui | Japan |
| 6 | Kumite Lightweight | Marcel Murakaev | Russia |
| 7 | Kumite Lightweight | Mmangilso Mthembu | South Africa |
| 8 | Kumite Lightweight | Riyuji Isobe | Brazil |
Kumite Middleweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Middleweight | Andrews Nakahara | Brazil |
| 2 | Kumite Middleweight | Takamitsu Sakurai | Japan |
| 3 | Kumite Middleweight | Hiroyuki Kidachi | Japan |
| 4 | Kumite Middleweight | Emil Kostov | Bulgaria |
| 5 | Kumite Middleweight | Sylwester Sypien | Poland |
| 6 | Kumite Middleweight | Nicolae Stoian | Romania |
| 7 | Kumite Middleweight | Mikhail Tretyakov | Russia |
| 8 | Kumite Middleweight | Khosro Yaghoubi | Iran |
Kumite Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Heavyweight | Kentaro Tanaka | Japan |
| 2 | Kumite Heavyweight | Maxim Dedik | Russia |
| 3 | Kumite Heavyweight | Fabiano Da Silva | Brazil |
| 4 | Kumite Heavyweight | Kenshin Morimura | Japan |
| 5 | Kumite Heavyweight | Eduardo Tanaka | Brazil |
| 6 | Kumite Heavyweight | Igor Titkov | Russia |
| 7 | Kumite Heavyweight | Darmen Sadvokasov | Russia |
| 8 | Kumite Heavyweight | Magomed Mitsaev | Russia |
Kumite Super Heavyweight
| Rang | Catégorie | Champion | Pays |
| 1 | Kumite Super Heavyweight | Ewerton Teixeira | Brazil |
| 2 | Kumite Super Heavyweight | Lechi Kurbanov | Russia |
| 3 | Kumite Super Heavyweight | Alexander Pichkunov | Russia |
| 4 | Kumite Super Heavyweight | Andrey Stepin | Russia |
| 5 | Kumite Super Heavyweight | Mikhail Kozlov | Russia |
| 6 | Kumite Super Heavyweight | Artur Hovhannisian | Armenia |
| 7 | Kumite Super Heavyweight | Zalim Temrokov | Russia |
| 8 | Kumite Super Heavyweight | Tadakuni Tokuda | Japan |