8th World Open Championship in Kyokushin karate (SHIN (WKO)). Tokyo, Japan, 4–5 October 2003.
Winners
- Kunihiro Suzuki — Japan
- Yuichiro Osaka — Japan
- Takayuki Tsukakoshi — Japan
- Valeri Dimitrov — Bulgaria
- Francisco Jose Carpena — Spain
- Muzaffer Bacak — Germany
- Norichika Tsukamoto — Japan
- Daniel Torok — Hungary
Awards
- Fighting spirit: Kenji Maekawa — Japan
- Best technique: Brian Jakobsen — Denmark
- Tameshiwari: Olexey Kasatonov — Ukraine
- Tameshiwari: Donatas Imbras — Lithuania
- Tameshiwari: Maxim Shevchenko — Russia