30th All-Japan Open Championship in Kyokushin (IKO), 1998
Winners
- Hajime Kazumi — Japan
- Yoshihiro Tamura — Japan
- Hitoshi Kiyama — Japan
- Ryuta Noji — Japan
- Masayoshi Takaku — Japan
- Naoki Ichimura — Japan
- Atsushi Kadoi — Japan
- Yasuhiko Kimura — Japan
30th All-Japan Open Championship in Kyokushin (IKO), 1998
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