12th All-Japan Open Championship in Kyokushin (IKO), 1980

Winners

  1. Keiji Senpai — Japan
  2. Makoto Nakamura — Japan
  3. Takashi Yosinga — Japan
  4. Akiyoshi Matsui — Japan
  5. Shiro Yazima — Japan
  6. Michael Soderkvist — Sweden
  7. Harutomo Takeyama — Japan
  8. Masayuki Shiraishi — Japan