5th All-Japan Open Championship in Kyokushin (IKO), 1973

Winners

  1. Hatsuo Royama — Japan
  2. Teruntomo Yamazaki — Japan
  3. Tashikazu Sato — Japan
  4. Katasuki Sato — Japan
  5. Yoshimoto Togashi — Japan
  6. Tokiyosi Matsumoto — Japan
  7. Noriyasu Hamai — Japan
  8. Joko Ninomiya — Japan