52nd All-Japan Open Championship in Kyokushin (IKO), 2020

Winners

  1. Konstantin Kovalenko — Russia
  2. Kaito Nishimura — Japan
  3. Yuki Shimizu — Japan
  4. Koinosuke Ishizake — Japan
  5. Tatsuma Yamagawa — Japan
  6. Takehiro Kaga — Japan
  7. Yuki Okudera — Japan
  8. Kento Kobayashi — Japan