4th World Open Championship in Kyokushin karate (Rengokai). Toyama, Japan, 20–21 January 2017.

Winners

  1. Yuya Nagata — Japan
  2. Timur Raiymbekov — Kazakhstan
  3. Yudai Ishimine — Japan
  4. Sho Shigematsu — Japan
  5. Yasumichi Kikuyama — Japan
  6. Akihito Teruya — Japan
  7. Kim Jong Kil — Japan
  8. Yuhei Ashitaka — Japan