Highest Dan

(最高段者戦) Also know as Saikodansha, the tournament ended in 1958, after four editions. Succeeded by Nihon Kiin Daiichii tournament.

Winners

• 1st, 1951: Sakata Eio (d. Hosokawa Senjin 2-0)
• 2nd, 1952: Shimamura Toshihiro (d. Murashima Yoshinori 1-0)
• 3rd, 1955: Miyashita Shuyo (d. Shimamura Toshihiro 1-0)
• 4th, 1958: Shimamura Toshihiro (d. Maeda Nobuaki 1-0)