1987 年 19 巻 3 号 p. 54-58
The system of Dan-i (rank) in Judo originated from a suggestion of Jigoro Kano, the founder of Judo, in August,16th year of the Meiji era (1883) and Dan-Kya (rank and Class) regulation were codified in July,12th year of the Taisho era (1923). They have been revised many times up to the present.
This paper aims to make clear how Dan-i system has come to be acknowledged and put into practice in foreign countries, and also to find a clue to settling its problems. From this viewpoint, I made a comparative study of Japanese Dan-Kyu regulation with those established by Confederacaõ Brasileira de Judo (CBJ).
“Dan-i” in Judo originally represents the degree achived by trainees in point of their proficiency as well as bodily and mental strength. No wonder, CBJ regulations were made according to this purport. I think it is very useful to make Judo a popular and life long sport that Kyr' in particular was regulated in more detail. It can be said, however, this tends to cause serious trouble even the practitioners who have not had much experience in Judo contests can sometimes obtain Dan-i easily.
We can not deny that there are various problems with Dan-i system. “How can practitioners skill be estimated properly?” The more international Judo has become, the more complicated the problems concerning Dan-i system have become. These are urgent matters that call for our careful consideration.