Rank in Judo - Wikipedia
Practitioners of Judo (柔道家, Jūdōka) are ranked according to their skill and knowledge, and, for later dan grades, their contribution to the art. Their rank is indicated by the colour of belt that they wear. There are two broad categories of rank: those who have attained a level of competency at which they are considered worthy of a black belt (黒帯, kuro obi) and who hold dan (段 ...
DA: 30 PA: 38 MOZ Rank: 50