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Usual rank[change | change source]
The "dying" theory[change | change source]
The "dirty belt" theory[change | change source]
This is a theory that demonstrates how a student would, as they trained, dirty their belt overtime. More of a myth than a theory, a student started with a white belt. As sweat, dirt, and other debris occupied not only the belt, but the karate gi, his/her color appeared to get darker and closer to black.