Rank in Judo English language edition (1955) of "Illustrated Kodokan Judo", edited by the Kōdōkan, says: This statement was later clarified, however. Essentially, the dan-rank system was capped at 10 after the death of Kanō. In that respect, in the November 1963 issue of "Jūdō", the Kōdōkan's official magazine, the Kōdōkan responding to the question "Do the 11th and 12th Dan really exist?" clarifies that the hierarchy now stops at 10 and that the Kōdōkan does not envisage any nominations to these grades. There have only been fifteen 10th dan promotions awarded by the Kōdōkan in the history of Judo. Although "dan" ranks
Judo in Canada by the National Grading Board. Most of the responsibility for grading, however, is delegated to other organizations. All "kyū" grade promotions are based on examination at the student's club by the club's head instructor or grading board following the Judo Canada grading syllabus. "Shodan" (first "dan") to "hachidan" (eighth "dan") promotions are based on examination by a provincial or territorial grading board, and must be ratified by Judo Canada. "Kudan" (ninth "dan") and "judan" (tenth "dan") promotions are rare honours that are conferred directly by Judo Canada, the International Judo Federation, or the Kodokan. The time between promotions for "kyū"