Rank in Judo are ranked in ascending numerical order. The ninth ("kudan") and tenth degree black belt ("jūdan") and, theoretically, those higher, have no formal requirements. Only 15 individuals have been promoted to the rank of Kōdōkan 10th dan. On January 6, 2006, three individuals were promoted to this rank simultaneously: Daigo Toshirō, Ichirō Abe, and Ōsawa Yoshimi. This is the most ever at the same time, and the first in 22 years. No one has ever been promoted to a rank higher than 10th "dan", but in theory the Judo rank system is not limited to 10 degrees of black belt. The
Judo in the United Kingdom with Tani as its chief instructor. There are currently two state-wide Judo associations in the United Kingdom: the British Judo Association and the British Judo Council. The British Judo Association is the United Kingdom's official governing body for Judo and was established in 1948 under the chairmanship of Trevor Leggett. British citizens have won eighteen Olympic medals in Judo since it was added to the Summer games in 1964. Neil Adams is the United Kingdom's most successful judoka, winning silver in the -71 kg category in 1980, and in the -78 kg category in 1984. Two members of the United