Rank in Judo applied to juniors below the age of 15 due to safety reasons. In Israel the following belt colors exist: Brazilian belt rankings are normally white, blue, yellow, orange, green, purple, brown and black (6th, 7th, and 8th dan may wear alternating red and white panels, and 9th and 10th dan holders may wear solid red belts). Additionally, a grey belt may be given to very young judoka (under 11 or 13 years old) just before the blue. Sometimes, competitors are organized into two categories depending on grading; the first is from white to green, and the second is purple through
Judo in the United States the U.S. development of judo is Yamashita Yoshitsugu, who came to the U.S. in 1902 in order to teach judo to the Japanese community. Yoshiaki ended up teaching Senator James Wolcott Wadsworth Jr.'s wife, who happened to attend the same country club as Theodore Roosevelt. Mrs. Wadsworth told Roosevelt about judo, and he became interested in the sport. Yoshiaki was subsequently invited to Washington to give a demonstration at the White House. There was a contest with a wrestler by the name of John Graft, who was the coach at the U.S. Naval Academy and who was teaching President Roosevelt