Rank in Judo a red-white paneled belt, and judokas who have attained the 9th Dan may wear a solid red belt. In some countries a red belt is used between the white and yellow belts to signify full membership of the judo club or the countries judo association. More commonly the red belt is, however, reserved only for 9th and 10th Dan practitioners. In some countries junior practitioners have an extra system in place to show the progress in between two kyū grades. The sub rank is symbolized by a small piece of fabric on the end of the belt. The colour of
Judo and Dong-Sik Yoon. Kano Jigoro's Kodokan judo is the most popular and well-known style of judo, but is not the only one. The terms judo and jujutsu were quite interchangeable in the early years, so some of these forms of judo are still known as jujutsu or jiu-jitsu either for that reason, or simply to differentiate them from mainstream judo. From Kano's original style of judo, several related forms have evolved—some now widely considered to be distinct arts: Kano's vision for judo was one of a martial way that could be practiced realistically. Randori (free practice) was a central part