Sport: Gentlemanly Jujitsu

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* The ten: France, Britain, Italy, Austria, Switzerland, The Netherlands, Belgium, Luxembourg, West Germany and Denmark. Next year the U.S., Canada, Cuba, Brazil, Argentina and Australia are expected to join. Last week Japan (with more than 1,000,000 judo athletes) joined the federation and Risei Kano, son of judo's founder, became the new president. *In judo hierarchy, contestants are graded by an intricate system. Novices wear white belts. Then, through about two years' training, the novice judoka progresses through yellow, orange, green, blue and brown belts. From brown to the coveted black takes another year. There are ten grades of black belt, starting with first dan (i.e., grade). Sixth dan is the highest competitive rank. Higher dans are reserved for judo masters. No European ranks higher than fifth dan, but there are three tenth-dan men in the world, all Japanese.