Judo federations have promoted another eleven who are not recognized (at that level of rank) by the Kodokan. On July 28, 2011, the promotion board of USA Judo awarded Keiko Fukuda the rank of 10th "dan", who was the first woman to be promoted to judo's highest level, albeit not a Kodokan-recognized rank. Although "dan" ranks tend to be consistent between national organizations there is more variation in the "kyū" grades, with some countries having more "kyū" grades. Although initially "kyū" grade belt colours were uniformly white, today a variety of colours are used. The first black belts to denote a
Kosen judo ordinary contenders, a captain and a vice-captain, and five replacements in case of injuries or retirements. Every match is composed of a single, six-minute round, changed to an eight minute round when the contenders are captains or vice-captains. The league is hosted as a "kachi-nuki shiai", meaning every winner stays on the mat to face the next member of the rival team. At the end of the event, victory is given to the team with the highest numbers of matches won or with the last man on the field. Kosen judo Today, the term "kosen judo" is frequently used to