The International Judo Federation (IJF) was founded in July 1951. The IJF was originally composed of judo federations from Europe plus Argentina. Countries from four continents were affiliated over the next ten years. Today the IJF has 200 National Federations on all continents. There are over 40 million people around the globe who practice judo, according to the IJF. Since 2009, IJF has organized yearly World Championships and the World Judo Tour consisting of five Grand Prix, four Grand Slams, a master tournament and a Continental open tournament.

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