After the first three editions, which took place in various nations and were not scheduled regularly, the Union Mondiale de Billard decided to keep the championships situated in Viersen, Germany and to organize these championships annually.
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After placing 2nd to Belgium's Raymond Ceulemans three times (1970, 1972 and 1973) in the UMB World Three-cushion Championship, Kobayashi turned things around and defeated Ceulemans for the world title in 1974.