Ten-pin bowling Bowling Championships. Ten-pin bowling has an international ranking system, as with many professional individual sports. This ten-pin equivalent is known as the World Ranking Masters and is made of three vast tours: the European, Americas and Asian bowling tours. Other minor tournaments, although major in their respective countries, include Britain's prestigious BTBA Nationals (BTBA National Championships), the Brunswick Ballmaster Open, Brunswick Euro Challenge in Greece, ETBF European Youth Championships, the European Gold Cup and the Mediterranean Challenge Cup. The world's premier amateur event is the WB/WTBA World Championships (World Bowling) which has been running since 1954 and is now held
Bowling pin bowling pins due to their similar shape. The two differ greatly in construction and weight. Bowling pin Bowling pins are the target of the bowling ball in various bowling games including tenpins, five-pins, duckpins, and candlepins. Pin specifications are set by the United States Bowling Congress (USBC). World Bowling, formerly World Tenpin Bowling Association, has adopted the USBC specifications. Pins are wide at their widest point and tall. They weigh , pins weighing up to are approved. The weight of the pin was originally based on the idea that a single pin should be around 24 percent the weight of