Bowling ball Bowling ball A bowling ball is a piece of sporting equipment used to hit bowling pins in the sport of bowling. Balls used in ten-pin bowling are typically hard spheres with three holes drilled in them, one each for the ring and middle fingers, and one for the thumb. Regulating bodies such as the USBC maintain requirements for the properties of bowling balls, including size, hardness, and number of holes, as well as maintaining a list of bowling balls approved for competitive play. Other bowling balls, such as those used in five-pin bowling, candlepin bowling, and duckpin bowling are smaller,
Ten-pin bowling scores decline, often because they did not change their technique or bowling balls appropriately. Some argue that such high technology unfairly affects competition, making high scores too dependent on how much money one spends on equipment. The USBC, for various reasons, has struggled to regulate these changes well enough to protect the integrity of their honor score award program. The problem mostly stemmed from the feature of modern oil patterns, especially house patterns that help exhibit performance of modern bowling balls allegedly for marketing reasons. Every such pattern provides better odds to bowlers with certain line of bowling, release, ball