Ten-pin bowling regulations, identification letters and numbers, and general wear from normal use. For much of the history of bowling, bowling balls were made using a three-piece construction method. Starting in the mid-1990s, however, most manufacturers switched to a two-piece method. In response to these innovative ball designs, the American Bowling Congress placed further restrictions on the technical characteristics of the ball such as the radius of gyration and hooking potential. A game of bowling consists of ten frames. In each frame, the bowler will have two chances to knock down as many pins as possible with their bowling ball. In games
Ten-pin bowling topple on two equivalent shots. The pins are arranged in a triangular position by an automated machine. While professional ten-pin bowling tournaments are held in numerous countries, the sport is commonly played as a hobby by millions of people around the world. In Canada, the United States, United Kingdom, Ireland and Australia, the game is commonly referred to as just "bowling". In New England, "bowling" is usually referred to as "ten-pin bowling" or "big-ball bowling", because of the smaller diameter, lighter weight ball used in the Worcester, Massachusetts-conceived sport of candlepin bowling from 1880, and the similarly "small-ball" sport of