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 interest of the game itself and like the US equivalent it ensures the integrity and protection of the future of the sport, providing programs and services and enhancing the bowling experience, including a coaching education and qualification system. The NAYBC (National Association of Youth Bowling Clubs) is responsible to the BTBA for organizing ten-pin bowling for the under-18-year-olds. There is also the Tenpin Bowling Proprietors Association (TBPA), the trade association for ten-pin bowling of Britain. For BTBA qualified Instructors and Coaches, the British Tenpin Bowling Coaching Association has been set up to help with the exchange of information and ideas