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 to knock down all ten bowling pins. Optimal ball speed, which is defined as the time it takes for the ball to travel from one foot past the foul line to the head pin, is 2.3 seconds (this number can shift to 2.2 or 2.4 depending on the dryness or slickness of the lane). A ball that is rolled too fast will not give the pins enough time to “mix” with other pins, or in other words, to knock each other down in a domino effect motion. Conversely, a ball rolled too slowly will deflect too much and will not