Bowling form Bowling form In the sport of ten-pin bowling, there are many different ways in which to deliver (known as a "throw" or "roll") the bowling ball in order to advance it toward the pins in an accurate and powerful manner. Generally, there are three basic forms of 10-pin bowling. The most basic form is known as stroking, which is the most classic form. The most powerful form is known as cranking, which imparts great leverage and maximum rotation on the ball, but sacrifices accuracy. In between the two is the domain of the tweener, who has characteristics of both, but
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