Ten-pin bowling the body in step one; step two has the ball at the bottom of the backswing; in step three, the ball is at the top of the backswing; finally, the ball is swung forward and delivered in conjunction with the fourth and final slide-step. In a five-step approach, the bowler takes an initial timing step before pushing the ball away from the body. The regulations listed here are generally based around regulations set by the United States Bowling Congress — based on the original rules first codified by a USBC predecessor, the American Bowling Congress in 1895 — and the
Ten-pin bowling use. With the two-handed release, the dominant hand's middle and ring fingers are inserted into the ball and the non-dominant hand (left for right handers, right for left handers) is kept on top of the ball and helps to support the ball until release. Examples of success with these styles include no-thumber Eric Copping, who has bowled over one hundred perfect games and holds the Vermont state record for average in a season with 246, and two-handed PBA members Jason Belmonte, Osku Palermaa and Jesper Svensson. There is an optimal bowling ball speed at which the player maximizes the chance