Bowler (ten-pin) competitions. Professional bowlers in the USA are members of the Professional Bowlers Association (PBA). Bowler (ten-pin) A bowler is someone participating in the sport of bowling, either as an amateur or professional. In American ten-pin bowling, a bowler is most commonly a member of a team of three to six people. Most bowling leagues limit the number of team members to five, with alternates available as needed. Scoring a "Kegler" is 12 consecutive strikes in one game of bowling by one individual bowler, otherwise noted as a perfect game with a score of 300 (100% strikes). There are a number
Bowling ball lighter, and without holes, so that they may be held in the palm of the bowler's hand. Most bowling alleys provide balls for patrons to use within the establishment, often referred to as "house balls." Key properties of ten-pin bowling balls include surface friction, porosity, and mass distribution, which affect the motion of the ball as it rolls. These properties are varied to control how much a ball will slide through the oily surface of a typical bowling lane, and how easily a ball will change direction when the roll is combined with rotational motion. Friction and porosity are variables