<Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2009) (Learn how and when to remove this template message) </Td> </Tr> <P> Ten - pin bowling is a sport in which a player (called a "bowler") rolls a bowling ball down a wood - structure or synthetic (polyurethane) lane and towards ten pins positioned at the end of the lane . The objective is to score the highest pinfall by knocking down as many pins as possible . Three finger holes are drilled into a traditional bowling ball, and weights vary considerably to make the sport playable for all ages . Generally, the heavier the ball, the more pins that will topple on two equivalent shots . The pins are arranged in a triangular position by an automated machine . While professional ten - pin bowling tournaments are held in numerous countries, the sport is commonly played as a hobby by millions of people around the world . </P> <P> In Canada, the United States, United Kingdom, Ireland and Australia, the game is commonly referred to as just "Bowling". In New England, "bowling" is usually referred to as "ten - pin bowling" or "big - ball bowling", because of the smaller diameter, lighter weight ball used in the Worcester, Massachusetts - conceived sport of candlepin bowling from 1880, and the similarly "small - ball" sport of duckpin bowling (conceived in 1895), popular in the Northeast United States, as well as Canada's own sport of five - pin bowling, all three of which use smaller diameter, lighter weight bowling balls when compared to tenpin bowling, without the necessity for finger holes in them . </P> <P> The 41.5 - inch - wide (105 cm), 60 - foot - long (18 m) lane is bordered along its length by semicylindrical channels called "gutters", which are designed to collect errant balls . The overall width of the lane including the channels is 60 ⁄ inches (153 cm). The narrow lane prevents bowling a straight line at the angle required to consistently carry (knock down) all ten pins for a strike . Most skillful bowlers will roll a side spinning (hook shape reaction) ball to overcome this . A foul line is marked at the seam of the start of the lane and end of the approach . If any part of a bowler's body touches the line itself or beyond (anywhere on the actual lane surface or any adjoining areas including walls and other lanes) after the ball is delivered, the bowl is a foul and any pins knocked over by that delivery are scored as zero (0). The bowler is allowed one shot at a new rack of ten pins if s / he fouled on the first roll of a frame, and if all ten pins are knocked down on this shot, it is scored as a spare . Behind the foul line is an "approach" approximately 15 feet (5 m) long used to gain speed and leverage on the ball before delivering it . 60 feet (18 m) from the foul line, where the lane terminates, it is joined to a roughly 36 - inch (91 cm) deep by 41.5 - inch (105 cm) wide surface of durable and impact - resistant material called the "pin deck", upon which each rack of pins is set . </P>

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