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The USBC and World Bowling promulgate bowling ball specifications. USBC specifications include physical requirements for weight (≤16 pounds (7.3 kg)), diameter (8.500 inches (21.59 cm)—8.595 inches (21.83 cm)), surface hardness, surface roughness, hole drilling limitations (example: a single balance hole including the thumb hole for "two-handed" bowlers [3]), balance, plug limitations, and ...
See Bowling ball#Layout and grip and Bowling ball#Effect of coverstock, core and layout on ball motion. Layout is also a term referring to the oil pattern used on a lane surface. League: An organized group of bowling teams that compete against each other according to rules and a schedule. Leagues may be certified by a national governing body.
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Bowling is a target sport and recreational activity in which a player rolls a ball toward pins (in pin bowling) or another target (in target bowling). Most references to bowling are to pin bowling, specifically tenpin bowling , played in the United Kingdom and Commonwealth countries.
The ball used in candlepins has a maximum weight of 2 lb 7 oz (1.1 kg), and has a diameter of 4.5 in (11 cm), [1] making it the smallest bowling ball of any North American bowling sport. The nearly identical weight of the ball, when compared to that of just one candlepin 2 lb 8 oz (1.1 kg), [ 1 ] causes balls to deflect when impacting either ...
A ten-pin bowling score sheet showing how a strike is scored The number of sanctioned perfect (300) games per league bowler has increased substantially since the 1990s. . Freeman and Hatfield posit that the increase in perfect games is due to factors such as the introduction of reactive resin coverstocks, asymmetric ball cores, synthetic lane surfaces, and precision lane oiling mach
Tenpin bowling is a type of bowling in which a bowler rolls a bowling ball down a wood or synthetic lane toward ten pins positioned evenly in four rows in an equilateral triangle. The goal is to knock down all ten pins on the first roll of the ball (a strike), or failing that, on the second roll (a spare). While most people approach modern ...