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Frame 1, ball 1: 7 pins Frame 1, ball 2: 3 pins (spare) Frame 2, ball 1: 4 pins Frame 2, ball 2: 2 pins The total score from these throws is: 7 + 3 + 4(bonus) + 4 + 2 = 20, while the score for Frame 1 is 14. A player who bowls a spare in the tenth (final) frame is awarded one extra ball to allow for the bonus points.
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 ...
Bowling balls vary, depending on the type of bowling. Ten-pin balls are about 8.59 inches (21.8 cm) in diameter, typically have three holes, and weigh from 6 to 16 lb (2.7 to 7.3 kg). The size and spacing of the finger holes on non-customized balls are generally smaller on lighter balls to accommodate smaller hands.
In bowling, we are trying to deliver a heavy 14 or 15 pound bowling ball over the foul line at about an average speed of 16 or 17 miles per hour, apply a rotational force to the ball in order to gain an effective hook motion, hit a one inch sighting target on the lane, and accurately impact the pocket 60 feet away while smashing down about 36 ...
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Their most notable brand name is Columbia 300, which has produced some of the most well-known balls in the sport. Beginning in 1960 in Ephrata, Washington (near the Columbia River), Columbia Industries was the first manufacturer to successfully use polyester resin ("plastic") in bowling balls. Prior to this, nearly all bowling balls were made ...