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Regulation size and weight for a football is a circumference of 68–70 cm (27–28 in) and a weight of 410–450 g (14–16 oz). The ball is inflated to a pressure of 0.6–1.1 bars (8.7–16.0 psi) at sea level. [20] This is known as "Size 5". Smaller balls, Sizes 1, 3, and 4, are also produced for younger players or as training tools. [20]
The regulation size for an NFL football is specified as short circumference from 21 to 21 + 1 ⁄ 4 inches (533 to 540 mm); long circumference from 28 to 28 + 1 ⁄ 2 inches (711 to 724 mm). [ 13 ]
The first detailed sets of rules published by football clubs (rather than a school or university) were those of Sheffield F.C. (written 1858, published 1859) which codified a game played for 20 years until being discontinued in favour of the Football Association code, and those of Melbourne FC (1859) which are the origins of Australian rules ...
The football used in rugby league is known as "international size" or "size 5" and is approximately 27 cm (11 in) long and 60 cm (24 in) in circumference at its widest point. Smaller-sized balls are used for junior versions of the game, such as "Mini" and "Mod". A full size ball weighs between 383 and 440 g (13.5 and 15.5 oz).
The modern rules of association football are based on the mid-19th century efforts to standardise ... In 2008, the IFAB initially approved a fixed size of 105 ...
Boylan enrollment continues to shrinks to only 570 students, more Big Northern size than NIC-10. But Titans' football team aims as high as ever.
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