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A typical baseball. A baseball is the ball used in the sport of baseball. It consists of a rubber or cork center wrapped in yarn and covered with white natural horsehide or cowhide, or a synthetic composite leather. A regulation baseball is 9 to 9.25 inches (229 to 235 mm) in circumference i.e. 2.86 to 2.94 inches (73 to 75 mm) in diameter ...
Each circle is 5 feet (1.5 m) in diameter, and the centers of the circles are 74 feet (23 m) apart. A straight line drawn between the centers of the two on-deck circles should pass 10 feet (3 m) behind home plate. [1] [2] In the Official Baseball Rules published by Major League Baseball, the on-deck circle is referred to as the "next batter's box".
2.25–2.625 inches (5.72–6.67 cm) in diameter and no longer than 42 inches (110 cm). Must be made of wood at the professional level; may be made of aluminum in high school and college. No more than 2.28125 inches (5.7944 cm) in diameter, no longer than 34 inches (86 cm) and no more than 38 ounces (1,100 g) in weigth.
The Official Professional Baseball Rules Book governs all aspects of the game of Major League Baseball beyond what happens on the field of play. There are a number of sources for these rules, but they all ultimately are sanctioned by the Office of the Commissioner of Baseball .
In Major League Baseball, a regulation mound is 18 feet (5.5 m) in diameter, with the center 59 feet (18 m) from the rear point of home plate, on the line between home plate and second base. The front edge of the pitcher's plate or rubber is 18 inches (46 cm) behind the center of the mound, making the front edge's midpoint 60 feet 6 inches from ...
Major League Baseball (MLB) and Nippon Professional Baseball (NPB) are the highest levels of baseball in the United States and Japan, respectively. MLB started in 1876, while NPB was not formed until 1950, following reorganization of the Japanese Baseball League, which had been in existence since 1936. Though ostensibly the same game, baseball ...
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The strike zone is a volume of space, a vertical right pentagonal prism. Its sides are vertical planes extending up from the edges of home plate.The official rules of Major League Baseball define the top of the strike zone as the midpoint between the top of the batter's shoulders and the top of the uniform pants, and the bottom of the strike zone is at the hollow beneath the kneecap, both ...