A pitching rubber is a piece of equipment used in baseball and softball that marks the spot where the pitcher must stand to throw the ball. It is a rectangular, raised block located on the pitcher's mound. The pitcher uses the rubber for balance and to push off when delivering the pitch. The rubber helps ensure that the pitcher follows the correct rules and positioning for the throw. It is typically made of rubber or similar materials and is placed at a specific distance from the batter's box.

英語での「pitching rubber」の定義と意味

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