page_title: Baseball (ball)
hierarchical_section_title: Baseball (ball)
context_page_description: A baseball is a ball used in the sport of the same name. The ball comprises a rubber or cork center wrapped in yarn and covered with white horsehide or cowhide. A regulation baseball is 9–​9 ¹⁄₄ inches in circumference, with a mass of 5 to ​5 ¹⁄₄ oz.
  The leather cover is commonly formed from two peanut-shaped pieces stitched together, typically with red-dyed thread. That stitching plays a significant role in the trajectory of a thrown baseball due to the drag caused by the interaction between the stitching and the air. Controlling the orientation of the stitches and the speed of the ball's rotation allows a pitcher to affect the behavior of the pitched ball in specific ways. Commonly employed pitches include the curveball, the slider, the two-seam fastball, the four-seam fastball, the sinker, the cutter and the changeup.
context_section_description: A baseball is a ball used in the sport of the same name. The ball comprises a rubber or cork center wrapped in yarn and covered with white horsehide or cowhide. A regulation baseball is 9–​9 ¹⁄₄ inches (229–235 mm) in circumference (​2 ⁵⁵⁄₆₄–​2 ¹⁵⁄₁₆ in. or 73–75 mm in diameter), with a mass of 5 to ​5 ¹⁄₄ oz. (142 to 149 g).
  The leather cover is commonly formed from two peanut-shaped pieces stitched together, typically with red-dyed thread. That stitching plays a significant role in the trajectory of a thrown baseball due to the drag caused by the interaction between the stitching and the air. Controlling the orientation of the stitches and the speed of the ball's rotation allows a pitcher to affect the behavior of the pitched ball in specific ways. Commonly employed pitches include the curveball, the slider, the two-seam fastball, the four-seam fastball, the sinker, the cutter and the changeup.
caption: A typical baseball
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