spitball

baseball

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In baseball: Records and statistics
…the increased use of the spitball (in which moisture is applied to the surface of a ball to affect its flight), the appearance of a cadre of bigger and stronger pitchers, and conservative managerial styles (called “scientific” or “inside” baseball) all contributed to a sharp fall in total runs and…
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In baseball: The pitching repertoire
…throw what was called a spitball. Simple saliva, saliva produced by chewing tobacco or sucking on slippery elm, or sweat was applied to the ball. The ball thus treated dropped sharply at the plate. The pitch was outlawed in 1920, though pitchers then using it were allowed the pitch until…
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