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| | The Mighty Fastball - Addict Baseball and Football Forum |
 | | In the Dead Ball Era (1903-1919), a "hopping" fast ball was prized, because it led to strikeouts, pop ups, and fly balls, which were generally not dangerous in that era. |
 | | In the lively ball era (beginning in 1920), the "sinking" fast ball was more prized, because it kept the ball in the infield, and kept down the number of home runs. |
 | | However, while some pitchers could make a ball hop and some people could make a ball "sink," there is no evidence of any major-league pitcher, before 1950, doing both, or switching between one and the other (Satchel Paige threw two distinct fastballs in the 1930s, when he pitched in the Negro Leagues. |
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