Denver Clayton Lemaster (born February 25, 1939) was a Major League Baseball pitcher from 1962 to 1972 for the Milwaukee Braves, Atlanta Braves, Houston Astros, and Montreal Expos. During his decade-long career, LeMaster won 90 games and lost 105. While with the Atlanta Braves he pitched a one-hitter against the St. Louis Cardinals. On August 14, 1966, Lemaster recorded a then team record of 14 strikeouts in one game.

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