|Born: April 3, 1929|
|April 19, 1954, for the Philadelphia Athletics|
|Last MLB appearance|
|May 19, 1962, for the Kansas City Athletics|
|Earned run average||3.98|
|Career highlights and awards|
Arthur John Ditmar (born April 3, 1929) is a former starting pitcher in Major League Baseball who played for the Athletics (Philadelphia, 1954 - Kansas City, 1955–56, 1961–62) and the New York Yankees (1957–1961). He batted and threw right-handed and was listed at 6 feet 2 inches (1.88 m) tall and 185 pounds (84 kg). Born in Winthrop, Massachusetts, he grew up in the Berkshire County city of Pittsfield, where he graduated from high school.
A finesse control pitcher, Ditmar divided his career between the Athletics and Yankees. Ditmar won 47 games for the Yankees in a span of five years, with a career-high 15 in 1960, despite not getting to pitch on a regular basis in a rotation that included Whitey Ford, Bobby Shantz, Don Larsen and Bob Turley. In a nine-season career, Ditmar compiled a 72–77 record with 552 strikeouts and a 3.98 ERA in 1,268.0 innings.
Ditmar defeated the Yankees 8–6, when the Athletics played their last game at Shibe Park in Philadelphia before moving to Kansas City. In the same game, Yankees regular catcher Yogi Berra played his only game at third base in his career, and teammate Mickey Mantle appeared at shortstop (September 26, 1954). Ditmar started and lost both Game 1 and Game 5 of the 1960 World Series for the Yankees, lasting only one-third of an inning in Game 1 and 1 and one-third inning in Game 5.
After a Budweiser television commercial of the 1980s incorporated the original radio broadcast of the 1960 World Series Game 7, with announcer Chuck Thompson incorrectly naming Ditmar instead of Ralph Terry as the pitcher off whom Bill Mazeroski hit his legendary home run, Ditmar sued Anheuser-Busch for $500,000, contending his reputation was tarnished.