January 4, 1912|
|Died: December 19, 1998
|Batted: Switch||Threw: Left|
|April 17, 1945 for the Boston Braves|
|Last MLB appearance|
|July 4, 1945 for the Boston Braves|
|Runs batted in||44|
Joseph John Mack (born Joseph John Maciarz, January 4, 1912 – December 19, 1998) was a Major League Baseball first baseman who played for the Boston Braves in 1945. The 33-year-old rookie was a native of Chicago, Illinois.
Mack is one of many ballplayers who only appeared in the major leagues during World War II. He made his major league debut on April 17, 1945 (Opening Day) against the New York Giants at Braves Field. He was Boston's regular first baseman until the July 4, when he played in his last big league game.
Season and career totals include 66 games played, a .231 batting average (60-for-260), 3 home runs, 44 runs batted in, and 30 runs scored. He made 6 errors in 65 games at first base and had a fielding percentage of .991.
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