A three-time National LeagueAll-Star, Munger worked in 273 regular-season Major League games during his career, winning 77 and losing 56 (.583) with an earned run average of 3.83. He struck out 564 batters in 1,2282⁄3innings pitched. In 1944, he won 11 of 14 decisions in 21 games, 12 as a starter, with a 1.34 earned run average. He entered the United States Army for World War II service during the middle of that campaign,[2][3] and did not qualify for the National League's ERA title. He also missed the 1944 World Series, which delivered another Cardinal championship.
Munger took a regular turn in the Cardinal starting rotation from mid-1946 through 1950, then was traded to the Pirates in May 1952. Pittsburgh sent Munger to their top minor league affiliate, the Hollywood Stars of the Pacific Coast League, and he responded with 17- and 23-win seasons in 1954–55. During the latter year, at age 36, he registered 25 complete games and an ERA of 1.85.[4] The standout season brought Munger to the Major Leagues for one last campaign, as a relief pitcher and occasional starter for the 1956 Pirates. All told, as a minor leaguer, Munger won 152 games; as a professional, he compiled a 229–174 (.568) record during a career that stretched from 1937 to 1958.