Michael Francis McCormick (September 29, 1938 – June 13, 2020) was an American baseball pitcher who played 16 seasons in Major League Baseball (MLB). He played for the New York/San Francisco Giants, Baltimore Orioles, Washington Senators, New York Yankees and Kansas City Royals from 1956 to 1971. He batted and threw left-handed and served primarily as a starting pitcher.
Signed by the Giants as a bonus baby, McCormick went directly to the major leagues and made his debut on September 3, 1956. After spending seven seasons with the organization, he was traded to the Baltimore Orioles and played two years there before being dealt again, this time to the Washington Senators. He returned to the Giants in 1967 and in his first season back with the team, he became the first pitcher in Giants franchise history to win the Cy Young Award. In the middle of the 1970 season, he was traded to the New York Yankees, who released him before the start of the next season. He then signed with the Kansas City Royals, with whom he played his last game on May 22, 1971.
McCormick was described, apparently in good faith, as the player who hit the 500th home run by an MLB pitcher. However, it is unclear how this was calculated, in an age without baseball encyclopedias, and it appears to have been a considerable under-estimate. In contrast, the claim that he was responsible for giving up Hank Aaron’s 500th home run is undoubtedly correct. Because of these two reports, he personalized his license plate with the words “Mr. 500”.
