See also: 1943 in sports, Other events of 1944, 1945 in sports
Many sporting events did not take place because of World War II.
- May 7 - Chucho Ramos made his major league debut as first baseman and outfielder with the Cincinnati Reds. He was the third baseball player from Venezuela to play Major League Baseball.
- June 10 - 15-year old Joe Nuxhall becomes the youngest baseballer to pitch a game in major league history.
- World Series: St. Louis Cardinals defeats St. Louis Browns, 4 games to 2.
- Hall of Fame election: Commissioner Kenesaw Mountain Landis is elected by the Hall of Fame Committee in December following his death the previous month. The long-delayed selection of at least 10 players from the 19th century is promised the following year.
Births
- May 9 – Laurence Richon Owen, U.S. figure skating champion (d. 1961)