1961 Major League Baseball season 1961 Major League Baseball season The 1961 Major League Baseball season was played from April 10 to October 12, 1961. That season saw the New York Yankees defeat the Cincinnati Reds in five games in the World Series. The season is best known for Yankee teammates Roger Maris' and Mickey Mantle's pursuit of Babe Ruth's prestigious 34-year-old single-season home run record of 60. Maris ultimately broke the record when he hit his 61st home run on the final day of the regular season, while Mantle was forced out of the lineup in late-September due to a hip infection and finished
Major League Baseball postseason organizations, steeped in tradition with roots dating back to the 1870s. The final series to determine its champion has been called the "World Series" (originally "World's Championship Series" and then "World's Series") as far back as the National League's contests with the American Association starting at the beginning of the 1880s. In 1903, the two modern Major League Baseball leagues began annual postseason play with a one-round system in which the American League team with the best record faced the National League team with the best record in a best-of-seven series (in 1903, 1919, 1920, and 1921 it was best-of-nine)