World Series appeared in 9 and won 5. As of 2018, no team has won consecutive World Series championships since the New York Yankees in , , and —the longest such drought in Major League Baseball history. Until the formation of the American Association in 1882 as a second major league, the National Association of Professional Base Ball Players (1871–1875) and then the National League (founded 1876) represented the top level of organized baseball in the United States. All championships were awarded to the team with the best record at the end of the season, without a postseason series being played. From
1991 World Series winning run was scored). The 1991 World Series was the second in five seasons in which the home team won all seven games in the Series. The other time this happened was in 1987, which was also won by the Twins who defeated the St. Louis Cardinals. Game 7 of this series was the last World Series game played at the Metrodome before the Twins moved out at the end of the 2009 season, and would be the last postseason baseball game played at the venue until 2002. The pattern of the home team winning each game did not occur