List of Major League Baseball longest winning streaks


This is a list of the longest team winning streaks or unbeaten streaks in Major League Baseball history. Streaks started at the end of one season are carried over into the following season. The lists below include streaks that consist entirely of regular-season games, streaks from the predecessor National Association, streaks of playoff games and World Series games, and streaks that include both regular-season and postseason games.
The 1916 New York Giants hold the record for the longest winning streak in MLB history at 26. The Chicago Cubs franchise has won 21 games twice, once in 1880 and once in 1935.
The 2017 Cleveland Indians won 22 straight games, the longest winning streak in American League history.
The longest winning streak consisting only of playoff games stands at 12 consecutive wins, by the 1927, 1928 and 1932 New York Yankees and tied by the 1998–99 Yankees. For streaks that have included both regular and postseason games, the 1970 and 1971 Baltimore Orioles hold the top two positions with 17 and 16 consecutive victories, respectively.
Several entries in the table are denoted as including ties. In the early days of baseball, a game that was postponed due to weather or darkness was replayed from the beginning, but all statistics from the game were counted. In official records, the game is unofficial but is listed as a tie.

Key

Game streaks

Regular season

This list contains the top 30 streaks consisting entirely of regular-season games.

National Association

1Denotes season in which team won a pennant in the American Association

Postseason

This list contains only the top 10 streaks consisting entirely of postseason games.

World Series

This list contains only the top 10 streaks consisting entirely of World Series games.

Regular season and postseason

This list contains only the top 10 streaks that involve both regular season games and games which occurred in the postseason.

Series streaks

Postseason

This list contains only the top 10 streaks consisting entirely of postseason series. For the purpose of this list, one-game wild card matchups, such as the 2012 Cardinals' win, and the Giants' wild card wins in 2014 and 2016, are counted.