List of Major League Baseball longest losing streaks
Long MLB Losing Streaks: A simple guide
This article summarizes the longest team losing streaks in Major League Baseball history. Some streaks carry over from one season to the next. Records are shown in three groups: regular-season games, postseason games, and World Series games.
Regular-season streaks
- Official MLB all-time regular-season losing streak: 26 games, by the 1889 Louisville Colonels.
- Not counted as official MLB: 31 consecutive losses by the 1875 Brooklyn Atlantics (National Association) — a league not considered official MLB.
- Longest in the modern two-league era: 23 games, by the 1961 Philadelphia Phillies.
- American League record: 21 games, shared by the 1988 Baltimore Orioles and the 2024 Chicago White Sox.
- Top 20 regular-season streaks are listed in this category.
Postseason streaks
- Longest postseason losing streak (playoff games only): 18 games, by the Minnesota Twins (2004–2023).
- This category includes only postseason games. The top 20 postseason streaks are listed here.
World Series streaks
- There is a separate list for losing streaks that consist entirely of World Series games.
- The longest losing streak by a defending World Series Champion is 11 games, by the 1998 Florida Marlins and the 1986 Kansas City Royals.
- This section includes only World Series games.
Note: Each list focuses on the top 20 streaks in its category.
This page was last edited on 3 February 2026, at 02:16 (CET).