Which MLB team has the longest regular season losing streak?

The Cleveland Spiders have the longest losing streak of regular season games in MLB history at 24 straight games. During this streak they lost to their opponents by an average of 5.9 runs. The streak occurred entirely during the 1899 season.

Which MLB team has the longest active regular season losing streak?

The Chicago White Sox, the Houston Astros, the Los Angeles Dodgers, the Miami Marlins, the St. Louis Cardinals, the Tampa Bay Rays and the Washington Nationals have the longest active losing streak of regular season games at 2 straight games.

Which MLB team has the most losing streaks in the all-time top 50?

The Atlanta Braves have 7 different losing streaks in the all time top 50, which is the most of any MLB franchise. The most recent qualifying losing streak by the Braves was the 17 game losing streak which started on Apr 23, 1977 and ended on May 12, 1977.

All Time Longest MLB Losing Streaks

	Team	Year(s)	Losing Streak	Streak Breaker
1	Cleveland Spiders	1899	24	@ Washington Senators Senators 5-4
2	Philadelphia Phillies	1961	23	@ Milwaukee Braves Braves 7-4
	Pittsburgh Alleghenys	1890	23	vs Cleveland Spiders Spiders 6-2
4	Baltimore Orioles	1988	21	@ Chicago White Sox White Sox 9-0
	Chicago White Sox	2024	21	@ Oakland Athletics Athletics 5-1
6	Boston Americans	1906	20	vs Chicago White Sox White Sox 3-0
	Louisville Colonels	1894	20	@ Pittsburgh Pirates Pirates 9-4
	Montreal Expos	1969	20	@ Los Angeles Dodgers Dodgers 4-3
	Philadelphia Athletics	1943	20	@ Chicago White Sox White Sox 8-1
	Philadelphia Athletics	1916	20	@ Detroit Tigers Tigers 7-1
11	Baltimore Orioles	2021	19	vs Los Angeles Angels Angels 10-6
	Boston Beaneaters	1906	19	vs St. Louis Cardinals Cardinals 6-3
	Cincinnati Reds	1914	19	@ Boston Braves Braves 3-0
	Detroit Tigers	1975	19	@ California Angels Angels 8-0
	Kansas City Royals	2005	19	@ Oakland Athletics Athletics 2-1
16	Louisville Colonels	1894	18	@ Boston Beaneaters Beaneaters 15-10
	Philadelphia Athletics	1920	18	@ Washington Senators Senators 6-2
	St. Louis Browns	1897	18	vs Cincinnati Reds Reds 5-4
	Washington Senators	1959	18	vs Cleveland Indians Indians 9-0
	Washington Senators	1948	18	@ Chicago White Sox White Sox 10-7
	Washington Senators	1903 - 1904	18	@ New York Highlanders Highlanders 9-4
22	Arizona Diamondbacks	2021	17	vs Milwaukee Brewers Brewers 5-1
	Atlanta Braves	1977	17	@ Pittsburgh Pirates Pirates 6-1
	Boston Red Sox	1926	17	@ New York Yankees Yankees 5-2
	New York Mets	1962	17	@ Chicago Cubs Cubs 4-3
	Seattle Mariners	2011	17	@ New York Yankees Yankees 9-2
	Washington Senators	1894	17	vs Louisville Colonels Colonels 12-2
28	Buffalo Bisons	1885 -	16	–
	Cleveland Spiders	1899 -	16	–
	Boston Americans	1907	16	vs St. Louis Browns Browns 1-0
	Boston Doves	1907	16	vs Pittsburgh Pirates Pirates 10-3
	Boston Rustlers	1911	16	@ St. Louis Cardinals Cardinals 5-2
	Brooklyn Dodgers	1944	16	@ Boston Braves Braves 8-5
	Chicago Cubs	1996 - 1997	16	@ New York Mets Mets 4-3
	Cincinnati Reds	1937 - 1938	16	vs Chicago Cubs Cubs 6-2
	Detroit Wolverines	1888	16	@ Indianapolis Hoosiers Hoosiers 4-2
	St. Louis Cardinals	1916 - 1917	16	@ Cincinnati Reds Reds 3-2
38	Boston Braves	1935	15	@ Cincinnati Reds Reds 4-2
	Boston Braves	1927	15	@ Chicago Cubs Cubs 11-7
	Boston Doves	1909	15	vs Brooklyn Superbas Superbas 5-1
	Boston Red Sox	1927	15	vs Philadelphia Athletics Athletics 11-3
	Chicago White Sox	1967 - 1968	15	@ Minnesota Twins Twins 3-2
	Houston Astros	2013	15	vs New York Yankees Yankees 6-2
	Louisville Colonels	1895	15	@ Washington Senators Senators 7-4
	New York Mets	1982	15	vs Houston Astros Astros 5-1
	New York Mets	1963	15	vs Houston Colt .45s Colt .45s 14-5
	Philadelphia Athletics	1937	15	@ Chicago White Sox White Sox 2-1
	St. Louis Cardinals	1909	15	vs Brooklyn Superbas Superbas 12-4
	Tampa Bay Devil Rays	2002	15	vs Baltimore Orioles Orioles 6-4
	Texas Rangers	1972	15	vs Chicago White Sox White Sox 1-0

Team

Year(s)

Losing Streak

Streak Breaker

Cleveland Spiders

1899

@ Washington Senators Senators 5-4

Philadelphia Phillies

1961

@ Milwaukee Braves Braves 7-4

Pittsburgh Alleghenys

1890