Which MLB team has the worst record through 45 games?

The 1895 Louisville Colonels have the worst all-time record through 45 games. They went 7-38 in the first 45 games, and eventually finished the season at 35-96.

Worst MLB Start Through 45 Games

Team Year Record Run Differential Final Record Final Result
1 Louisville Colonels  1895 7-38 -185 35-96 No Postseason
2 St. Louis Browns 1897 8-37 -202 29-102 No Postseason
Cleveland Spiders  1899 8-37 -192 20-134 No Postseason
4 Boston Red Sox 1932 9-36 -139 43-111 Missed Playoffs
Washington Nationals  1886 9-36 -127 28-92 No Postseason
Washington Senators 1904 9-36 -123 38-113 No Postseason
Baltimore Orioles 1988 9-36 -116 54-107 Missed Playoffs
8 Oakland Athletics 2023 10-35 -161 50-112 Missed Playoffs
Louisville Colonels  1896 10-35 -148 38-93 No Postseason
Kansas City Royals 2006 10-35 -116 62-100 Missed Playoffs
Detroit Tigers 1953 10-35 -114 60-94 Missed Playoffs
St. Louis Browns 1910 10-35 -114 47-107 Missed Playoffs
Philadelphia Phillies 1904 10-35 -105 52-100 No Postseason
Philadelphia Phillies 1928 10-35 -97 43-109 Missed Playoffs
St. Louis Browns 1949 10-35 -93 53-101 Missed Playoffs
Detroit Tigers 2003 10-35 -89 43-119 Missed Playoffs
Chicago Cubs 1981 10-35 -88 38-65 Missed Playoffs
18 Boston Rustlers 1911 11-34 -127 44-107 Missed Playoffs
Louisville Colonels  1894 11-34 -101 36-94 No Postseason
Pittsburgh Pirates 1952 11-34 -96 42-112 Missed Playoffs
San Diego Padres 1987 11-34 -89 65-97 Missed Playoffs
Minnesota Twins 2016 11-34 -83 59-103 Missed Playoffs
Philadelphia Phillies 1945 11-34 -82 46-108 Missed Playoffs
Montreal Expos 1969 11-34 -81 52-110 Missed Playoffs
New York Yankees 1913 11-34 -80 57-94 Missed Playoffs
Detroit Wolverines  1885 11-34 -79 41-67 No Postseason
Cincinnati Reds 1934 11-34 -76 52-99 Missed Playoffs
Philadelphia Athletics 1946 11-34 -56 49-105 Missed Playoffs
29 Pittsburgh Alleghenys 1890 12-33 -158 23-113 No Postseason
Detroit Tigers 1996 12-33 -137 53-109 Missed Playoffs
Indianapolis Hoosiers  1887 12-33 -131 37-89 No Postseason
Louisville Colonels  1893 12-33 -127 50-75 No Postseason
Washington Nationals  1889 12-33 -117 41-83 No Postseason
Minnesota Twins 1995 12-33 -103 56-88 Missed Playoffs
Kansas City Cowboys  1886 12-33 -100 30-91 No Postseason
New York Mets 1962 12-33 -92 40-120 Missed Playoffs
Boston Beaneaters 1906 12-33 -83 49-102 Missed Playoffs
Minnesota Twins 1982 12-33 -83 60-102 Missed Playoffs
Toronto Blue Jays 1979 12-33 -80 53-109 Missed Playoffs
Atlanta Braves 2016 12-33 -73 68-93 Missed Playoffs
Philadelphia Athletics 1919 12-33 -72 36-104 Missed Playoffs
Baltimore Orioles  1892 12-33 -70 46-101 No Postseason
Kansas City Athletics 1965 12-33 -64 59-103 Missed Playoffs
44 St. Louis Browns 1896 13-32 -136 40-90 No Postseason
Philadelphia Phillies 1938 13-32 -123 45-105 Missed Playoffs
St. Louis Cardinals 1903 13-32 -115 43-94 Missed Playoffs
St. Louis Browns 1951 13-32 -113 52-102 Missed Playoffs
Philadelphia Phillies 1923 13-32 -104 50-104 Missed Playoffs
Tampa Bay Devil Rays 2001 13-32 -104 62-100 Missed Playoffs
St. Louis Browns 1936 13-32 -101 57-95 Missed Playoffs
St. Louis Cardinals 1907 13-32 -98 52-101 Missed Playoffs
Boston Red Sox 1926 13-32 -95 46-107 Missed Playoffs
Boston Red Sox 1927 13-32 -95 51-103 Missed Playoffs
Pittsburgh Pirates 1954 13-32 -95 53-101 Missed Playoffs
Chicago Cubs 1966 13-32 -88 59-103 Missed Playoffs
Houston Astros 2013 13-32 -87 51-111 Missed Playoffs
Miami Marlins 2024 13-32 -87 13-32 Season Ongoing
San Diego Padres 2003 13-32 -87 64-98 Missed Playoffs
Colorado Rockies 1993 13-32 -85 67-95 Missed Playoffs
Washington Senators 1903 13-32 -84 43-94 Missed Playoffs
Cincinnati Reds 1931 13-32 -83 58-96 Missed Playoffs
St. Louis Browns 1939 13-32 -80 43-111 Missed Playoffs
Boston Braves 1912 13-32 -79 52-101 Missed Playoffs
Cincinnati Reds 1927 13-32 -79 75-78 Missed Playoffs
Boston Doves 1909 13-32 -78 45-108 Missed Playoffs
Boston Braves 1935 13-32 -70 38-115 Missed Playoffs
St. Louis Browns 1912 13-32 -70 53-101 Missed Playoffs
Arizona Diamondbacks 1998 13-32 -69 65-97 Missed Playoffs
Miami Marlins 2013 13-32 -69 62-100 Missed Playoffs
Oakland Athletics 1994 13-32 -62 51-63 No Postseason
Kansas City Royals 2005 13-32 -60 56-106 Missed Playoffs
Boston Americans 1906 13-32 -59 49-105 Missed Playoffs
San Diego Padres 1971 13-32 -58 61-100 Missed Playoffs
San Diego Padres 1994 13-32 -50 47-70 No Postseason
Minnesota Twins 1981 13-32 -45 41-68 Missed Playoffs

Which MLB team had the worst start through 45 games but still made the postseason?

The 2005 Houston Astros started the season 15-30, but still managed to make the postseason. The Astros lost to the Chicago White Sox in the World Series.

Which MLB team had the worst start through 45 games and went on to win the world series?

The 1914 Boston Braves started the season with a 17-28 record through 45 games, but still made the postseason and then went on to win the world series.

Are any 2024 teams in the top 50 all-time worst MLB starts through 45 games?

The 2024 Miami Marlins are tied for 44th on the all-time worst MLB starts through 45 games with their 13-32 record.

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