Major League Baseball - Teams

1997-2004 (8 seasons in MLB)
83-79 average record 1

Joined the American League as an expansion team to begin the 1961 season. Left Los Angeles and relocated to Anaheim to begin the 1966 season.

Arizona Diamondbacks

1998-2018 (21 seasons in MLB)
79-81 average record 1

Joined the National League as an expansion team to begin the 1998 season.

Atlanta Braves

1966-2018 (53 seasons in MLB)
81-77 average record 1

Left the National Association to become one of 8 founding clubs of the National League in 1876. Left Boston and relocated to Milwaukee to begin the 1953 season. Left Milwaukee and relocated to Atlanta to begin the 1966 season. Franchise currently exists as the Atlanta Braves.

Baltimore Orioles

1901-2018 (118 seasons in MLB)
80-77 average record 3

Began as Milwaukee Brewers in 1894 and were one of the original AL franchises in 1901. Became St. Louis Browns in 1902 and relocated to Baltimore to become Orioles in 1954.

Boston Red Sox

1908-2018 (111 seasons in MLB)
81-75 average record 7

One of the eight original American League teams beginning with the 1901 season.

Boston Braves

1912-1952 (41 seasons in MLB)
68-83 average record 1

Boston Bees

1936-1940 (5 seasons in MLB)
71-81 average record

Boston Rustlers

1911-1911 (1 season in MLB)
44-107 record

Boston Doves

1907-1910 (4 seasons in MLB)
55-97 average record

Boston Americans

1901-1907 (7 seasons in MLB)
75-70 average record 1

One of the eight original American League teams beginning with the 1901 season.

Boston Beaneaters

1901-1906 (6 seasons in MLB)
59-86 average record

Brooklyn Dodgers

1913-1957 (45 seasons in MLB)
85-69 average record 1

Left the American Association to join the National League to begin the 1890 season. Left Brooklyn and relocated to Los Angeles to begin the 1957 season. Franchise currently exists as the Los Angeles Dodgers.

Brooklyn Robins

1914-1931 (18 seasons in MLB)
76-75 average record

Brooklyn Trolley Dodgers

1911-1912 (2 seasons in MLB)
61-91 average record

Brooklyn Superbas

1901-1910 (10 seasons in MLB)
63-85 average record

California Angels

1965-1996 (32 seasons in MLB)
76-82 average record

Joined the American League as an expansion team to begin the 1961 season. Left Los Angeles and relocated to Anaheim to begin the 1966 season.

Chicago Cubs

1903-2018 (116 seasons in MLB)
79-77 average record 2

Left the National Association to become one of 8 founding clubs of the National League in 1876.

Chicago White Sox

1901-2018 (118 seasons in MLB)
78-77 average record 3

One of the eight original American League teams beginning with the 1901 season.

Chicago Orphans

1901-1902 (2 seasons in MLB)
61-78 average record

Left the National Association to become one of 8 founding clubs of the National League in 1876.

Cincinnati Reds

1901-2018 (118 seasons in MLB)
78-78 average record 5

Left the American Association to join the National League to begin the 1890 season. Franchise currently exists as the Cincinnati Reds.

Cincinnati Redlegs

1954-1959 (6 seasons in MLB)
78-76 average record

Left the American Association to join the National League to begin the 1890 season. Franchise currently exists as the Cincinnati Reds.

Cleveland Indians

1915-2018 (104 seasons in MLB)
80-76 average record 2

One of the eight original American League teams beginning with the 1901 season.

Cleveland Naps

1903-1914 (12 seasons in MLB)
78-74 average record

One of the eight original American League teams beginning with the 1901 season.

Cleveland Bronchos

1902-1902 (1 season in MLB)
69-67 record

One of the eight original American League teams beginning with the 1901 season.

Cleveland Blues

1901-1901 (1 season in MLB)
54-82 record

One of the eight original American League teams beginning with the 1901 season.

Colorado Rockies

1993-2018 (26 seasons in MLB)
74-83 average record

Joined the National League as an expansion team to begin the 1993 season.

Detroit Tigers

1901-2018 (118 seasons in MLB)
79-77 average record 4

One of the eight original American League teams beginning with the 1901 season.

Florida Marlins

1993-2011 (19 seasons in MLB)
76-83 average record 2

Joined the National League as an expansion team to begin the 1993 season.

Houston Astros

1965-2018 (54 seasons in MLB)
79-80 average record

Joined the National League as an expansion team to begin the 1962 season. Moved to the American League in 2013 in order to faciliate MLB divisional realignment.

Houston Colt .45's

1962-1964 (3 seasons in MLB)
65-96 average record

Joined the National League as an expansion team to begin the 1962 season. Moved to the American League in 2013 in order to faciliate MLB divisional realignment.

Kansas City Royals

1969-2018 (50 seasons in MLB)
76-82 average record 1

Joined the American League as an expansion team to begin the 1969 season.

Kansas City Athletics

1955-1967 (13 seasons in MLB)
64-94 average record

One of the eight original American League teams beginning with the 1901 season. Left Philadelphia to relocate in Kansas City to begin the 1955 season. Left Kansas City to relocate to Oakland to begin the 1968 season.

Los Angeles Dodgers

1958-2018 (61 seasons in MLB)
85-73 average record 5

Los Angeles Angels

1961-2017 (57 seasons in MLB)
77-85 average record

Joined the American League as an expansion team to begin the 1961 season. Left Los Angeles and relocated to Anaheim to begin the 1966 season.

Los Angeles Angels of Anaheim

2005-2015 (11 seasons in MLB)
90-72 average record

Joined the American League as an expansion team to begin the 1961 season. Left Los Angeles and relocated to Anaheim to begin the 1966 season.

Miami Marlins

2012-2018 (7 seasons in MLB)
69-86 average record

Joined the National League as an expansion team to begin the 1993 season.

Milwaukee Brewers

1901-2018 (118 seasons in MLB)
76-82 average record

Began as Milwaukee Brewers in 1894 and were one of the original AL franchises in 1901. Became St. Louis Browns in 1902 and relocated to Baltimore to become Orioles in 1954.

Milwaukee Braves

1953-1965 (13 seasons in MLB)
88-68 average record 1

Minnesota Twins

1961-2018 (58 seasons in MLB)
78-80 average record 2

One of the eight original American League teams beginning with the 1901 season. Left Washington DC to relocate to Minnesota to begin the 1961 season.

Montreal Expos

1969-2004 (36 seasons in MLB)
77-82 average record

Joined the National League as an expansion team to begin the 1969 season. Left Montreal and relocated to Washington DC to begin the 2005 season.

New York Mets

1962-2018 (57 seasons in MLB)
76-83 average record 2

Joined the National League as an expansion team to begin the 1962 season.

New York Yankees

1913-2018 (106 seasons in MLB)
90-66 average record 27

One of the eight original American League teams beginning with the 1901 season. Left Baltimore and relocated to New York to begin the 1903 season.

New York Giants

1901-1957 (57 seasons in MLB)
84-67 average record 5

Entered the National League in 1883. Left New York and relocated to San Francisco to begin the 1958 season.

New York Highlanders

1903-1912 (10 seasons in MLB)
73-76 average record

One of the eight original American League teams beginning with the 1901 season. Left Baltimore and relocated to New York to begin the 1903 season.

Oakland Athletics

1968-2018 (51 seasons in MLB)
82-76 average record 4

Philadelphia Phillies

1901-2017 (117 seasons in MLB)
72-83 average record 2

Entered the National League in 1883. Franchise currently exists as the Philadelphia Phillies.

Philadelphia Athletics

1901-1954 (54 seasons in MLB)
72-79 average record 5

Philadelphia Blue Jays

1943-1944 (2 seasons in MLB)
63-91 average record

Entered the National League in 1883. Franchise currently exists as the Philadelphia Phillies.

Pittsburg Pirates

1901-1911 (11 seasons in MLB)
94-56 average record 1

Left the American Association to join the National League to begin the 1887 season. Franchise currently exists as the Pittsburgh Pirates.

Pittsburgh Pirates

1912-2018 (107 seasons in MLB)
77-78 average record 4

Left the American Association to join the National League to begin the 1887 season. Franchise currently exists as the Pittsburgh Pirates.

San Diego Padres

1969-2018 (50 seasons in MLB)
73-85 average record

Joined the National League as an expansion team to begin the 1969 season.

San Francisco Giants

1958-2018 (61 seasons in MLB)
82-77 average record 2

Entered the National League in 1883. Left New York and relocated to San Francisco to begin the 1958 season.

Seattle Mariners

1977-2018 (42 seasons in MLB)
74-83 average record

Joined the American League as an expansion team to begin the 1977 season.

Seattle Pilots

1969-1969 (1 season in MLB)
64-98 record

Joined the American League as an expansion team to begin the 1969 season. Left Seattle and relocated to Milwaukee to begin the 1970 season. Moved to the National League in 1998 in order to faciliate MLB divisional realignment.

St. Louis Cardinals

1901-2018 (118 seasons in MLB)
81-74 average record 11

After the American Association folded, they joined the National League in 1892. Franchise currently exists as the St. Louis Cardinals.

St. Louis Browns

1902-1953 (52 seasons in MLB)
66-86 average record

Began as Milwaukee Brewers in 1894 and were one of the original AL franchises in 1901. Became St. Louis Browns in 1902 and relocated to Baltimore to become Orioles in 1954.