This is a list of Major League Baseball (MLB) franchise postseason and World Series streaks. The list includes only the modern World Series between the American League (AL) and the National League (NL), not the various 19th-century championship series.

The most successful postseason team in MLB history is the New York Yankees, who have achieved three of the four instances of a franchise winning more than two World Series championships in a row (one streak each of durations 3, 4, and 5 seasons) and five of the six instances of a franchise winning the league pennant (i.e., an appearance in the World Series) more than three times in a row (three streaks of 4 seasons and two streaks of 5 seasons). The only other franchises to achieve these milestones are the Oakland Athletics, who won three consecutive championships from 1972 to 1974, and the New York Giants, who won four consecutive pennants from 1921 to 1924. The Yankees also achieved a remarkable run of appearing in 15 of the 18 World Series from 1947 to 1964.

Beginning in 1969, MLB split into four divisions, and the winners of each competed in the League Championship Series, with the winners advancing to the World Series. When a multi-tier playoff system was implemented in 1995, the LCS remained the series that determined the pennant-winner. The longest streak of consecutive LCS appearances belongs to the Atlanta Braves with 8 in a row from 1991 to 1999 (not counting 1994, when there were no playoffs), while the second-longest belongs to the Houston Astros who have the longest active streak with 7 in a row from 2017 to 2023.

Further expansion of the postseason began in 1995, with eight teams entering the playoffs each year (further expanded to ten teams in 2012). In this era, the Braves entered the postseason 14 consecutive years from 1991 to 2005 (again not counting 1994), while the Yankees had a streak of 13 appearances from 1995 to 2007. However, all other postseason appearance streaks of 6 years or more predate the expanded-postseason era and are mentioned above, except for an ongoing 11-year run by the Los Angeles Dodgers (2013–2023).

World Series championship streaks

The Yankees have achieved one streak each of three, four, and five championships in a row, and the Athletics have achieved a streak of three in a row. Back-to-back championships have been achieved an additional ten times.

Length Team Seasons
5New York Yankees1949–1953
4New York Yankees1936–1939
3Oakland Athletics1972–1974
3New York Yankees1998–2000
2Chicago Cubs1907–1908
2Philadelphia Athletics1910–1911
2Boston Red Sox1915–1916
2New York Giants1921–1922
2New York Yankees1927–1928
2Philadelphia Athletics1929–1930
2New York Yankees1961–1962
2Cincinnati Reds1975–1976
2New York Yankees1977–1978
2Toronto Blue Jays1992–1993

Near streaks: Runs during which a franchise won World Series championships at least 70% of the time, with gaps of no more than one year:

Length Team Seasons
6 of 7New York Yankees1947, 1949–1953
6 of 8New York Yankees1936–1939, 1941, 1943
4 of 5New York Yankees1996, 1998–2000
3 of 4Philadelphia Athletics1910–1911, 1913
3 of 4Boston Red Sox1915–1916, 1918

World Series appearance (pennant) streaks

The Yankees have achieved five separate streaks of four or five pennants in a row, and the Giants achieved one streak of four in a row. Three pennants in a row have been achieved an additional twelve times, and back-to-back pennants an additional twenty-one times.

Bold indicates a current streak.

Length Team Seasons
5New York Yankees1949–1953
5New York Yankees1960–1964
4New York Giants1921–1924
4New York Yankees1936–1939
4New York Yankees1955–1958
4New York Yankees1998–2001
3Chicago Cubs1906–1908
3Detroit Tigers1907–1909
3New York Giants1911–1913
3New York Yankees1921–1923
3New York Yankees1926–1928
3Philadelphia Athletics1929–1931
3New York Yankees1941–1943
3St. Louis Cardinals1942–1944
3Baltimore Orioles1969–1971
3Oakland Athletics1972–1974
3New York Yankees1976–1978
3Oakland Athletics1988–1990
2Philadelphia Athletics1910–1911
2Philadelphia Athletics1913–1914
2Boston Red Sox1915–1916
2Washington Senators1924–1925
2St. Louis Cardinals1930–1931
2Detroit Tigers1934–1935
2New York Giants1936–1937
2Cincinnati Reds1939–1940
2Brooklyn Dodgers1952–1953
2Brooklyn Dodgers1955–1956
2Milwaukee Braves1957–1958
2Los Angeles Dodgers1965–1966
2St. Louis Cardinals1967–1968
2Cincinnati Reds1975–1976
2Los Angeles Dodgers1977–1978
2Atlanta Braves1991–1992
2Toronto Blue Jays1992–1993
2Atlanta Braves1995–1996
2Philadelphia Phillies2008–2009
2Texas Rangers2010–2011
2Kansas City Royals2014–2015
2Los Angeles Dodgers2017–2018
2Houston Astros2021–2022

Near streaks: Runs during which a franchise won its league pennant at least 70% of the time, with gaps of no more than one year:

Length Team Seasons
15 of 18New York Yankees1947, 1949–1953, 1955–1958, 1960–1964
7 of 8New York Yankees1936–1939, 1941–1943
6 of 8New York Yankees1996, 1998–2001, 2003
4 of 5Chicago Cubs1906–1908, 1910
4 of 5Philadelphia Athletics1910–1911, 1913–1914
4 of 5St. Louis Cardinals1942–1944, 1946
4 of 5Brooklyn Dodgers1952–1953, 1955–1956
4 of 5Atlanta Braves1991–1992*, 1995–1996
3 of 4Boston Red Sox1915–1916, 1918
3 of 4St. Louis Cardinals1928, 1930–1931
3 of 4Los Angeles Dodgers1963, 1965–1966
3 of 4Los Angeles Dodgers2017–2018, 2020
3 of 4Houston Astros2019, 2021–2022

* Because the 1994 playoffs were cancelled, the year 1994 is not counted as either a part or an interruption of any streak.

League Championship Series appearance streaks

The Braves appeared in every LCS held from 1991 to 1999, which is eight in a row, winning five league pennants and one World Series championship during that time. The American League record is held by the Houston Astros, who have appeared in the ALCS in seven straight seasons from 2017 to 2023 that has resulted in four pennants and two world titles. They are the only team to appear in an LCS in seven straight completed seasons, as the 90s Braves did not compete in the 1994 NLCS due to the season not being completed. Incidentally, the LCS was the only round preceding the World Series until 1995, when the Division Series was created; the Wild Card Series has acted as the first round for most of the playoff teams on a regular basis since 2022.

The Oakland Athletics in their "Swingin' A's" era previously held the AL record with five appearances in a row, which saw them win three world titles. The Yankees and Cardinals have each achieved an LCS appearance streak of four in a row. Three LCS appearances in a row have been achieved an additional thirteen times, and back-to-back LCS appearances an additional twenty-two times.

Three teams (the Orioles, Pirates, and Yankees) achieved multiple LCS appearance streaks in and around the 1970s, each adding up to five appearances in six years.

The LCS began in 1969. Before that, the two regular season champions were awarded the pennants and went directly to the World Series.

Bold indicates a current streak.

Length Team Seasons
8Atlanta Braves1991–1993*, 1995–1999
7Houston Astros2017–2023
5Oakland Athletics1971–1975
4New York Yankees1998–2001
4St. Louis Cardinals2011–2014
3Baltimore Orioles1969–1971
3Pittsburgh Pirates1970–1972
3Kansas City Royals1976–1978
3New York Yankees1976–1978
3Philadelphia Phillies1976–1978
3Oakland Athletics1988–1990
3Pittsburgh Pirates1990–1992
3Toronto Blue Jays1991–1993
3St. Louis Cardinals2004–2006
3Philadelphia Phillies2008–2010
3Detroit Tigers2011–2013
3Chicago Cubs2015–2017
3Los Angeles Dodgers2016–2018
2Minnesota Twins1969–1970
2Cincinnati Reds1972–1973
2Baltimore Orioles1973–1974
2Pittsburgh Pirates1974–1975
2Cincinnati Reds1975–1976
2Los Angeles Dodgers1977–1978
2New York Yankees1980–1981
2Kansas City Royals1984–1985
2Baltimore Orioles1996–1997
2Cleveland Indians1997–1998
2New York Mets1999–2000
2Seattle Mariners2000–2001
2Boston Red Sox2003–2004
2New York Yankees2003–2004
2Houston Astros2004–2005
2Boston Red Sox2007–2008
2Los Angeles Dodgers2008–2009
2New York Yankees2009–2010
2Texas Rangers2010–2011
2Kansas City Royals2014–2015
2Toronto Blue Jays2015–2016
2Atlanta Braves2020–2021
2Los Angeles Dodgers2020–2021
2 Philadelphia Phillies 2022-2023

Near streaks: Runs during which a franchise appeared in its league championship series at least 70% of the time, with gaps of no more than one year:

Length Team Seasons
9 of 10Atlanta Braves1991–1993*, 1995–1999, 2001
7 of 9New York Yankees1996, 1998–2001, 2003–2004
5 of 6Baltimore Orioles1969–1971, 1973–1974
5 of 6Pittsburgh Pirates1970–1972, 1974–1975
5 of 6New York Yankees1976–1978, 1980–1981
5 of 6Los Angeles Dodgers2016–2018, 2020–2021
5 of 7Cincinnati Reds1970, 1972–1973, 1975–1976
5 of 7St. Louis Cardinals2000, 2002, 2004–2006
4 of 5Kansas City Royals1976–1978, 1980
4 of 5Philadelphia Phillies1976–1978, 1980
4 of 5Oakland Athletics1988–1990, 1992
4 of 5Toronto Blue Jays1989, 1991–1993
3 of 4Cleveland Indians1995, 1997–1998
3 of 4New York Yankees2009–2010, 2012

* Because the 1994 playoffs were cancelled, the year 1994 is not counted as either a part or an interruption of any streak.

Postseason appearance streaks

The Braves and the Yankees have achieved respective streaks of 14 and 13 consecutive appearances in the postseason, centered on the 1990s and 2000s. The Dodgers have an ongoing streak of 11 consecutive appearances. Five postseason appearances in a row have been achieved an additional seven times, four in a row an additional nine times, three in a row an additional twenty-nine times, and back-to-back postseason appearances an additional fifty-two times.

Regarding near-streaks, the Yankees appeared in 17 of 18 postseasons from 1995 to 2012, 15 of 18 postseasons from 1947 to 1964 (see pennant near-streaks above), and 7 of 8 postseasons twice, from 1936 to 1943 (see pennant near-streaks above) and 2015 to 2022. The Astros have currently appeared in 8 of 9 postseasons, from 2015 to 2023. In addition, five teams have appeared in postseason near-streaks of 6 (having appeared in 6 of 7 or 8 consecutive postseasons). The Indians (1995 to 2001), St. Louis Cardinals (twice, 2000 to 2006 and 2009 to 2015), and Red Sox (2003 to 2009) appeared in 6 of 7 postseasons, while the Phillies (1976 to 1983) and Angels (2002 to 2009) appeared in 6 of 8 postseasons.

Postseason appearance streaks have become more common in recent years, as the postseason has been progressively restructured to include more teams (originally two, four since 1969, eight since 1995, ten since 2012, sixteen in 2020, ten in 2021, twelve since 2022). The Astros, who have reached the postseason seven straight times from 2017 to 2023, are the only team to ever win a postseason series in seven straight seasons.

Bold indicates a current streak.

Length Team Seasons
14Atlanta Braves1991–1993*, 1995–2005
13New York Yankees1995–2007
11Los Angeles Dodgers2013–2023
7Houston Astros2017–2023
6New York Yankees2017–2022
6Atlanta Braves2018–2023
5New York Yankees1949–1953
5New York Yankees1960–1964
5Oakland Athletics1971–1975
5Cleveland Indians1995–1999
5Philadelphia Phillies2007–2011
5St. Louis Cardinals2011–2015
5Tampa Bay Rays2019–2023
4New York Giants1921–1924
4New York Yankees1936–1939
4New York Yankees1955–1958
4Oakland Athletics2000–2003
4New York Yankees2009–2012
4Detroit Tigers2011–2014
4Chicago Cubs2015–2018
4Milwaukee Brewers2018–2021
4St. Louis Cardinals2019–2022
3Chicago Cubs1906–1908
3Detroit Tigers1907–1909
3New York Giants1911–1913
3New York Yankees1921–1923
3New York Yankees1926–1928
3Philadelphia Athletics1929–1931
3New York Yankees1941–1943
3St. Louis Cardinals1942–1944
3Baltimore Orioles1969–1971
3Pittsburgh Pirates1970–1972
3Kansas City Royals1976–1978
3New York Yankees1976–1978
3Philadelphia Phillies1976–1978
3Oakland Athletics1988–1990
3Pittsburgh Pirates1990–1992
3Toronto Blue Jays1991–1993
3Houston Astros1997–1999
3St. Louis Cardinals2000–2002
3Minnesota Twins2002–2004
3Boston Red Sox2003–2005
3St. Louis Cardinals2004–2006
3Boston Red Sox2007–2009
3Los Angeles Angels of Anaheim2007–2009
3Texas Rangers2010–2012
3Oakland Athletics2012–2014
3Pittsburgh Pirates2013–2015
3Boston Red Sox2016–2018
3Cleveland Indians2016–2018
3Oakland Athletics2018–2020
2Philadelphia Athletics1910–1911
2Philadelphia Athletics1913–1914
2Boston Red Sox1915–1916
2Washington Senators1924–1925
2St. Louis Cardinals1930–1931
2Detroit Tigers1934–1935
2New York Giants1936–1937
2Cincinnati Reds1939–1940
2Brooklyn Dodgers1952–1953
2Brooklyn Dodgers1955–1956
2Milwaukee Braves1957–1958
2Los Angeles Dodgers1965–1966
2St. Louis Cardinals1967–1968
2Minnesota Twins1969–1970
2Cincinnati Reds1972–1973
2Baltimore Orioles1973–1974
2Pittsburgh Pirates1974–1975
2Cincinnati Reds1975–1976
2Los Angeles Dodgers1977–1978
2Houston Astros1980–1981
2Kansas City Royals1980–1981
2Philadelphia Phillies1980–1981
2New York Yankees1980–1981
2Milwaukee Brewers1981–1982
2Kansas City Royals1984–1985
2Los Angeles Dodgers1995–1996
2Baltimore Orioles1996–1997
2Boston Red Sox1998–1999
2Texas Rangers1998–1999
2New York Mets1999–2000
2Seattle Mariners2000–2001
2Arizona Diamondbacks2001–2002
2San Francisco Giants2002–2003
2Anaheim Angels/Los Angeles Angels of Anaheim2004–2005
2Houston Astros2004–2005
2San Diego Padres2005–2006
2Chicago Cubs2007–2008
2Los Angeles Dodgers2008–2009
2Minnesota Twins2009–2010
2Tampa Bay Rays2010–2011
2Atlanta Braves2012–2013
2Cincinnati Reds2012–2013
2Kansas City Royals2014–2015
2New York Mets2015–2016
2Texas Rangers2015–2016
2Toronto Blue Jays2015–2016
2Washington Nationals2016–2017
2Colorado Rockies2017–2018
2Minnesota Twins2019–2020
2Chicago White Sox2020–2021
2Philadelphia Phillies2022–2023
2Toronto Blue Jays2022–2023

Near streaks: Runs during which a franchise appeared in the postseason at least 70% of the time, with gaps of no more than one year:

Length Team Seasons
9 of 10Atlanta Braves1991–1993*, 1995–1999, 2001
7 of 9New York Yankees1996, 1998–2001, 2003–2004
5 of 6Baltimore Orioles1969–1971, 1973–1974
5 of 6Pittsburgh Pirates1970–1972, 1974–1975
5 of 6New York Yankees1976–1978, 1980–1981
5 of 6Los Angeles Dodgers2016–2018, 2020–2021
5 of 7Cincinnati Reds1970, 1972–1973, 1975–1976
5 of 7St. Louis Cardinals2000, 2002, 2004–2006
4 of 5Kansas City Royals1976–1978, 1980
4 of 5Philadelphia Phillies1976–1978, 1980
4 of 5Oakland Athletics1988–1990, 1992
4 of 5Toronto Blue Jays1989, 1991–1993
3 of 4Cleveland Indians1995, 1997–1998
3 of 4New York Yankees2009–2010, 2012
Length Team Seasons
17 of 18New York Yankees1995–2007, 2009–2012
15 of 18New York Yankees1947, 1949–1953, 1955–1958, 1960–1964
8 of 9Houston Astros2015, 2017–2023
7 of 8New York Yankees1936–1939, 1941–1943
7 of 8New York Yankees2015, 2017–2022
6 of 7Cleveland Indians1995–1999, 2001
6 of 7St. Louis Cardinals2000–2002, 2004–2006
6 of 7Boston Red Sox2003–2005, 2007–2009
6 of 7St. Louis Cardinals2009, 2011–2015
6 of 8Philadelphia Phillies1976–1978, 1980–1981, 1983
6 of 8Anaheim Angels/Los Angeles Angels of Anaheim2002, 2004–2005, 2007–2009
5 of 6Baltimore Orioles1969–1971, 1973–1974
5 of 6Pittsburgh Pirates1970–1972, 1974–1975
5 of 6Kansas City Royals1976–1978, 1980–1981
5 of 6New York Yankees1976–1978, 1980–1981
5 of 6Chicago Cubs2015–2018, 2020
5 of 6Milwaukee Brewers2018–2021, 2023
5 of 7Cincinnati Reds1970, 1972–1973, 1975–1976
5 of 7Cleveland Indians/Guardians2016–2018, 2020, 2022
4 of 5Chicago Cubs1906–1908, 1910
4 of 5Philadelphia Athletics1910–1911, 1913–1914
4 of 5St. Louis Cardinals1942–1944, 1946
4 of 5Brooklyn Dodgers1952–1953, 1955–1956
4 of 5Oakland Athletics1988–1990, 1992
4 of 5Toronto Blue Jays1989, 1991–1993
4 of 5Houston Astros1997–1999, 2001
4 of 5Minnesota Twins2002–2004, 2006
3 of 4Boston Red Sox1915–1916, 1918
3 of 4St. Louis Cardinals1928, 1930–1931
3 of 4Los Angeles Dodgers1963, 1965–1966
3 of 4Texas Rangers1996, 1998–1999
3 of 4Arizona Diamondbacks1999, 2001–2002
3 of 4San Francisco Giants2000, 2002–2003
3 of 4Los Angeles Dodgers2006, 2008–2009
3 of 4Tampa Bay Rays2008, 2010–2011
3 of 4Tampa Bay Rays2010–2011, 2013
3 of 4Atlanta Braves2010, 2012–2013
3 of 4Cincinnati Reds2010, 2012–2013
3 of 4Washington Nationals2014, 2016–2017
3 of 4Washington Nationals2016–2017, 2019
3 of 4Minnesota Twins2017, 2019–2020
3 of 4Toronto Blue Jays2020, 2022–2023

* Because the 1994 playoffs were cancelled, the year 1994 is not counted as either a part or an interruption of any streak.

Postseason series win streaks

The Houston Astros have achieved the longest series win streak of 7 consecutive postseasons, from 2017–present. The Atlanta Braves was the closest team in consecutive seasons with at least one playoff series win, with 5 from 1995–1999. Four consecutive seasons with at least one postseason series win have been achieved twice, three seasons in a row an additional five times, and back-to-back postseason appearances with a series win an additional sixteen times.

Postseason series wins have become more common in recent years, as the postseason has been progressively restructured to include more teams (originally two, four since 1969, eight since 1995, ten from 2012–2019 and 2021, sixteen in 2020, twelve since 2022). The Astros, who have reached the postseason seven straight times since 2017, is the only team to ever win a postseason series in seven straight seasons.

Bold indicates a current streak since 1995.

Length Team Seasons
7Houston Astros2017–present
5 Atlanta Braves 1995–1999
4New York Yankees1998–2001
4St. Louis Cardinals2011–2014
3St. Louis Cardinals2004–2006
3Philadelphia Phillies2008–2010
3Detroit Tigers2011–2013
3Chicago Cubs2015–2017
3Los Angeles Dodgers2016–2018
3New York Yankees2017–2019
2Baltimore Orioles1996–1997
2Cleveland Indians1997–1998
2New York Mets1999–2000
2Seattle Mariners2000–2001
2Boston Red Sox2003–2004
2New York Yankees2003–2004
2Houston Astros2004–2005
2Boston Red Sox2007–2008
2Los Angeles Dodgers2008–2009
2New York Yankees2009–2010
2Texas Rangers2010–2011
2Kansas City Royals2014–2015
2Toronto Blue Jays2015–2016
2Atlanta Braves2020–2021
2Los Angeles Dodgers2020–2021
2Philadelphia Phillies2022–2023

Near streaks: Runs during which a franchise appeared in the postseason and won at least one playoff series at least 70% of the time, with gaps of no more than one year:

Length Team Seasons
9 of 10Atlanta Braves1991–1993*, 1995–1999, 2001
7 of 9New York Yankees1996, 1998–2001, 2003–2004
6 of 7Los Angeles Dodgers2015–2018, 2020–2021
5 of 7St. Louis Cardinals2000, 2002, 2004–2006
3 of 4Cleveland Indians1995, 1997–1998
3 of 4New York Yankees2009–2010, 2012

* Because the 1994 playoffs were cancelled, the year 1994 is not counted as either a part or an interruption of any streak.

References

See also

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