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 Atlanta Braves and the Los Angeles Dodgers have the longest postseason streak in MLB history, at 14 consecutive non-strike affected postseasons.
Overall 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 eight in a row from 1991 to 1999 (not counting 1994, when there were no playoffs).
Further expansion of the postseason began in 1995, with eight teams entering the playoffs each year (further expanded to ten teams in 2012 and twelve in 2022). 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. The Los Angeles Dodgers (2013–2026) have an ongoing streak of 14 seasons.
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 eleven times.
Bold indicates a current streak. Length Team Seasons 5 New York Yankees 1949–1953 4 New York Yankees 1936–1939 3 Oakland Athletics 1972–1974 3 New York Yankees 1998–2000 2 Chicago Cubs 1907–1908 2 Philadelphia Athletics 1910–1911 2 Boston Red Sox 1915–1916 2 New York Giants 1921–1922 2 New York Yankees 1927–1928 2 Philadelphia Athletics 1929–1930 2 New York Yankees 1961–1962 2 Cincinnati Reds 1975–1976 2 New York Yankees 1977–1978 2 Toronto Blue Jays 1992–1993 2 Los Angeles Dodgers 2024–2025
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 7 New York Yankees 1947, 1949–1953 6 of 8 New York Yankees 1936–1939, 1941, 1943 4 of 5 New York Yankees 1996, 1998–2000 3 of 4 Philadelphia Athletics 1910–1911, 1913 3 of 4 Boston Red Sox 1915–1916, 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 Seasons5 New York Yankees 1949–19535 New York Yankees 1960–19644 New York Giants 1921–19244 New York Yankees 1936–19394 New York Yankees 1955–19584 New York Yankees 1998–20013 Chicago Cubs 1906–19083 Detroit Tigers 1907–19093 New York Giants 1911–19133 New York Yankees 1921–19233 New York Yankees 1926–19283 Philadelphia Athletics 1929–19313 New York Yankees 1941–19433 St. Louis Cardinals 1942–19443 Baltimore Orioles 1969–19713 Oakland Athletics 1972–19743 New York Yankees 1976–19783 Oakland Athletics 1988–19902 Philadelphia Athletics 1910–19112 Philadelphia Athletics 1913–19142 Boston Red Sox 1915–19162 Washington Senators 1924–19252 St. Louis Cardinals 1930–19312 Detroit Tigers 1934–19352 New York Giants 1936–19372 Cincinnati Reds 1939–19402 Brooklyn Dodgers 1952–19532 Brooklyn Dodgers 1955–19562 Milwaukee Braves 1957–19582 Los Angeles Dodgers 1965–19662 St. Louis Cardinals 1967–19682 Cincinnati Reds 1975–19762 Los Angeles Dodgers 1977–19782 Atlanta Braves 1991–19922 Toronto Blue Jays 1992–19932 Atlanta Braves 1995–19962 Philadelphia Phillies 2008–20092 Texas Rangers 2010–20112 Kansas City Royals 2014–20152 Los Angeles Dodgers 2017–20182 Houston Astros 2021–20222 Los Angeles Dodgers 2024–2025
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 Seasons15 of 18 New York Yankees 1947, 1949–1953, 1955–1958, 1960–19647 of 8 New York Yankees 1936–1939, 1941–19436 of 8 New York Yankees 1996, 1998–2001, 20034 of 5 Chicago Cubs 1906–1908, 19104 of 5 Philadelphia Athletics 1910–1911, 1913–19144 of 5 St. Louis Cardinals 1942–1944, 19464 of 5 Brooklyn Dodgers 1952–1953, 1955–19564 of 5 Atlanta Braves 1991–1992*, 1995–19963 of 4 Boston Red Sox 1915–1916, 19183 of 4 St. Louis Cardinals 1928, 1930–19313 of 4 Los Angeles Dodgers 1963, 1965–19663 of 4 Los Angeles Dodgers 2017–2018, 20203 of 4 Houston Astros 2019, 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 Seasons8 Atlanta Braves 1991–1993*, 1995–19997 Houston Astros 2017–20235 Oakland Athletics 1971–19754 New York Yankees 1998–20014 St. Louis Cardinals 2011–20143 Baltimore Orioles 1969–19713 Pittsburgh Pirates 1970–19723 Kansas City Royals 1976–19783 New York Yankees 1976–19783 Philadelphia Phillies 1976–19783 Oakland Athletics 1988–19903 Pittsburgh Pirates 1990–19923 Toronto Blue Jays 1991–19933 St. Louis Cardinals 2004–20063 Philadelphia Phillies 2008–20103 Detroit Tigers 2011–20133 Chicago Cubs 2015–20173 Los Angeles Dodgers 2016–20182 Minnesota Twins 1969–19702 Cincinnati Reds 1972–19732 Baltimore Orioles 1973–19742 Pittsburgh Pirates 1974–19752 Cincinnati Reds 1975–19762 Los Angeles Dodgers 1977–19782 New York Yankees 1980–19812 Kansas City Royals 1984–19852 Baltimore Orioles 1996–19972 Cleveland Indians 1997–19982 New York Mets 1999–20002 Seattle Mariners 2000–20012 Boston Red Sox 2003–20042 New York Yankees 2003–20042 Houston Astros 2004–20052 Boston Red Sox 2007–20082 Los Angeles Dodgers 2008–20092 New York Yankees 2009–20102 Texas Rangers 2010–20112 Kansas City Royals 2014–20152 Toronto Blue Jays 2015–20162 Atlanta Braves 2020–20212 Los Angeles Dodgers 2020–20212 Philadelphia Phillies 2022–20232 Los Angeles Dodgers 2024–2025
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 Seasons9 of 10 Atlanta Braves 1991–1993*, 1995–1999, 20017 of 9 New York Yankees 1996, 1998–2001, 2003–20045 of 6 Baltimore Orioles 1969–1971, 1973–19745 of 6 Pittsburgh Pirates 1970–1972, 1974–19755 of 6 New York Yankees 1976–1978, 1980–19815 of 6 Los Angeles Dodgers 2016–2018, 2020–20215 of 7 Cincinnati Reds 1970, 1972–1973, 1975–19765 of 7 St. Louis Cardinals 2000, 2002, 2004–20064 of 5 Kansas City Royals 1976–1978, 19804 of 5 Philadelphia Phillies 1976–1978, 19804 of 5 Oakland Athletics 1988–1990, 19924 of 5 Toronto Blue Jays 1989, 1991–19933 of 4 Cleveland Indians 1995, 1997–19983 of 4 New York Yankees 2009–2010, 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 14 consecutive appearances, while the Astros and Braves saw respective streaks of eight and seven end in 2025. Five postseason appearances in a row have been achieved an additional eight times, four in a row an additional nine times, three in a row an additional thirty times, and back-to-back postseasons an additional fifty-three 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), 10 of 12 postseasons from 2015 to 2026, and 7 of 8 postseasons twice, from 1936 to 1943 (see pennant near-streaks above). The Astros have appeared in 10 of 12 postseasons, from 2015 to 2026. In addition, the Brewers (2018 to 2026) have appeared in 8 of 9 postseasons, while six 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, twelve since 2022). The Astros, who have reached the postseason eight straight times from 2017 to 2024, are the only team to ever win a postseason series in seven straight seasons.
Bold indicates a current streak.