Consecutive World Series wins
                              Seasons
  5  New York Yankees        1949-1953 
  4  New York Yankees        1936-1939 
  3  New York Yankees        1998-2000 
  3  Oakland Athletics       1972-1974 
  2  Toronto Blue Jays       1992-1993 
  2  New York Yankees        1977-1978 
  2  Cincinnati Reds         1975-1976 
  2  New York Yankees        1961-1962 
  2  Philadelphia Athletics  1929-1930 
  2  New York Yankees        1927-1928 
  2  New York Giants         1921-1922 
  2  Boston Red Sox          1915-1916 
  2  Philadelphia Athletics  1910-1911 
  2  Chicago Cubs            1907-1908 

Consecutive World Series appearances
                              Seasons
  5  New York Yankees        1960-1964 
  5  New York Yankees        1949-1953 
  4  New York Yankees        1998-2001 
  4  New York Yankees        1955-1958 
  4  New York Yankees        1936-1939 
  4  New York Giants         1921-1924 
  3  Oakland Athletics       1988-1990 
  3  New York Yankees        1976-1978 
  3  Oakland Athletics       1972-1974 
  3  Baltimore Orioles       1969-1971 
  3  St. Louis Cardinals     1942-1944 
  3  New York Yankees        1941-1943 
  3  Philadelphia Athletics  1929-1931 
  3  New York Yankees        1921-1923 
  3  New York Giants         1911-1913 
  3  Detroit Tigers          1907-1909 
  3  Chicago Cubs            1906-1908 
  2  Los Angeles Dodgers     2017-2018 
  2  Kansas City Royals      2014-2015 
  2  Texas Rangers           2010-2011 
  2  Philadelphia Phillies   2008-2009 
  2  Atlanta Braves          1995-1996 
  2  Toronto Blue Jays       1992-1993 
  2  Atlanta Braves          1991-1992 
  2  Los Angeles Dodgers     1977-1978 
  2  Cincinnati Reds         1975-1976 
  2  St. Louis Cardinals     1967-1968 
  2  Los Angeles Dodgers     1965-1966 
  2  Milwaukee Braves        1957-1958 
  2  Brooklyn Dodgers        1955-1956 
  2  Brooklyn Dodgers        1952-1953 
  2  Cincinnati Reds         1939-1940 
  2  New York Giants         1936-1937 
  2  Detroit Tigers          1934-1935 
  2  St. Louis Cardinals     1930-1931 
  2  New York Yankees        1927-1928 
  2  Washington Senators     1924-1925 
  2  Boston Red Sox          1915-1916 
  2  Philadelphia Athletics  1913-1914 
  2  Philadelphia Athletics  1910-1911