MLB : Streaks above .500

All time
  1 New York Yankees         39 years - 1926..1964
  2 New York Yankees         25 years - 1993..2017
  3 Baltimore Orioles        18 years - 1968..1985
  4 Chicago White Sox        17 years - 1951..1967
  5 Boston Red Sox           16 years - 1967..1982
  6 Atlanta Braves           15 years - 1991..2005
  6 St. Louis Cardinals      15 years - 1939..1953
  8 Atlanta Braves           14 years - 1953..1966
  8 Boston Red Sox           14 years - 1998..2011
  8 Chicago Cubs             14 years - 1926..1939
  8 San Francisco Giants     14 years - 1958..1971
 12 Los Angeles Dodgers      13 years - 1945..1957
 12 Pittsburgh Pirates       13 years - 1918..1930
 14 Chicago Cubs             12 years - 1903..1914
 14 San Francisco Giants     12 years - 1903..1914
 16 Detroit Tigers           11 years - 1978..1988
 16 Pittsburgh Pirates       11 years - 1903..1913
 16 Toronto Blue Jays        11 years - 1983..1993
 19 Boston Red Sox           10 years - 1909..1918
 19 Cincinnati Reds          10 years - 1972..1981
 19 Cleveland Indians        10 years - 1947..1956
 19 Los Angeles Dodgers      10 years - 1969..1978
 19 Philadelphia Phillies    10 years - 1975..1984
 19 Philadelphia Phillies    10 years - 2003..2012
 19 San Francisco Giants     10 years - 1916..1925
 19 St. Louis Cardinals      10 years - 2008..2017




Current
  1 New York Yankees         25 years - 1993..2017
  2 St. Louis Cardinals      10 years - 2008..2017
  3 Los Angeles Dodgers       7 years - 2011..2017
  4 Washington Nationals      6 years - 2012..2017
  5 Cleveland Indians         5 years - 2013..2017
  6 Chicago Cubs              3 years - 2015..2017
  6 Houston Astros            3 years - 2015..2017
  8 Boston Red Sox            2 years - 2016..2017
  9 Arizona Diamondbacks      1 year  - 2017      
  9 Colorado Rockies          1 year  - 2017      
  9 Milwaukee Brewers         1 year  - 2017      
  9 Minnesota Twins           1 year  - 2017