Year Team League Wins 1916 NYG ---NL ----26* 1935 ChC ---NL ----21 2002 Oak. ---AL ----20 1906 ChW ---AL ----19* 1947 NYY ---AL ----19 1953 NYY ---AL ----18 1904 NYG ---NL ----18 1912 WAS ---AL ----17 1931 Phil---AL ----17 1907 NYG ---NL ----17 1916 NYG ---NL ----17 * Had a tie game during their winning streak Here's another list from the start of Major League Baseball: The longest winning streaks in major league baseball: 26 games 1916 New York Giants* 21 games 1880 Chicago Cubs* 1935 Chicago Cubs 20 games 1884 Providence Grays 2002 Oakland Athletics 19 games 1906 Chicago White Sox* 1947 New York Yankees 18 games 1885 Chicago Cubs 1891 Boston Braves* 1894 Baltimore Orioles 1904 New York Giants 1953 New York Yankees 17 games 1897 Boston Braves 1907 New York Giants 1912 Washington Senators 1916 New York Giants 1931 Philadelphia Athletics *includes one tie game Longest Win Streaks: # 26 -- 1916 New York Giants (1 tie) # 21 -- 1880 Chicago Cubs (1 tie) # 21 -- 1935 Chicago Cubs # 20 -- 1884 Providence # 20 -- 2002 Oakland Athletics # 19 -- 1906 Chicago White Sox (1 tie) # 19 -- 1947 New York Yankees # 18 -- 1885 Chicago Cubs # 18 -- 1891 Boston Braves (1 tie) # 18 -- 1894 Baltimore Orioles # 18 -- 1904 New York Giants # 18 -- 1953 New York Yankees # 17 -- 1897 Boston Braves # 17 -- 1907 New York Giants # 17 -- 1912 Washington Senators # 17 -- 1916 New York Giants # 17 -- 1931 Philadelphia Athletics # 16 -- 1887 Philadelphia Phillies (1 tie) # 16 -- 1890 Philadelphia Phillies # 16 -- 1892 Philadelphia Phillies # 16 -- 1909 Pittsburgh Pirates # 16 -- 1912 New York Giants # 16 -- 1926 New York Yankees # 16 -- 1951 New York Giants # 16 -- 1977 Kansas City Royals # 15 -- 1886 Detroit (NL) # 15 -- 1903 Pittsburgh Pirates # 15 -- 1906 New York Highlanders # 15 -- 1913 Philadelphia Athletics # 15 -- 1924 Brooklyn Dodgers # 15 -- 1936 Chicago Cubs # 15 -- 1936 New York Giants # 15 -- 1946 Boston Red Sox # 15 -- 1960 New York Yankees # 15 -- 1991 Minnesota Twins # 15 -- 2000 Atlanta Braves # 15 -- 2001 Seattle Mariners