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Major League Baseball recognizes earned run average champions in the American League and National League each season.

American LeagueEdit

Year Player Team(s) ERA
1901 Template:Player Boston Americans 1.62
1902 Template:Player Detroit Tigers 1.91
1903 Template:Player Cleveland Naps 1.74
1904 Template:Player Cleveland Naps 1.59
1905 Template:Player Philadelphia Athletics 1.48
1906 Template:Player Chicago White Sox 1.52
1907 Template:Player Chicago White Sox 1.60
1908 Template:Player Cleveland Naps 1.16
1909 Template:Player Philadelphia Athletics 1.39
1910 Template:Player Chicago White Sox 1.27
1911 Template:Player Cleveland Naps 1.80
1912 Template:Player Washington Senators 1.39
1913 Template:Player Washington Senators 1.14
1914 Template:Player Boston Red Sox 0.96
1915 Template:Player Boston Red Sox 1.49
1916 Template:Player Boston Red Sox 1.75
1917 Template:Player Chicago White Sox 1.53
1918 Template:Player Washington Senators 1.27
1919 Template:Player Washington Senators 1.49
1920 Template:Player New York Yankees 2.45
1921 Template:Player Chicago White Sox 2.48
1922 Template:Player Chicago White Sox 2.81
1923 Template:Player Cleveland Indians 2.76
1924 Template:Player Washington Senators 2.72
1925 Template:Player Washington Senators 2.84
1926 Template:Player Philadelphia Athletics 2.51
1927 Template:Player New York Yankees 2.28
1928 Template:Player Washington Senators 2.51
1929 Template:Player Philadelphia Athletics 2.81
1930 Template:Player Philadelphia Athletics 2.54
1931 Template:Player Philadelphia Athletics 2.06
1932 Template:Player Philadelphia Athletics 2.84
1933 Template:Player Cleveland Indians 2.95
1934 Template:Player New York Yankees 2.33
1935 Template:Player Boston Red Sox 2.70
1936 Template:Player Boston Red Sox 2.81
1937 Template:Player New York Yankees 2.33
1938 Template:Player Boston Red Sox 3.08
1939 Template:Player Boston Red Sox 2.54
1940 Template:Player Cleveland Indians 2.61
1941 Template:Player Chicago White Sox 2.37
1942 Template:Player Chicago White Sox 2.10
1943 Template:Player New York Yankees 1.64
1944 Template:Player Detroit Tigers 2.12
1945 Template:Player Detroit Tigers 1.81
1946 Template:Player Detroit Tigers 1.94
1947 Template:Player Chicago White Sox 2.42
1948 Template:Player Cleveland Indians 2.43
1949 Template:Player Cleveland Indians 2.36
1950 Template:Player Cleveland Indians 3.20
1951 Template:Player Chicago White Sox
Detroit Tigers
2.78
1952 Template:Player New York Yankees 2.06
1953 Template:Player New York Yankees 2.42
1954 Template:Player Cleveland Indians 2.64
1955 Template:Player Chicago White Sox 1.97
1956 Template:Player New York Yankees 2.47
1957 Template:Player New York Yankees 2.45
1958 Template:Player New York Yankees 2.01
1959 Template:Player Baltimore Orioles 2.19
1960 Template:Player Chicago White Sox 2.67
1961 Template:Player Washington Senators 2.40
1962 Template:Player Detroit Tigers 2.21
1963 Template:Player Chicago White Sox 2.33
1964 Template:Player Los Angeles Angels 1.65
1965 Template:Player Cleveland Indians 2.18
1966 Template:Player Chicago White Sox 1.98
1967 Template:Player Chicago White Sox 2.06
1968 Template:Player Cleveland Indians 1.60
1969 Template:Player Washington Senators 2.19
1970 Template:Player Oakland Athletics 2.56
1971 Template:Player Oakland Athletics 1.82
1972 Template:Player Boston Red Sox 1.91
1973 Template:Player Baltimore Orioles 2.40
1974 Template:Player Oakland Athletics 2.49
1975 Template:Player Baltimore Orioles 2.09
1976 Template:Player Detroit Tigers 2.34
1977 Template:Player California Angels 2.54
1978 Template:Player New York Yankees 1.74
1979 Template:Player New York Yankees 2.78
1980 Template:Player New York Yankees 2.46
1981 Template:Player Baltimore Orioles 2.32
1982 Template:Player Cleveland Indians 2.96
1983 Template:Player Texas Rangers 2.42
1984 Template:Player Baltimore Orioles 2.79
1985 Template:Player Toronto Blue Jays 2.48
1986 Template:Player Boston Red Sox 2.48
1987 Template:Player Toronto Blue Jays 2.76
1988 Template:Player Minnesota Twins 2.45
1989 Template:Player Kansas City Royals 2.16
1990 Template:Player Boston Red Sox 1.93
1991 Template:Player Boston Red Sox 2.62
1992 Template:Player Boston Red Sox 2.41
1993 Template:Player Kansas City Royals 2.56
1994 Template:Player Oakland Athletics 2.65
1995 Template:Player Seattle Mariners 2.48
1996 Template:Player Toronto Blue Jays 2.93
1997 Template:Player Toronto Blue Jays 2.05
1998 Template:Player Toronto Blue Jays 2.65
1999 Template:Player Boston Red Sox 2.07
2000 Template:Player Boston Red Sox 1.74
2001 Template:Player Seattle Mariners 3.05
2002 Template:Player Boston Red Sox 2.26
2003 Template:Player Boston Red Sox 2.22
2004 Template:Player Minnesota Twins 2.61
2005 Template:Player Cleveland Indians 2.86
2006 Template:Player Minnesota Twins 2.77
2007 Template:Player Los Angeles Angels 3.01
2008 Template:Player Cleveland Indians 2.54
2009 Template:Player Kansas City Royals 2.16
2010 Template:Player Seattle Mariners 2.27
2011 Template:Player Detroit Tigers 2.40
2012 Template:Player Tampa Bay Rays 2.56

National LeagueEdit

Year Player Team(s) ERA
1876 Template:Player St. Louis Brown Stockings 1.23
1877 Template:Player Boston Red Caps 2.11
1878 Template:Player Providence Grays 1.51
1879 Template:Player Boston Red Caps 1.96
1880 Template:Player Troy Trojans 0.86
1881 Template:Player Detroit Wolverines 1.80
1882 Template:Player Chicago White Stockings 1.95
1883 Template:Player Cleveland Blues 1.84
1884 Template:Player Providence Grays 1.38
1885 Template:Player New York Giants 1.58
1886 Template:Player St. Louis Maroons 1.76
1887 Template:Player Philadelphia Quakers 2.86
1888 Template:Player New York Giants 1.74
1889 Template:Player Boston Beaneaters 2.73
1890 Template:Player Cincinnati Reds 1.95
1891 Template:Player New York Giants 2.27
1892 Template:Player Cleveland Spiders 1.93
1893 Template:Player St. Louis Browns 3.18
1894 Template:Player New York Giants 2.78
1895 Template:Player Washington Senators 2.45
1896 Template:Player Cincinnati Reds 2.45
1897 Template:Player New York Giants 2.54
1898 Template:Player Chicago Orphans 1.88
1899 Template:Player Boston Beaneaters 2.50
1900 Template:Player Pittsburgh Pirates 2.37
1901 Template:Player Pittsburgh Pirates 2.18
1902 Template:Player Chicago Orphans 1.33
1903 Template:Player Pittsburgh Pirates 2.06
1904 Template:Player New York Giants 1.61
1905 Template:Player New York Giants 1.28
1906 Template:Player Chicago Cubs 1.04
1907 Template:Player Chicago Cubs 1.15
1908 Template:Player New York Giants 1.43
1909 Template:Player New York Giants 1.14
1910 Template:Player Chicago Cubs 1.80
1911 Template:Player New York Giants 1.99
1912 Template:Player New York Giants 1.96
1913 Template:Player New York Giants 2.06
1914 Template:Player St. Louis Cardinals 1.72
1915 Template:Player Philadelphia Phillies 1.22
1916 Template:Player Philadelphia Phillies 1.55
1917 Template:Player New York Giants 1.44
1918 Template:Player Chicago Cubs 1.74
1919 Template:Player Chicago Cubs 1.72
1920 Template:Player Chicago Cubs 1.91
1921 Template:Player St. Louis Cardinals 2.59
1922 Template:Player New York Giants 2.63
1923 Template:Player Cincinnati Reds 1.93
1924 Template:Player Brooklyn Robins 2.16
1925 Template:Player Cincinnati Reds 2.63
1926 Template:Player Pittsburgh Pirates 2.61
1927 Template:Player Pittsburgh Pirates 2.47
1928 Template:Player Brooklyn Robins 2.09
1929 Template:Player New York Giants 3.09
1930 Template:Player Brooklyn Robins 2.61
1931 Template:Player New York Giants 2.26
1932 Template:Player Chicago Cubs 2.37
1933 Template:Player New York Giants 1.66
1934 Template:Player New York Giants 2.30
1935 Template:Player Pittsburgh Pirates 2.58
1936 Template:Player New York Giants 2.31
1937 Template:Player Boston Bees 2.38
1938 Template:Player Chicago Cubs 2.66
1939 Template:Player Cincinnati Reds 2.29
1940 Template:Player Cincinnati Reds 2.48
1941 Template:Player Cincinnati Reds 2.24
1942 Template:Player St. Louis Cardinals 1.78
1943 Template:Player St. Louis Cardinals 1.90
1944 Template:Player Cincinnati Reds 2.38
1945 Template:Player Chicago Cubs 2.40
1946 Template:Player St. Louis Cardinals 2.10
1947 Template:Player Boston Braves 2.33
1948 Template:Player St. Louis Cardinals 2.24
1949 Template:Player New York Giants 2.50
1950 Template:Player New York Giants 2.71
1951 Template:Player Boston Braves 2.88
1952 Template:Player New York Giants 2.43
1953 Template:Player Milwaukee Braves 2.10
1954 Template:Player New York Giants 2.30
1955 Template:Player Pittsburgh Pirates 2.83
1956 Template:Player Milwaukee Braves 2.70
1957 Template:Player Brooklyn Dodgers 2.66
1958 Template:Player San Francisco Giants 2.47
1959 Template:Player San Francisco Giants 2.83
1960 Template:Player San Francisco Giants 2.70
1961 Template:Player Milwaukee Braves 3.02
1962 Template:Player Los Angeles Dodgers 2.54
1963 Template:Player Los Angeles Dodgers 1.88
1964 Template:Player Los Angeles Dodgers 1.74
1965 Template:Player Los Angeles Dodgers 2.04
1966 Template:Player Los Angeles Dodgers 1.73
1967 Template:Player Atlanta Braves 1.87
1968 Template:Player St. Louis Cardinals 1.12
1969 Template:Player San Francisco Giants 2.10
1970 Template:Player New York Mets 2.82
1971 Template:Player New York Mets 1.76
1972 Template:Player Philadelphia Phillies 1.97
1973 Template:Player New York Mets 2.08
1974 Template:Player Atlanta Braves 2.28
1975 Template:Player San Diego Padres 2.24
1976 Template:Player St. Louis Cardinals 2.52
1977 Template:Player Pittsburgh Pirates 2.34
1978 Template:Player New York Mets 2.43
1979 Template:Player Houston Astros 2.71
1980 Template:Player Los Angeles Dodgers 2.20
1981 Template:Player Houston Astros 1.69
1982 Template:Player Montreal Expos 2.40
1983 Template:Player San Francisco Giants 2.25
1984 Template:Player Los Angeles Dodgers 2.48
1985 Template:Player New York Mets 1.53
1986 Template:Player Houston Astros 2.22
1987 Template:Player Houston Astros 2.76
1988 Template:Player St. Louis Cardinals 2.18
1989 Template:Player San Francisco Giants 2.28
1990 Template:Player Houston Astros 2.21
1991 Template:Player Montreal Expos 2.39
1992 Template:Player San Francisco Giants 2.08
1993 Template:Player Atlanta Braves 2.36
1994 Template:Player Atlanta Braves 1.56
1995 Template:Player Atlanta Braves 1.63
1996 Template:Player Florida Marlins 1.89
1997 Template:Player Montreal Expos 1.90
1998 Template:Player Atlanta Braves 2.22
1999 Template:Player Arizona Diamondbacks 2.48
2000 Template:Player Los Angeles Dodgers 2.58
2001 Template:Player Arizona Diamondbacks 2.49
2002 Template:Player Arizona Diamondbacks 2.32
2003 Template:Player San Francisco Giants 2.34
2004 Template:Player San Diego Padres 2.27
2005 Template:Player Houston Astros 1.87
2006 Template:Player Houston Astros 2.98
2007 Template:Player San Diego Padres 2.54
2008 Template:Player New York Mets 2.53
2009 Template:Player St. Louis Cardinals 2.24
2010 Template:Player Florida Marlins 2.30
2011 Template:Player Los Angeles Dodgers 2.28
2012 Template:Player Los Angeles Dodgers 2.53

American AssociationEdit

Year Player Team(s) ERA
1882 Template:Player Pittsburgh Alleghenys 1.21
1883 Template:Player Cincinnati Red Stockings 2.09
1884 Template:Player Louisville Eclipse 1.80
1885 Template:Player St. Louis Browns 2.07
1886 Template:Player St. Louis Browns 2.11
1887 Template:Player Cincinnati Red Stockings 2.94
1888 Template:Player St. Louis Browns 1.64
1889 Template:Player St. Louis Browns 2.25
1890 Template:Player Louisville Colonels 2.36
1891 Template:Player Cincinnati Kelly's Killers 2.45

Federal LeagueEdit

Year Player Team(s) ERA
1914 Template:Player Chicago Chi-Feds 1.69
1915 Template:Player Newark Pepper 1.91

Player's LeagueEdit

Year Player Team(s) ERA
1890 Template:Player Chicago Pirates 2.69

Union AssociationEdit

Year Player Team(s) ERA
1890 Template:Player Cincinnati Outlaw Reds 1.54

National AssociationEdit

Year Player Team(s) ERA
1871 Template:Player Chicago White Stockings 2.73
1872 Template:Player Boston Red Stockings 1.98
1873 Template:Player Athletic of Philadelphia 1.81
1874 Template:Player New York Mutuals 2.30
1875 Template:Player Boston Red Stockings 1.52

ReferencesEdit

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