Progressive Leaders & Records for Earned Run Average

Table
Year Career ERA   Single-Season ERA   ActiveERA   Yearly ERA
1871 George Zettlein 2.73 George Zettlein 2.73
1872 Cherokee Fisher 1.80 Cherokee Fisher 1.80
1873 Al Spalding+ 2.67 Cherokee Fisher 1.80 Al Spalding+ 2.67 Cherokee Fisher 1.81
1874 Al Spalding+ 2.41 Dick McBride 1.64 Al Spalding+ 2.41 Dick McBride 1.64
1875 Al Spalding+ 2.21 Pud Galvin+ 1.16 Al Spalding+ 2.21 Pud Galvin+ 1.16

1876 George Bradley 1.66 George Bradley 1.23 George Bradley 1.66 George Bradley 1.23
1877 Tommy Bond 1.85 George Bradley 1.23 Tommy Bond 1.85 Tommy Bond 2.11
1878 Jim Devlin 1.90 George Bradley 1.23 Tommy Bond 1.90 John Ward+ 1.51
1879 Jim Devlin 1.90 George Bradley 1.23 Tommy Bond 1.91 Tommy Bond 1.96
1880 John Ward+ 1.85 Tim Keefe+ 0.86 John Ward+ 1.85 Tim Keefe+ 0.86
1881 Jim Devlin 1.90 Tim Keefe+ 0.86 John Ward+ 1.90 Stump Weidman 1.80
1882 Jim Devlin 1.90 Tim Keefe+ 0.86 Will White 1.92 Denny Driscoll 1.21
1883 Jim Devlin 1.90 Tim Keefe+ 0.86 Will White 1.95 Jim McCormick 1.84
1884 Jim Devlin 1.90 Tim Keefe+ 0.86 Old Hoss Radbourn+ 1.91 Old Hoss Radbourn+ 1.38
1885 Jim Devlin 1.90 Tim Keefe+ 0.86 Old Hoss Radbourn+ 1.96 Tim Keefe+ 1.58
1886 Jim Devlin 1.90 Tim Keefe+ 0.86 Old Hoss Radbourn+ 2.13 Henry Boyle 1.76
1887 Jim Devlin 1.90 Tim Keefe+ 0.86 Larry Corcoran 2.36 Dan Casey 2.86
1888 Jim Devlin 1.90 Tim Keefe+ 0.86 Tim Keefe+ 2.39 Silver King 1.63
1889 Jim Devlin 1.90 Tim Keefe+ 0.86 Tim Keefe+ 2.47 Jack Stivetts 2.25
1890 Jim Devlin 1.90 Tim Keefe+ 0.86 Tim Keefe+ 2.52 Billy Rhines 1.95
1891 Jim Devlin 1.90 Tim Keefe+ 0.86 Tim Keefe+ 2.58 John Ewing 2.27
1892 Jim Devlin 1.90 Tim Keefe+ 0.86 Kid Nichols+ 2.49 Cy Young+ 1.93
1893 Jim Devlin 1.90 Tim Keefe+ 0.86 Tim Keefe+ 2.63 Ted Breitenstein 3.18
1894 Jim Devlin 1.90 Tim Keefe+ 0.86 John Clarkson+ 2.81 Amos Rusie+ 2.78
1895 Jim Devlin 1.90 Tim Keefe+ 0.86 Silver King 3.05 Al Maul 2.45
1896 Jim Devlin 1.90 Tim Keefe+ 0.86 Amos Rusie+ 3.09 Billy Rhines 2.45
1897 Jim Devlin 1.90 Tim Keefe+ 0.86 Amos Rusie+ 3.04 Amos Rusie+ 2.54
1898 Jim Devlin 1.90 Tim Keefe+ 0.86 Kid Nichols+ 2.97 Clark Griffith+ 1.88
1899 Jim Devlin 1.90 Tim Keefe+ 0.86 Kid Nichols+ 2.97 Vic Willis+ 2.50
1900 Jim Devlin 1.90 Tim Keefe+ 0.86 Kid Nichols+ 2.98 Rube Waddell+ 2.37
1901 Jim Devlin 1.90 Tim Keefe+ 0.86 Vic Willis+ 2.88 Cy Young+ 1.62
1902 Jim Devlin 1.90 Tim Keefe+ 0.86 Deacon Phillippe 2.59 Jack Taylor 1.29
1903 Jim Devlin 1.90 Tim Keefe+ 0.86 Christy Mathewson+ 2.36 Earl Moore 1.74
1904 Jim Devlin 1.90 Tim Keefe+ 0.86 Christy Mathewson+ 2.28 Addie Joss+ 1.59
1905 Jim Devlin 1.90 Tim Keefe+ 0.86 Christy Mathewson+ 2.08 Christy Mathewson+ 1.28
1906 Jim Devlin 1.90 Tim Keefe+ 0.86 Addie Joss+ 2.08 Mordecai Brown+ 1.04
1907 Mordecai Brown+ 1.77 Tim Keefe+ 0.86 Mordecai Brown+ 1.77 Jack Pfiester 1.15
1908 Mordecai Brown+ 1.70 Tim Keefe+ 0.86 Mordecai Brown+ 1.70 Addie Joss+ 1.16
1909 Mordecai Brown+ 1.63 Tim Keefe+ 0.86 Mordecai Brown+ 1.63 Christy Mathewson+ 1.14
1910 Ed Walsh+ 1.61 Tim Keefe+ 0.86 Ed Walsh+ 1.61 Ed Walsh+ 1.27
1911 Ed Walsh+ 1.70 Tim Keefe+ 0.86 Ed Walsh+ 1.70 Vean Gregg 1.80
1912 Walter Johnson+ 1.69 Tim Keefe+ 0.86 Walter Johnson+ 1.69 Walter Johnson+ 1.39
1913 Walter Johnson+ 1.60 Tim Keefe+ 0.86 Walter Johnson+ 1.60 Walter Johnson+ 1.14
1914 Walter Johnson+ 1.62 Tim Keefe+ 0.86 Walter Johnson+ 1.62 Dutch Leonard 0.96
1915 Walter Johnson+ 1.61 Tim Keefe+ 0.86 Walter Johnson+ 1.61 Pete Alexander+ 1.22
1916 Walter Johnson+ 1.64 Tim Keefe+ 0.86 Walter Johnson+ 1.64 Pete Alexander+ 1.55
1917 Walter Johnson+ 1.70 Tim Keefe+ 0.86 Walter Johnson+ 1.70 Fred Anderson 1.44
1918 Walter Johnson+ 1.66 Tim Keefe+ 0.86 Walter Johnson+ 1.66 Walter Johnson+ 1.27
1919 Walter Johnson+ 1.65 Tim Keefe+ 0.86 Walter Johnson+ 1.65 Walter Johnson+ 1.49
1920 Walter Johnson+ 1.70 Tim Keefe+ 0.86 Walter Johnson+ 1.70 Pete Alexander+ 1.91
1921 Walter Johnson+ 1.80 Tim Keefe+ 0.86 Walter Johnson+ 1.80 Red Faber+ 2.48
1922 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 1.87 Phil Douglas 2.63
1923 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 1.96 Dolf Luque 1.93
1924 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 2.00 Dazzy Vance+ 2.16
1925 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 2.04 Dolf Luque 2.63
1926 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 2.11 Lefty Grove+ 2.51
1927 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Walter Johnson+ 2.17 Wilcy Moore 2.28
1928 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.25 Dazzy Vance+ 2.09
1929 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.25 Lefty Grove+ 2.81
1930 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.26 Lefty Grove+ 2.54
1931 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.26 Lefty Grove+ 2.06
1932 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.26 Lon Warneke 2.37
1933 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Babe Ruth+ 2.28 Carl Hubbell+ 1.66
1934 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.73 Carl Hubbell+ 2.30
1935 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Lon Warneke 2.72 Cy Blanton 2.58
1936 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.74 Carl Hubbell+ 2.31
1937 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.79 Lefty Gomez+ 2.33
1938 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.81 Bill Lee 2.66
1939 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.80 Bucky Walters 2.29
1940 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.86 Bucky Walters 2.48
1941 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.89 Elmer Riddle 2.24
1942 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Carl Hubbell+ 2.94 Mort Cooper 1.78
1943 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mort Cooper 2.86 Spud Chandler 1.64
1944 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mort Cooper 2.79 Dizzy Trout 2.12
1945 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tiny Bonham 2.64 Hal Newhouser+ 1.81
1946 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Max Lanier 2.63 Hal Newhouser+ 1.94
1947 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Max Lanier 2.63 Warren Spahn+ 2.33
1948 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Harry Brecheen 2.62 Harry Brecheen 2.24
1949 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Max Lanier 2.73 Mike Garcia 2.36
1950 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Max Lanier 2.79 Sal Maglie 2.71
1951 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Max Lanier 2.84 Saul Rogovin 2.78
1952 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Harry Brecheen 2.91 Allie Reynolds 2.06
1953 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Harry Brecheen 2.92 Warren Spahn+ 2.10
1954 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mike Garcia 2.91 Johnny Antonelli 2.30
1955 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Warren Spahn+ 2.98 Billy Pierce 1.97
1956 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.73 Whitey Ford+ 2.47
1957 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.71 Bobby Shantz 2.45
1958 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.60 Whitey Ford+ 2.01
1959 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.66 Hoyt Wilhelm+ 2.19
1960 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.70 Frank Baumann 2.67
1961 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Whitey Ford+ 2.77 Dick Donovan 2.40
1962 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.75 Hank Aguirre 2.21
1963 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.74 Sandy Koufax+ 1.88
1964 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.68 Dean Chance 1.65
1965 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.61 Sandy Koufax+ 2.04
1966 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.57 Sandy Koufax+ 1.73
1967 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Gary Peters 2.50 Phil Niekro+ 1.87
1968 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.47 Bob Gibson+ 1.12
1969 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Hoyt Wilhelm+ 2.46 Juan Marichal+ 2.10
1970 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.49 Diego Segui 2.56
1971 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.34 Tom Seaver+ 1.76
1972 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.43 Luis Tiant 1.91
1973 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.38 Tom Seaver+ 2.08
1974 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.47 Buzz Capra 2.28
1975 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.46 Jim Palmer+ 2.09
1976 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.47 Mark Fidrych 2.34
1977 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.48 John Candelaria 2.34
1978 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.51 Ron Guidry 1.74
1979 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.55 J.R. Richard 2.71
1980 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.60 Don Sutton+ 2.20
1981 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.60 Nolan Ryan+ 1.69
1982 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.68 Steve Rogers 2.40
1983 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Tom Seaver+ 2.73 Atlee Hammaker 2.25
1984 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Kent Tekulve 2.64 Alejandro Pena 2.48
1985 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Kent Tekulve 2.70 Dwight Gooden 1.53
1986 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Kent Tekulve 2.69 Mike Scott 2.22
1987 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Kent Tekulve 2.72 Jimmy Key 2.76
1988 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Dwight Gooden 2.62 Joe Magrane 2.18
1989 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Dwight Gooden 2.64 Bret Saberhagen 2.16
1990 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Orel Hershiser 2.71 Roger Clemens 1.93
1991 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Orel Hershiser 2.77 Dennis Martinez 2.39
1992 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Roger Clemens 2.80 Bill Swift 2.08
1993 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Lee Smith 2.91 Greg Maddux+ 2.36
1994 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Lee Smith 2.93 Greg Maddux+ 1.56
1995 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Greg Maddux+ 2.88 Greg Maddux+ 1.63
1996 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Greg Maddux+ 2.86 Kevin Brown 1.89
1997 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Greg Maddux+ 2.81 Pedro Martinez+ 1.90
1998 Ed Walsh+ 1.82 Tim Keefe+ 0.86 John Franco 2.64 Greg Maddux+ 2.22
1999 Ed Walsh+ 1.82 Tim Keefe+ 0.86 John Franco 2.64 Pedro Martinez+ 2.07
2000 Ed Walsh+ 1.82 Tim Keefe+ 0.86 John Franco 2.68 Pedro Martinez+ 1.74
2001 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.66 Randy Johnson+ 2.49
2002 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.62 Pedro Martinez+ 2.26
2003 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.58 Pedro Martinez+ 2.22
2004 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.71 Jake Peavy 2.27
2005 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.72 Roger Clemens 1.87
2006 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.81 Johan Santana 2.77
2007 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Pedro Martinez+ 2.80 Jake Peavy 2.54
2008 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.29 Johan Santana 2.53
2009 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.25 Zack Greinke 2.16
2010 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.23 Felix Hernandez 2.27
2011 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.21 Clayton Kershaw 2.28
2012 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.21 Clayton Kershaw 2.53
2013 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Mariano Rivera 2.21 Clayton Kershaw 1.83
2014 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Clayton Kershaw 2.48 Clayton Kershaw 1.77
2015 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Clayton Kershaw 2.43 Zack Greinke 1.66
2016 Ed Walsh+ 1.82 Tim Keefe+ 0.86 Clayton Kershaw 2.37 Kyle Hendricks 2.13
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