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Progressive ERA
Leaderboard
 
This table is a snapshot of the career, single-season, active, and yearly leaders at the end of each season.
* - Indicates Hall of Fame
Bold - Indicates active player
Year    Career ERA    Single-Season ERA    Active ERA    Yearly ERA 
1930      George Winn 2.668      George Winn 2.668 
1931      George Winn 2.668      Dizzy Dean * 2.734 
1932    Garland Buckeye 3.277    George Winn 2.668    Garland Buckeye 3.277    Garland Buckeye 3.009 
1933    Ed Baecht 3.220    George Winn 2.668    Ed Baecht 3.220    Hub Pruett 3.028 
1934    Hub Pruett 3.212    George Winn 2.668    Hub Pruett 3.212    Hub Pruett 2.954 
1935    Hub Pruett 3.253    George Winn 2.668    Hub Pruett 3.253    Ed Baecht 2.886 
1936    Hub Pruett 3.354    George Winn 2.668    Hub Pruett 3.354    Paul Dean * 3.369 
1937    Hub Pruett 3.307    George Winn 2.668    Hub Pruett 3.307    Paul Dean * 2.760 
1938    Paul Dean * 3.287    George Winn 2.668    Paul Dean * 3.287    Vito Tamulis 2.965 
1939    Paul Dean * 3.247    George Winn 2.668    Paul Dean * 3.247    Newt Kimball 2.681 
1940    Paul Dean * 3.269    George Winn 2.668    Paul Dean * 3.269    Johnny Vander Meer 2.716 
1941    Johnny Vander Meer 3.143    George Winn 2.668    Johnny Vander Meer 3.143    Cliff Melton * 3.139 
1942    Johnny Vander Meer 3.295    George Winn 2.668    Johnny Vander Meer 3.295    Paul Dean * 2.957 
1943    Johnny Vander Meer 3.330    George Winn 2.668    Johnny Vander Meer 3.330    Dizzy Dean * 2.846 
1944    Earl Johnson * 3.269    George Winn 2.668    Earl Johnson * 3.269    Earl Johnson * 2.795 
1945    Earl Johnson * 3.305    George Winn 2.668    Earl Johnson * 3.305    Ralph Winegarner 2.815 
1946    Earl Johnson * 3.163    Earl Johnson * 2.445    Earl Johnson * 3.163    Earl Johnson * 2.445 
1947    Warren Spahn * 2.947    Earl Johnson * 2.445    Warren Spahn * 2.947    Earl Johnson * 2.598 
1948    Warren Spahn * 2.801    Warren Spahn * 2.355    Warren Spahn * 2.801    Warren Spahn * 2.355 
1949    Warren Spahn * 2.657    Warren Spahn * 2.056    Warren Spahn * 2.657    Warren Spahn * 2.056 
1950    Warren Spahn * 2.618    Warren Spahn * 2.056    Warren Spahn * 2.618    Warren Spahn * 2.415 
1951    Warren Spahn * 2.553    Warren Spahn * 2.056    Warren Spahn * 2.553    Warren Spahn * 2.162 
1952    Warren Spahn * 2.537    Warren Spahn * 2.056    Warren Spahn * 2.537    Warren Spahn * 2.426 
1953    Warren Spahn * 2.485    Chuck Stobbs * 1.908    Warren Spahn * 2.485    Chuck Stobbs * 1.908 
1954    Warren Spahn * 2.521    Chuck Stobbs * 1.908    Warren Spahn * 2.521    Chuck Stobbs * 2.384 
1955    Warren Spahn * 2.482    Chuck Stobbs * 1.784    Warren Spahn * 2.482    Chuck Stobbs * 1.784 
1956    Warren Spahn * 2.445    Chuck Stobbs * 1.784    Warren Spahn * 2.445    Warren Spahn * 2.032 
1957    Warren Spahn * 2.438    Chuck Stobbs * 1.784    Warren Spahn * 2.438    Gene Conley * 2.108 
1958    Warren Spahn * 2.465    Chuck Stobbs * 1.784    Warren Spahn * 2.465    Dean Stone 2.413 
1959    Warren Spahn * 2.480    Chuck Stobbs * 1.784    Warren Spahn * 2.480    Gene Conley * 1.800 
1960    Warren Spahn * 2.530    Chuck Stobbs * 1.663    Warren Spahn * 2.530    Chuck Stobbs * 1.663 
1961    Chuck Stobbs * 2.504    Chuck Stobbs * 1.663    Chuck Stobbs * 2.504    Gene Conley * 2.008 
1962    Chuck Stobbs * 2.499    Chuck Stobbs * 1.663    Chuck Stobbs * 2.499    Gene Conley * 2.147 
1963    Chuck Stobbs * 2.508    Chuck Stobbs * 1.663    Chuck Stobbs * 2.508    Gene Conley * 1.992 
1964    Chuck Stobbs * 2.502    Chuck Stobbs * 1.663    Chuck Stobbs * 2.502    Charlie Beamon 2.299 
1965    Chuck Stobbs * 2.496    Chuck Stobbs * 1.663    Chuck Stobbs * 2.496    Juan Marichal * 2.034 
1966    Chuck Stobbs * 2.520    Chuck Stobbs * 1.663    Chuck Stobbs * 2.520    Tom Qualters 2.027 
1967    Warren Spahn * 2.530    Chuck Stobbs * 1.663    Chuck Stobbs * 2.531    Jim Brewer * 2.072 
1968    Juan Marichal * 2.484    Chuck Stobbs * 1.663    Juan Marichal * 2.484    Hal Reniff 2.077 
1969    Juan Marichal * 2.515    Chuck Stobbs * 1.663    Juan Marichal * 2.515    Tom Qualters 2.254 
1970    Juan Marichal * 2.495    Chuck Stobbs * 1.663    Juan Marichal * 2.495    Juan Marichal * 2.240 
1971    Juan Marichal * 2.418    Juan Marichal * 1.449    Juan Marichal * 2.418    Juan Marichal * 1.449 
1972    Juan Marichal * 2.417    Juan Marichal * 1.449    Juan Marichal * 2.417    John Hiller 1.575 
1973    Juan Marichal * 2.416    Juan Marichal * 1.449    Juan Marichal * 2.416    John Hiller 1.798 
1974    Juan Marichal * 2.416    Juan Marichal * 1.449    John Hiller 2.710    John Hiller 2.496 
1975    Juan Marichal * 2.416    John Hiller 1.431    John Hiller 2.585    John Hiller 1.431 
1976    Juan Marichal * 2.416    John Hiller 1.431    John Hiller 2.567    John Hiller 2.378 
1977    Juan Marichal * 2.416    John Hiller 1.431    John Hiller 2.589    Bill Butler 2.420 
1978    Juan Marichal * 2.416    John Hiller 1.431    John Hiller 2.638    Rick Reuschel 2.591 
1979    Juan Marichal * 2.416    John Hiller 1.431    John Hiller 2.634    Steve Carlton * 2.381 
1980    Juan Marichal * 2.416    John Hiller 1.431    John Gelnar 3.091    Greg Minton 2.393 
1981    Juan Marichal * 2.416    John Hiller 1.431    John Gelnar 3.099    Bill Slayback 2.202 
1982    Juan Marichal * 2.416    John Hiller 1.431    Lance Rautzhan 2.754    Lance Rautzhan 2.077 
1983    Juan Marichal * 2.416    John Hiller 1.431    Lance Rautzhan 2.815    John Denny 1.926 
1984    Juan Marichal * 2.416    John Hiller 1.431    Lance Rautzhan 2.926    Rich Bordi 2.032 
1985    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.721    Lance Rautzhan 2.307 
1986    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.746    Lance Rautzhan 2.177 
1987    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.692    Duane Ward 2.316 
1988    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.624    Rich Bordi 2.253 
1989    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.561    Dwight Gooden 1.972 
1990    Juan Marichal * 2.416    John Hiller 1.431    Rich Bordi 2.553    Randy Johnson 2.231 
 
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