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Progressive Winning Pct
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 WPct    Single-Season WPct    Active WPct    Yearly WPct 
1930      Herm Holshouser .7500      Herm Holshouser .7500 
1931      Herm Holshouser .7500      Mike Kircher .6875 
1932    Ray Benge .6226    Clint Brown .8235    Ray Benge .6226    Clint Brown .8235 
1933    Hank Thormahlen .6339    Clint Brown .8235    Hank Thormahlen .6339    Pete Appleton
Bill Swift *		 .7500 
1934    Ed Baecht .6204    Clint Brown .8235    Ed Baecht .6204    Ed Baecht .7500 
1935    Ed Baecht .6203    Clint Brown .8235    Ed Baecht .6203    Johnny Broaca .7241 
1936    Paul Dean * .6796    Clint Brown .8235    Paul Dean * .6796    Cy Moore .7500 
1937    Paul Dean * .7071    Clint Brown .8235    Paul Dean * .7071    Paul Dean * .7838 
1938    Paul Dean * .6941    Clint Brown .8235    Paul Dean * .6941    Vito Tamulis .7586 
1939    Paul Dean * .7033    George Blaeholder .8667    Paul Dean * .7033    George Blaeholder .8667 
1940    Paul Dean * .6983    George Blaeholder .8667    Paul Dean * .6983    Ray Prim .7500 
1941    Paul Dean * .6679    George Blaeholder .8667    Paul Dean * .6679    George Blaeholder .7143 
1942    Paul Dean * .6713    George Blaeholder .8667    Paul Dean * .6713    Ray Prim .7391 
1943    Paul Dean * .6656    George Blaeholder .8667    Paul Dean * .6656    Joe Haynes .7368 
1944    Paul Dean * .6677    George Blaeholder .8667    Paul Dean * .6677    Dave Koslo .8235 
1945    Paul Dean * .6609    George Blaeholder .8667    Paul Dean * .6609    Ralph Winegarner .7778 
1946    Paul Dean * .6526    George Blaeholder .8667    Paul Dean * .6526    Joe Page .8235 
1947    Earl Johnson * .6624    George Blaeholder .8667    Earl Johnson * .6624    Dave Koslo .8182 
1948    Earl Johnson * .6779    George Blaeholder .8667    Earl Johnson * .6779    Earl Johnson * .7879 
1949    Earl Johnson * .6801    George Blaeholder .8667    Earl Johnson * .6801    Warren Spahn * .7941 
1950    Earl Johnson * .6847    George Blaeholder .8667    Earl Johnson * .6847    Bud Byerly .8421 
1951    Chuck Stobbs * .7234    George Blaeholder .8667    Chuck Stobbs * .7234    Chuck Stobbs * .8529 
1952    Chuck Stobbs * .7041    George Blaeholder .8667    Chuck Stobbs * .7041    Bill Wight .7500 
1953    Chuck Stobbs * .7108    George Blaeholder .8667    Chuck Stobbs * .7108    Joe Haynes .8125 
1954    Chuck Stobbs * .7009    George Blaeholder .8667    Chuck Stobbs * .7009    Jack Harshman .7297 
1955    Chuck Stobbs * .7079    George Blaeholder .8667    Chuck Stobbs * .7079    Warren Spahn * .8286 
1956    Chuck Stobbs * .7086    George Blaeholder .8667    Chuck Stobbs * .7086    Bob Friend .7949 
1957    Chuck Stobbs * .7130    Dean Stone .8750    Chuck Stobbs * .7130    Dean Stone .8750 
1958    Dean Stone .7236    Dean Stone .8750    Dean Stone .7236    Dean Stone .8519 
1959    Chuck Stobbs * .7069    Dean Stone .8750    Chuck Stobbs * .7069    Sandy Koufax * .8276 
1960    Chuck Stobbs * .7104    Dean Stone .8750    Chuck Stobbs * .7104    Sandy Koufax * .8519 
1961    Chuck Stobbs * .7137    Dean Stone .8750    Chuck Stobbs * .7137    Gene Conley * .8125 
1962    George Brunet .7451    Dean Stone .8750    George Brunet .7451    Gene Conley * .8182 
1963    George Brunet .7368    Dean Stone .8750    George Brunet .7368    Charlie Beamon .7778 
1964    Chuck Stobbs * .7249    Dean Stone .8750    Chuck Stobbs * .7249    Joe Bonikowski
Jim Brewer *
Chuck Stobbs *		 .7879 
1965    Chuck Stobbs * .7171    Dean Stone .8750    Chuck Stobbs * .7171    Jim O'Toole .8710 
1966    Chuck Stobbs * .7147    Dean Stone .8750    Chuck Stobbs * .7147    Rollie Sheldon .7692 
1967    Chuck Stobbs * .7149    Dean Stone .8750    Chuck Stobbs * .7149    Gary Peters .8276 
1968    Chuck Stobbs * .7117    Seth Morehead .9375    Chuck Stobbs * .7117    Seth Morehead .9375 
1969    Chuck Stobbs * .7117    Seth Morehead .9375    George Brunet .6839    Pat Dobson .8500 
1970    Chuck Stobbs * .7117    Seth Morehead .9375    Don Sutton .6711    Pete Richert .8571 
1971    Chuck Stobbs * .7117    Juan Marichal * .9600    Ramon Hernandez .6893    Juan Marichal * .9600 
1972    Jerry Stephenson .7143    Juan Marichal * .9600    Jerry Stephenson .7143    John Hiller .8696 
1973    Jerry Stephenson .7279    Juan Marichal * .9600    Jerry Stephenson .7279    Hal Reniff .8571 
1974    Jerry Stephenson .7289    Juan Marichal * .9600    Jerry Stephenson .7289    Ramon Hernandez .7895 
1975    Jerry Stephenson .7216    Juan Marichal * .9600    Jerry Stephenson .7216    John Hiller .8400 
1976    Jerry Stephenson .7150    Juan Marichal * .9600    Jerry Stephenson .7150    Jerry Reuss .8148 
1977    Jerry Stephenson .7155    Juan Marichal * .9600    Jerry Stephenson .7155    Bill Butler .7857 
1978    Chuck Stobbs * .7117    Juan Marichal * .9600    Jerry Stephenson .6962    Frank Tanana .7917 
1979    Chuck Stobbs * .7117    Juan Marichal * .9600    Bill Butler .6889    Gary Lavelle .8400 
1980    Chuck Stobbs * .7117    Juan Marichal * .9600    Bill Butler .6961    Lance Rautzhan .8077 
1981    Chuck Stobbs * .7117    Juan Marichal * .9600    Tom Underwood .6750    Lary Sorensen .7895 
1982    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6860    Greg Minton .8421 
1983    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6923    Rich Bordi
Mike Garman		 .8400 
1984    Chuck Stobbs * .7117    Juan Marichal * .9600    Rich Bordi .7000    Jay Howell .8846 
1985    Chuck Stobbs * .7117    Juan Marichal * .9600    Rich Bordi .6814    Don Stanhouse .7895 
1986    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6909    Lance Rautzhan .7826 
1987    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6833    Carl Willis .8095 
1988    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6836    Willie Hernandez .8333 
1989    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6904    Jose Deleon .8947 
1990    Chuck Stobbs * .7117    Juan Marichal * .9600    Lance Rautzhan .6722    Kevin Gross .8462 
 
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