American League
| Year | Leader | ERA | Team | Runner-up | ERA | Ref |
|---|---|---|---|---|---|---|
| 1901 | Young, CyCy Young† | 1.62 | Boston Americans | Callahan, NixeyNixey Callahan | 2.42 | |
| 1902 | Siever, EdEd Siever | 1.91 | Detroit Tigers | Waddell, RubeRube Waddell† | 2.05 | |
| 1903 | Moore, EarlEarl Moore | 1.74 | Cleveland Naps | Young, CyCy Young† | 2.08 | |
| 1904 | Joss, AddieAddie Joss† | 1.59 | Cleveland Naps | Waddell, RubeRube Waddell† | 1.62 | |
| 1905 | Waddell, RubeRube Waddell† | 1.48 | Philadelphia Athletics | White, DocDoc White | 1.76 | |
| 1906 | White, DocDoc White | 1.52 | Chicago White Sox | Pelty, BarneyBarney Pelty | 1.59 | |
| 1907 | Walsh, EdEd Walsh† | 1.60 | Chicago White Sox | Killian, EdEd Killian | 1.78 | |
| 1908 | Joss, AddieAddie Joss† | 1.16 | Cleveland Naps | Young, CyCy Young† | 1.26 | |
| 1909 | Krause, HarryHarry Krause | 1.39 | Philadelphia Athletics | Walsh, EdEd Walsh† | 1.41 | |
| 1910 | Walsh, EdEd Walsh† | 1.27 | Chicago White Sox | Coombs, JackJack Coombs | 1.30 | |
| 1911 | Gregg, VeanVean Gregg | 1.80 | Cleveland Naps | Johnson, WalterWalter Johnson† | 1.90 | |
| 1912 | Johnson, WalterWalter Johnson† | 1.39 | Washington Senators | Wood, JoeJoe Wood | 1.91 | |
| 1913 | Johnson, WalterWalter Johnson† | 1.14 | Washington Senators | Cicotte, EddieEddie Cicotte | 1.58 | |
| 1914 | Dutch LeonardDutch Leonard | 0.96 | Boston Red Sox | Foster, RubeRube Foster | 1.70 | |
| 1915 | Wood, JoeJoe Wood | 1.49 | Boston Red Sox | Johnson, WalterWalter Johnson† | 1.55 | |
| 1916 | Ruth, BabeBabe Ruth† | 1.75 | Boston Red Sox | Cicotte, EddieEddie Cicotte | 1.78 | |
| 1917 | Cicotte, EddieEddie Cicotte | 1.53 | Chicago White Sox | Mays, CarlCarl Mays | 1.74 | |
| 1918 | Johnson, WalterWalter Johnson† | 1.27 | Washington Senators | Coveleski, StanStan Coveleski† | 1.82 | |
| 1919 | Johnson, WalterWalter Johnson† | 1.49 | Washington Senators | Cicotte, EddieEddie Cicotte | 1.82 | |
| 1920 | Shawkey, BobBob Shawkey | 2.45 | New York Yankees | Coveleski, StanStan Coveleski† | 2.49 | |
| 1921 | Faber, RedRed Faber† | 2.48 | Chicago White Sox | Mogridge, GeorgeGeorge Mogridge | 3.00 | |
| 1922 | Faber, RedRed Faber† | 2.81 | Chicago White Sox | Pillette, HermanHerman Pillette | 2.85 | |
| 1923 | Coveleski, StanStan Coveleski† | 2.76 | Washington Senators | Hoyt, WaiteWaite Hoyt† | 3.02 | |
| 1924 | Johnson, WalterWalter Johnson† | 2.72 | Washington Senators | Zachary, TomTom Zachary | 2.75 | |
| 1925 | Coveleski, StanStan Coveleski† | 2.84 | Washington Senators | Pennock, HerbHerb Pennock† | 2.96 | |
| 1926 | Grove, LeftyLefty Grove† | 2.51 | Philadelphia Athletics | Uhle, GeorgeGeorge Uhle | 2.83 | |
| 1927 | Moore, WilcyWilcy Moore | 2.28 | New York Yankees | Hoyt, WaiteWaite Hoyt† | 2.63 | |
| 1928 | Braxton, GarlandGarland Braxton | 2.51 | Washington Senators | Pennock, HerbHerb Pennock† | 2.56 | |
| 1929 | Grove, LeftyLefty Grove† | 2.81 | Philadelphia Athletics | Marberry, FirpoFirpo Marberry | 3.06 | |
| 1930 | Grove, LeftyLefty Grove† | 2.54 | Philadelphia Athletics | Ferrell, WesWes Ferrell | 3.31 | |
| 1931 | Grove, LeftyLefty Grove† | 2.06 | Philadelphia Athletics | Gomez, LeftyLefty Gomez† | 2.67 | |
| 1932 | Grove, LeftyLefty Grove† | 2.84 | Philadelphia Athletics | Ruffing, RedRed Ruffing† | 3.09 | |
| 1933 | Harder, MelMel Harder | 2.95 | Cleveland Indians | Bridges, TommyTommy Bridges | 3.09 | |
| 1934 | Gomez, LeftyLefty Gomez† | 2.33 | New York Yankees | Harder, MelMel Harder | 2.61 | |
| 1935 | Grove, LeftyLefty Grove† | 2.70 | Boston Red Sox | Lyons, TedTed Lyons† | 3.02 | |
| 1936 | Grove, LeftyLefty Grove† | 2.81 | Boston Red Sox | Allen, JohnnyJohnny Allen | 3.44 | |
| 1937 | Gomez, LeftyLefty Gomez† | 2.33 | New York Yankees | Stratton, MontyMonty Stratton | 2.40 | |
| 1938 | Grove, LeftyLefty Grove† | 3.08 | Boston Red Sox | Ruffing, RedRed Ruffing† | 3.31 | |
| 1939 | Grove, LeftyLefty Grove† | 2.54 | Boston Red Sox | Lyons, TedTed Lyons† | 2.76 | |
| 1940 | Feller, BobBob Feller† | 2.61 | Cleveland Indians | Newsom, BoboBobo Newsom | 2.83 | |
| 1941 | Lee, ThorntonThornton Lee | 2.37 | Chicago White Sox | Benton, AlAl Benton | 2.97 | |
| 1942 | Lyons, TedTed Lyons† | 2.10 | Chicago White Sox | Bonham, TinyTiny Bonham | 2.27 | |
| 1943 | Chandler, SpudSpud Chandler | 1.64 | New York Yankees | Bonham, TinyTiny Bonham | 2.27 | |
| 1944 | Trout, DizzyDizzy Trout | 2.12 | Detroit Tigers | Newhouser, HalHal Newhouser† | 2.22 | |
| 1945 | Newhouser, HalHal Newhouser† | 1.81 | Detroit Tigers | Benton, AlAl Benton | 2.02 | |
| 1946 | Newhouser, HalHal Newhouser† | 1.94 | Detroit Tigers | Chandler, SpudSpud Chandler | 2.10 | |
| 1947 | Haynes, JoeJoe Haynes | 2.42 | Chicago White Sox | Feller, BobBob Feller† | 2.68 | |
| 1948 | Bearden, GeneGene Bearden | 2.43 | Cleveland Indians | Scarborough, RayRay Scarborough | 2.82 | |
| 1949 | Garcia, MikeMike Garcia | 2.36 | Cleveland Indians | Parnell, MelMel Parnell | 2.77 | |
| 1950 | Wynn, EarlyEarly Wynn† | 3.20 | Cleveland Indians | Garver, NedNed Garver | 3.39 | |
| 1951 | Rogovin, SaulSaul Rogovin | 2.78 | Chicago White Sox Detroit Tigers |
Lopat, EdEd Lopat | 2.91 | |
| 1952 | Reynolds, AllieAllie Reynolds | 2.06 | New York Yankees | Garcia, MikeMike Garcia | 2.37 | |
| 1953 | Lopat, EdEd Lopat | 2.42 | New York Yankees | Pierce, BillyBilly Pierce | 2.72 | |
| 1954 | Garcia, MikeMike Garcia | 2.64 | Cleveland Indians | Consuegra, SandySandy Consuegra | 2.69 | |
| 1955 | Pierce, BillyBilly Pierce | 1.97 | Chicago White Sox | Ford, WhiteyWhitey Ford† | 2.63 | |
| 1956 | Ford, WhiteyWhitey Ford† | 2.47 | New York Yankees | Score, HerbHerb Score | 2.53 | |
| 1957 | Shantz, BobbyBobby Shantz | 2.45 | New York Yankees | Sturdivant, TomTom Sturdivant | 2.54 | |
| 1958 | Ford, WhiteyWhitey Ford† | 2.01 | New York Yankees | Pierce, BillyBilly Pierce | 2.68 | |
| 1959 | Wilhelm, HoytHoyt Wilhelm† | 2.19 | Baltimore Orioles | Pascual, CamiloCamilo Pascual | 2.64 | |
| 1960 | Baumann, FrankFrank Baumann | 2.67 | Chicago White Sox | Bunning, JimJim Bunning† | 2.79 | |
| 1961 | Donovan, DickDick Donovan | 2.40 | Washington Senators | Stafford, BillBill Stafford | 2.68 | |
| 1962 | Aguirre, HankHank Aguirre | 2.21 | Detroit Tigers | Roberts, RobinRobin Roberts† | 2.78 | |
| 1963 | Peters, GaryGary Peters | 2.33 | Chicago White Sox | Pizarro, JuanJuan Pizarro | 2.39 | |
| 1964 | Chance, DeanDean Chance | 1.65 | Los Angeles Angels | Horlen, JoeJoe Horlen | 1.88 | |
| 1965 | McDowell, SamSam McDowell | 2.18 | Cleveland Indians | Fisher, EddieEddie Fisher | 2.40 | |
| 1966 | Peters, GaryGary Peters | 1.98 | Chicago White Sox | Horlen, JoeJoe Horlen | 2.43 | |
| 1967 | Horlen, JoeJoe Horlen | 2.06 | Chicago White Sox | Peters, GaryGary Peters | 2.28 | |
| 1968 | Tiant, LuisLuis Tiant | 1.60 | Cleveland Indians | McDowell, SamSam McDowell | 1.81 | |
| 1969 | Bosman, DickDick Bosman | 2.19 | Washington Senators | Palmer, JimJim Palmer† | 2.34 | |
| 1970 | Segui, DiegoDiego Seguí | 2.56 | Oakland Athletics | Palmer, JimJim Palmer† | 2.71 | |
| 1971 | Blue, VidaVida Blue | 1.82 | Oakland Athletics | Wood, WilburWilbur Wood | 1.91 | |
| 1972 | Tiant, LuisLuis Tiant | 1.91 | Boston Red Sox | Perry, GaylordGaylord Perry† | 1.92 | |
| 1973 | Palmer, JimJim Palmer† | 2.40 | Baltimore Orioles | Blyleven, BertBert Blyleven | 2.52 | |
| 1974 | Hunter, CatfishCatfish Hunter† | 2.49 | Oakland Athletics | Perry, GaylordGaylord Perry† | 2.51 | |
| 1975 | Palmer, JimJim Palmer† | 2.09 | Baltimore Orioles | Hunter, CatfishCatfish Hunter† | 2.58 | |
| 1976 | Fidrych, MarkMark Fidrych | 2.34 | Detroit Tigers | Blue, VidaVida Blue | 2.35 | |
| 1977 | Tanana, FrankFrank Tanana | 2.54 | California Angels | Blyleven, BertBert Blyleven | 2.72 | |
| 1978 | Guidry, RonRon Guidry | 1.74 | New York Yankees | Matlack, JonJon Matlack | 2.27 | |
| 1979 | Guidry, RonRon Guidry | 2.78 | New York Yankees | John, TommyTommy John | 2.96 | |
| 1980 | May, RudyRudy May | 2.46 | New York Yankees | Norris, MikeMike Norris | 2.53 | |
| 1981 | Righetti, DaveDave Righetti | 2.05 | New York Yankees | Stewart, SammySammy Stewart | 2.32 | |
| 1982 | Sutcliffe, RickRick Sutcliffe | 2.96 | Cleveland Indians | Stanley, BobBob Stanley | 3.10 | |
| 1983 | Honeycutt, RickRick Honeycutt | 2.42 | Texas Rangers | Boddicker, MikeMike Boddicker | 2.77 | |
| 1984 | Boddicker, MikeMike Boddicker | 2.79 | Baltimore Orioles | Stieb, DaveDave Stieb | 2.83 | |
| 1985 | Stieb, DaveDave Stieb | 2.48 | Toronto Blue Jays | Leibrandt, CharlieCharlie Leibrandt | 2.69 | |
| 1986 | Clemens, RogerRoger Clemens | 2.48 | Boston Red Sox | Higuera, TeddyTeddy Higuera | 2.79 | |
| 1987 | Key, JimmyJimmy Key | 2.76 | Toronto Blue Jays | Viola, FrankFrank Viola | 2.90 | |
| 1988 | Anderson, AllanAllan Anderson | 2.45 | Minnesota Twins | Higuera, TeddyTeddy Higuera | 2.45 | |
| 1989 | Saberhagen, BretBret Saberhagen | 2.16 | Kansas City Royals | Finley, ChuckChuck Finley | 2.57 | |
| 1990 | Clemens, RogerRoger Clemens | 1.93 | Boston Red Sox | Finley, ChuckChuck Finley | 2.40 | |
| 1991 | Clemens, RogerRoger Clemens | 2.62 | Boston Red Sox | Candiotti, TomTom Candiotti | 2.65 | |
| 1992 | Clemens, RogerRoger Clemens | 2.41 | Boston Red Sox | Appier, KevinKevin Appier | 2.46 | |
| 1993 | Appier, KevinKevin Appier | 2.56 | Kansas City Royals | Alvarez, WilsonWilson Alvarez | 2.95 | |
| 1994 | Ontiveros, SteveSteve Ontiveros | 2.65 | Oakland Athletics | Clemens, RogerRoger Clemens | 2.85 | |
| 1995 | Johnson, RandyRandy Johnson | 2.48 | Seattle Mariners | Wakefield, TimTim Wakefield | 2.95 | |
| 1996 | Guzman, JuanJuan Guzmán | 2.93 | Toronto Blue Jays | Hentgen, PatPat Hentgen | 3.22 | |
| 1997 | Clemens, RogerRoger Clemens | 2.05 | Toronto Blue Jays | Johnson, RandyRandy Johnson | 2.28 | |
| 1998 | Clemens, RogerRoger Clemens | 2.65 | Toronto Blue Jays | Martinez, PedroPedro Martínez | 2.89 | |
| 1999 | Martinez, PedroPedro Martínez | 2.07 | Boston Red Sox | Cone, DavidDavid Cone | 3.44 | |
| 2000 | Martinez, PedroPedro Martínez | 1.74 | Boston Red Sox | Clemens, RogerRoger Clemens | 3.70 | |
| 2001 | Garcia, FreddyFreddy García | 3.05 | Seattle Mariners | Mussina, MikeMike Mussina | 3.15 | |
| 2002 | Martinez, PedroPedro Martínez | 2.26 | Boston Red Sox | Lowe, DerekDerek Lowe | 2.58 | |
| 2003 | Martinez, PedroPedro Martínez | 2.22 | Boston Red Sox | Hudson, TimTim Hudson | 2.70 | |
| 2004 | Santana, JohanJohan Santana | 2.61 | Minnesota Twins | Schilling, CurtCurt Schilling | 3.26 | |
| 2005 | Millwood, KevinKevin Millwood | 2.86 | Cleveland Indians | Santana, JohanJohan Santana | 2.87 | |
| 2006 | Santana, JohanJohan Santana | 2.77 | Minnesota Twins | Halladay, RoyRoy Halladay | 3.19 | |
| 2007 | Lackey, JohnJohn Lackey | 3.01 | Los Angeles Angels of Anaheim | Carmona, FaustoFausto Carmona | 3.06 | |
| 2008 | Lee, CliffCliff Lee | 2.54 | Cleveland Indians | Halladay, RoyRoy Halladay | 2.78 | |
| 2009 | Greinke, ZackZack Greinke | 2.16 | Kansas City Royals | Hernandez, FelixFélix Hernández | 2.49 | |
| 2010 | Hernandez, FelixFélix Hernández | 2.27 | Seattle Mariners | Buchholz, ClayClay Buchholz | 2.33 | |
| 2011 | Verlander, JustinJustin Verlander | 2.40 | Detroit Tigers | Weaver, JeredJered Weaver | 2.41 | |
| 2012 | Price, DavidDavid Price | 2.56 | Tampa Bay Rays | Verlander, JustinJustin Verlander | 2.64 |
Read more about this topic: List Of Major League Baseball Earned Run Average Champions
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