League Index
 
Bold indicates World Series Champion
 
Lg LgAvg LgERA Champion Year Champion LgERA LgAvg Lg
AL .255 3.23 Milwaukee Brewers
1901 Chicago (N) Orphans
3.70 .266 NL
AL .263 3.63 Philadelphia (A) Athletic
1902 Cincinnati Reds
3.57 .260 NL
AL .269 4.18 Chicago (A) White Stockin 1903 Cincinnati Reds 4.30 .279 NL
AL .272 3.93 Detroit Tigers 1904 Cincinnati Reds 3.92 .272 NL
AL .267 3.69 Detroit Tigers 1905 Cincinnati Reds 3.84 .268 NL
AL .255 3.12 Detroit Tigers 1906 Cincinnati Reds 3.11 .257 NL
AL .247 3.02 Detroit Tigers 1907 Cincinnati Reds 3.16 .253 NL
AL .251 3.05 Cleveland Naps 1908 Philadelphia (N) Phillies 3.31 .254 NL
AL .243 3.04 Chicago (A) White Sox 1909 Philadelphia (N) Phillies 3.14 .245 NL
AL .245 3.06 Detroit Tigers 1910 St. Louis (N) Cardinals 3.18 .244 NL
AL .270 3.95 Washington Senators 1911 St. Louis (N) Cardinals 3.83 .265 NL
AL .267 3.84 Boston (A) Red Sox 1912 St. Louis (N) Cardinals 3.64 .262 NL
AL .258 3.52 Boston (A) Red Sox 1913 St. Louis (N) Cardinals 3.64 .267 NL
AL .255 3.44 Boston (A) Red Sox 1914 St. Louis (N) Cardinals 3.66 .264 NL
AL .238 3.05 St. Louis (A) Browns 1915 St. Louis (N) Cardinals 3.47 .254 NL
AL .254 3.32 Boston (A) Red Sox 1916 St. Louis (N) Cardinals 3.74 .266 NL
AL .258 3.42 Detroit Tigers 1917 St. Louis (N) Cardinals 3.33 .257 NL
AL .256 3.22 Boston (A) Red Sox 1918 St. Louis (N) Cardinals 3.29 .254 NL
AL .274 3.52 Washington Senators 1919 Cincinnati Reds 3.59 .272 NL
AL .280 4.04 Washington Senators 1920 Philadelphia (N) Phillies 3.97 .276 NL
AL .295 4.56 Washington Senators 1921 Cincinnati Reds 4.79 .292 NL
AL .280 4.10 Washington Senators 1922 St. Louis (N) Cardinals 4.60 .290 NL
AL .281 4.04 Washington Senators 1923 Cincinnati Reds 4.76 .290 NL
AL .283 4.11 Washington Senators 1924 Cincinnati Reds 4.55 .289 NL
AL .281 4.36 Washington Senators 1925 Cincinnati Reds 4.59 .284 NL
AL .279 4.10 Washington Senators 1926 Philadelphia (N) Phillies 4.05 .272 NL
AL .271 3.96 Washington Senators 1927 Cincinnati Reds 4.28 .280 NL