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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Year | Champion | LgERA | LgAvg | Lg |
|---|---|---|---|---|
| 1884 | St. Paul Crusaders | 2.55 | .232 | WF |
| 1885 | Indianapolis Red Caps | 4.64 | .267 | WF |
| 1886 | Indianapolis Red Caps | 5.49 | .311 | WF |
| 1887 | Toledo Tornados | 4.17 | .263 | WF |
| 1888 | Toledo Tornados | 2.75 | .236 | WF |
| 1889 | Milwaukee Cream Caps | 8.79 | .270 | WF |
| 1890 | Milwaukee Cream Caps | 4.04 | .251 | WF |
| 1891 | Indianapolis Red Caps | 4.59 | .268 | WF |
| 1892 | Kansas City Stars | 4.79 | .289 | WF |
| 1893 | Indianapolis Red Caps | 4.96 | .287 | WF |
| 1894 | Indianapolis Red Caps | 5.15 | .295 | WF |
| 1895 | Indianapolis Red Caps | 4.98 | .289 | WF |
| 1896 | Kansas City Stars | 4.60 | .284 | WF |
| 1897 | Indianapolis Red Caps | 4.46 | .282 | WF |
| 1898 | Des Moines Provisioners | 4.15 | .274 | WF |
| 1899 | Des Moines Provisioners | 4.37 | .280 | WF |
| 1900 | Cleveland Grays | 4.47 | .278 | WF |
| 1901 | St. Joseph Saints | 4.28 | .287 | WF |
| 1902 | Denver Millionaires | 3.81 | .269 | WF |
| 1903 | Colorado Springs Pioneers | 3.37 | .254 | WF |
| 1904 | Colorado Springs Pioneers | 3.63 | .265 | WF |
| 1905 | Fort Wayne Warriors | 3.67 | .266 | WF |
| 1906 | Fort Wayne Warriors | 3.49 | .265 | WF |
| 1907 | Omaha Packers | 3.40 | .264 | WF |
