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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Charles Underwood | 1.108 | 1876-1888 | |
| 2 | Mickey Dahlberg# | 1.094 | 1903-1907 | |
| 3 | Ed Moffitt | 1.073 | 1880-1890 | |
| 4 | Joe Farley# | 1.068 | 1903-1907 | |
| 5 | Dutch Keiler# | 1.063 | 1902-1907 | |
| 6 | John Underwood# | 1.062 | 1902-1907 | |
| 7 | Elmer Manning# | 1.060 | 1903-1907 | |
| 8 | Frank Daniels | 1.056 | 1884-1899 | |
| 9 | Milton Rinck# | 1.055 | 1903-1907 | |
| 10 | Frank Hampton | 1.049 | 1892-1903 | |
| 11 | Pete Kingsbury# | 1.037 | 1893-1907 | |
| 11 | David Hudson | 1.037 | 1891-1906 | |
| 13 | Ed Dietrich# | 1.027 | 1897-1907 | |
| 14 | Elmer Sparks | 1.023 | 1890-1902 | |
| 15 | Alfred Dwyer | 1.018 | 1885-1905 | |
| 16 | Charlie Dozier | 1.015 | 1879-1887 | |
| 17 | Dan Mitchell | 1.014 | 1884-1905 | |
| 18 | Cal Hoffmann | 1.013 | 1882-1893 | |
| 19 | Ed Stark | 0.997 | 1888-1904 | |
| 20 | Clar Booker | 0.995 | 1890-1904 | |
| 21 | George Maroney | 0.993 | 1891-1903 | |
| 22 | Edgar Woodard | 0.991 | 1879-1897 | |
| 23 | Frank Sullivan# | 0.982 | 1899-1907 | |
| 24 | Will Hobbs | 0.980 | 1888-1905 | |
| 25 | Will Marsh# | 0.973 | 1888-1907 | |
| 26 | Paul Ripley | 0.971 | 1888-1905 | |
| 27 | Bill Wheeler# | 0.968 | 1901-1907 | |
| 28 | Bob Good# | 0.966 | 1901-1907 | |
| 29 | Harry Ducharme# | 0.961 | 1896-1907 | |
| 30 | Dan Moriarty | 0.953 | 1885-1900 | |
| 31 | Bob Wilhoit# | 0.952 | 1901-1907 | |
| 32 | John Martin | 0.950 | 1876-1888 | |
| 33 | Abner Channing# | 0.947 | 1899-1907 | |
| 34 | Denny Reardon | 0.904 | 1887-1905 |
