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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Moses Benjamin | 1.140 | 1879-1887 | |
| 2 | Red Brzycki# | 1.092 | 1903-1907 | |
| 3 | Cornelius Quimby | 1.087 | 1878-1897 | |
| 4 | George Ammons# | 1.080 | 1901-1907 | |
| 5 | Otto Keating | 1.059 | 1888-1905 | |
| 6 | Claude Heaton | 1.056 | 1889-1906 | |
| 7 | Chester Ashby# | 1.055 | 1892-1899 | |
| 8 | Willy Meier# | 1.043 | 1901-1907 | |
| 8 | Oliver Menzies | 1.043 | 1891-1905 | |
| 10 | Fred Dickinson# | 1.041 | 1890-1907 | |
| 11 | Art Brogan# | 1.040 | 1892-1907 | |
| 11 | Roy Randle | 1.040 | 1896-1906 | |
| 13 | Theo Hubbard | 1.039 | 1892-1902 | |
| 14 | Cal Middleton | 1.034 | 1880-1900 | |
| 15 | Elmer McKinzy | 1.031 | 1885-1903 | |
| 16 | Will Hobbs | 1.003 | 1888-1905 | |
| 17 | Chip Dutra# | 1.002 | 1903-1907 | |
| 18 | Elmer Horton# | 1.001 | 1895-1907 | |
| 19 | Pete Blackwell# | 1.000 | 1896-1907 | |
| 20 | Ed Monahan | 0.996 | 1887-1905 | |
| 21 | Elmer Aubert | 0.992 | 1885-1904 | |
| 22 | Glenn Fittan | 0.991 | 1878-1889 | |
| 23 | Jean Beckwith# | 0.989 | 1890-1907 | |
| 24 | Bill Gatlin# | 0.988 | 1901-1907 | |
| 25 | Chester Noonan | 0.984 | 1884-1899 | |
| 26 | Lou Curzon | 0.981 | 1887-1902 | |
| 27 | Vic Nesbitt# | 0.978 | 1890-1907 | |
| 28 | David Meehan | 0.972 | 1889-1901 | |
| 29 | Eddie Jackson | 0.963 | 1882-1887 | |
| 30 | Kid O'Neil# | 0.961 | 1901-1907 | |
| 31 | Nate Galvin | 0.947 | 1887-1905 | |
| 32 | Len Parramore | 0.946 | 1891-1907 | |
| 33 | Ike Burton# | 0.939 | 1896-1907 | |
| 34 | Sam Marrs# | 0.925 | 1901-1907 | |
| 35 | Otis Wentworth | 0.923 | 1878-1903 | |
| 36 | Joe Wynn# | 0.904 | 1901-1907 | |
| 37 | Buck Sullivan# | 0.889 | 1893-1907 |
