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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Luis Martínez# | 1.062 | 1981-1990 | |
| 2 | Rick Mendelson | 1.049 | 1914-1929 | |
| 3 | Felipe Cruz | 1.037 | 1975-1980 | |
| 4 | Jordan Deas | 1.020 | 1914-1922 | |
| 5 | John Read | 0.994 | 1975-1984 | |
| 6 | John Monahan# | 0.990 | 1985-1990 | |
| 7 | Junior Coleman | 0.986 | 1972-1986 | |
| 8 | Freddi Garbrecht | 0.912 | 1940-1944 | |
| 9 | Renault Strambi | 0.895 | 1952-1964 |
