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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gavin Banks | 1.123 | 1945-1949 | |
| 2 | Guy Knight | 1.083 | 1965-1968 | |
| 3 | Claudio Valdéz | 1.070 | 1930-1933 | |
| 4 | Alberto Cervantes# | 1.063 | 1986-1989 | |
| 5 | Pete Hernández# | 1.038 | 1983-1985 | |
| 6 | George Goodwin | 1.026 | 1975-1979 | |
| 7 | Luis Carmona | 1.013 | 1957-1963 | |
| 8 | Maxime Pelletier | 1.010 | 1976-1980 | |
| 9 | Mike Payne# | 0.944 | 1979-1983 |
