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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Steve Holmes | 1.080 | 1912-1916 | |
| 2 | Paco Chávez# | 1.053 | 1981-1987 | |
| 3 | Eugene Copeland | 1.040 | 1962-1965 | |
| 4 | Pat Hayes# | 1.034 | 1985-1988 | |
| 5 | Jude Shinault | 1.029 | 1970-1973 | |
| 6 | Santiago Azcarreta# | 1.020 | 1976-1979 | |
| 7 | Ricardo Tevada | 1.013 | 1945-1949 | |
| 8 | Phil Thurman | 0.994 | 1934-1938 | |
| 9 | Javier Martínez | 0.964 | 1969-1972 |
