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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Andy Hudson# | 1.055 | 1894-1897 | |
| 2 | Polideuco Vargas# | 1.046 | 1895-1897 | |
| 2 | Juan González# | 1.046 | 1895-1897 | |
| 4 | Brian Young# | 1.042 | 1894-1897 | |
| 5 | Nick King# | 1.037 | 1894-1897 | |
| 6 | Rubén Bustos# | 1.034 | 1895-1897 | |
| 7 | Jeremy Powell# | 1.029 | 1894-1897 | |
| 8 | Pedro Cedano# | 1.027 | 1896-1897 | |
| 9 | Rubén Turcios# | 1.021 | 1894-1897 | |
| 10 | Cody Roberson# | 1.015 | 1894-1897 | |
| 11 | Ryan Woods# | 1.012 | 1894-1897 | |
| 11 | Bibiano Sarabia# | 1.012 | 1896-1897 | |
| 13 | Víctor Cubero# | 1.005 | 1894-1897 | |
| 14 | Gustavo García# | 1.004 | 1894-1896 | |
| 15 | Arnulfo Moreno# | 0.996 | 1894-1897 | |
| 16 | Aaron Treadway# | 0.992 | 1894-1897 | |
| 16 | Bobby Griffith# | 0.992 | 1894-1897 | |
| 18 | Emanuel Carbajal# | 0.991 | 1894-1897 | |
| 19 | Almandeto Ramírez# | 0.989 | 1894-1897 | |
| 20 | Adelmo Ramírez# | 0.985 | 1894-1895 | |
| 21 | Fernando Jiménez# | 0.980 | 1894-1894 | |
| 21 | John Whaley# | 0.980 | 1894-1897 | |
| 23 | Martín González# | 0.963 | 1894-1897 | |
| 24 | Mercuriano Olivas | 0.959 | 1894-1896 |
