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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Pablo Muñóz | 1.080 | 2017-2022 | |
| 2 | Steve Collins | 1.072 | 2009-2016 | |
| 3 | Luis Martínez | 1.065 | 2023-2028 | |
| 3 | Ánibal Pérez | 1.065 | 2022-2026 | |
| 5 | Miguel Moreno | 1.062 | 2044-2052 | |
| 6 | Charlie Bragg# | 1.058 | 2054-2058 | |
| 7 | Robinson Ávila | 1.046 | 2018-2026 | |
| 8 | Francisco Palácios | 1.045 | 2043-2049 | |
| 9 | Bob Hernández# | 1.043 | 2052-2058 | |
| 10 | Edgardo Sierra | 1.042 | 2044-2049 | |
| 11 | Phil Soriano | 1.040 | 2023-2033 | |
| 12 | Buddy Bruggeman | 1.036 | 2035-2042 | |
| 13 | Cristóbal López | 1.026 | 2039-2042 | |
| 14 | Antenor Lisht | 1.018 | 2042-2046 | |
| 15 | Caspar Wanhalla | 1.014 | 2040-2044 | |
| 16 | Pepe Román | 1.013 | 2031-2038 | |
| 17 | Emmett Johnson | 1.010 | 2042-2045 | |
| 18 | Max Martínez | 1.009 | 2043-2046 | |
| 19 | Fabiano Ravanelli | 1.006 | 2040-2046 | |
| 20 | Vendelin Kalik | 1.002 | 2038-2043 | |
| 21 | António Cruz | 0.997 | 2034-2045 | |
| 21 | Paco Zamora | 0.997 | 2047-2051 | |
| 23 | Manny Gutiérrez | 0.996 | 2040-2051 | |
| 24 | Robert Stark | 0.992 | 2045-2048 | |
| 25 | Luis Castillo | 0.984 | 2020-2031 | |
| 26 | Alejandro Martínez# | 0.971 | 2052-2056 |
