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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Raúl Ortíz | 1.103 | 2015-2020 | |
| 2 | Kyle Castleberry# | 1.081 | 2026-2031 | |
| 3 | Ken Curtis | 1.078 | 2010-2014 | |
| 4 | Júlio Sánchez | 1.048 | 2006-2021 | |
| 5 | Dave Staton | 1.043 | 1993-2001 | |
| 6 | Felipe Costa# | 1.037 | 2026-2030 | |
| 7 | Marcos Armas | 1.033 | 1993-2001 | |
| 8 | Juan Méndez | 1.014 | 2007-2018 | |
| 9 | Danny Buckley | 0.975 | 2010-2018 | |
| 10 | Ángel González | 0.958 | 2010-2013 |
