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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Kameron Guangorena | .4893 | 2033-2050 | |
| 2 | Masafumi Kawaguchi# | .4825 | 2041-2054 | |
| 3 | Enrique Pérez* | .4697 | 2013-2029 | |
| 4 | Tony Martínez | .4413 | 2020-2027 | |
| 5 | Ben Ross | .4352 | 2014-2026 | |
| 6 | Tim Stinson | .4349 | 2033-2043 | |
| 7 | Fernando Ramírez | .4254 | 2023-2035 | |
| 8 | Freddy Díaz | .4173 | 2038-2050 | |
| 9 | Ángelo Delgado | .4097 | 2034-2048 | |
| 10 | Luis Rodríguez | .4032 | 2013-2024 | |
| 11 | Mario Castillo | .3990 | 2023-2039 | |
| 12 | Jake Collins | .3844 | 2016-2023 | |
| 13 | Calvin Wilms | .3800 | 2032-2043 | |
| 14 | Félix Fernández | .3761 | 2043-2052 | |
| 15 | Gustavo Cortéz | .3694 | 2023-2035 | |
| 16 | Fortunato Rasquinha | .3632 | 2033-2045 | |
| 17 | Kelly Brown | .3630 | 2015-2027 | |
| 18 | Dana O'Quinlevan# | .3589 | 2043-2054 | |
| 19 | Gerardo Castillo | .3503 | 2025-2034 | |
| 20 | Pedro Cruz | .3474 | 2013-2019 |
