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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 | .4805 | 2041-2055 | |
| 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 | Lance Slaymaker# | .3845 | 2053-2061 | |
| 13 | Jake Collins | .3844 | 2016-2023 | |
| 14 | Calvin Wilms | .3800 | 2032-2043 | |
| 15 | Félix Fernández | .3761 | 2043-2052 | |
| 16 | Gustavo Cortéz | .3694 | 2023-2035 | |
| 17 | Fortunato Rasquinha | .3632 | 2033-2045 | |
| 18 | Kelly Brown | .3630 | 2015-2027 | |
| 19 | Pancho Hernández# | .3627 | 2044-2060 | |
| 20 | Dana O'Quinlevan | .3600 | 2043-2057 | |
| 21 | Gerardo Castillo | .3503 | 2025-2034 | |
| 22 | Pedro Cruz | .3474 | 2013-2019 | |
| 23 | Eduardo Lucciardi | .3067 | 2045-2058 |
