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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Júlio Montoya | .4803 | 2033-2042 | |
| 2 | Alejandro Rodríguez | .4610 | 2036-2050 | |
| 3 | Alfredo Velázquez | .4586 | 2030-2036 | |
| 4 | Doug Glover, Jr. | .4568 | 2034-2043 | |
| 5 | Alfredo Padilla | .4510 | 2037-2042 | |
| 6 | Virginia Rain | .4363 | 2042-2055 | |
| 7 | Xavier Álvarez | .4332 | 2031-2039 | |
| 8 | Eduardo Montoya | .4245 | 2017-2026 | |
| 9 | António Méndez | .4234 | 2032-2043 | |
| 10 | Brendan Kerndl | .4219 | 2034-2047 | |
| 11 | António Sánchez | .4153 | 2015-2019 | |
| 12 | Don Hattie# | .4018 | 2046-2054 | |
| 13 | Ricardo Guerra | .3959 | 2026-2040 | |
| 14 | Claudio Chávez | .3927 | 2027-2041 | |
| 15 | Chuck Pate | .3885 | 2023-2032 | |
| 16 | António Colomo | .3873 | 2027-2032 | |
| 17 | Thomas Davis | .3458 | 2017-2027 | |
| 18 | Dave Stover | .3385 | 2018-2023 | |
| 19 | Paul Brown# | .3155 | 2046-2058 |
