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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Keith MacKey# | .3886 | 2020 | |
| 2 | Jay Parker# | .3581 | 2020 | |
| 3 | António Delgado# | .3571 | 2020 | |
| 4 | Álex Ramírez# | .3557 | 2021 | |
| 5 | Abraham Jacobs# | .3470 | 2021 | |
| 6 | Fernando Silva# | .3451 | 2021 | |
| 7 | Fernando Pérez# | .3443 | 2021 | |
| 8 | Bronson Nicholls# | .3359 | 2021 | |
| 9 | José Ramos# | .3294 | 2020 | |
| 10 | Jesús Reyes# | .3180 | 2021 | |
| 11 | Roberto Escues# | .3127 | 2021 | |
| 12 | Alfredo Suárez# | .3015 | 2021 | |
| 13 | José Ramos# | .2964 | 2021 | |
| 14 | Brent Ryan# | .2933 | 2020 | |
| 15 | Fernando Silva# | .2912 | 2020 | |
| 16 | Ernesto Souza# | .2735 | 2021 | |
| 17 | Felipe Gonzáles# | .2696 | 2020 | |
| 18 | Fernando Pérez# | .2534 | 2020 |
