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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Juan Salinas# | .4954 | 2023 | |
| 2 | Juan Salinas# | .4715 | 2025 | |
| 3 | Kazunori Ito | .4570 | 2020 | |
| 4 | Emílio Barbán | .4558 | 2022 | |
| 5 | Alex Niemann# | .4524 | 2026 | |
| 6 | Menno van de Vlugt# | .4476 | 2024 | |
| 7 | Jaime Chavarriaga# | .4400 | 2020 | |
| 8 | Juan Salinas# | .4383 | 2026 | |
| 9 | Bob Campbell# | .4209 | 2026 | |
| 10 | Ludwig Kluge# | .4164 | 2021 | |
| 11 | Kyle Bridges | .4101 | 2024 | |
| 12 | Kade Knowles# | .4059 | 2023 | |
| 13 | Dan Lewis | .4031 | 2020 | |
| 14 | Kurt Chappell | .3987 | 2022 | |
| 15 | Álex Rodríguez# | .3969 | 2025 | |
| 16 | Greg Hart | .3941 | 2022 | |
| 17 | Christian O'Dell | .3831 | 2022 | |
| 18 | Zong-yuan Fung# | .3787 | 2025 | |
| 19 | Alfredo Méndez# | .3764 | 2021 | |
| 20 | Juan Salinas# | .3738 | 2024 | |
| 21 | Brett Callison# | .3726 | 2023 | |
| 22 | Hiwahikeiki Noelani# | .3694 | 2024 | |
| 23 | Juan Blanco# | .3692 | 2025 | |
| 24 | Javier Rivera# | .3679 | 2024 | |
| 25 | Ed Adams# | .3667 | 2025 | |
| 26 | Manuel Martínez# | .3654 | 2022 | |
| 27 | Christian O'Dell | .3636 | 2020 | |
| 28 | Alfredo Mojica# | .3508 | 2026 | |
| 29 | Raúl Valadez# | .3500 | 2024 | |
| 30 | Javier Díaz | .3487 | 2021 | |
| 31 | Tim Wilson | .3486 | 2020 | |
| 32 | Juan Martínez | .3453 | 2022 | |
| 33 | Josh Stafford# | .3451 | 2023 | |
| 34 | Ben Anderson# | .3409 | 2024 | |
| 35 | Juan Martínez | .3187 | 2021 | |
| 36 | Jesús Álvarez# | .3180 | 2023 | |
| 37 | Roy Williams# | .3101 | 2026 | |
| 38 | Lorenzo Díaz# | .2959 | 2026 | |
| 39 | Luis Alomar# | .2893 | 2023 | |
| 40 | Clarence Therrien# | .2731 | 2026 | |
| 41 | Ernesto Souza# | .2717 | 2025 |
