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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Roger Lakes# | .4662 | 2024 | |
| 2 | Herman Cook# | .4543 | 2020 | |
| 3 | Jorge Barrios# | .4507 | 2024 | |
| 4 | Phil Parkinson# | .4169 | 2022 | |
| 5 | Xavier Vásquez# | .4069 | 2023 | |
| 6 | Mario Piña# | .3987 | 2024 | |
| 7 | Claudio Mendoza# | .3925 | 2021 | |
| 8 | Xavier Hernández# | .3924 | 2024 | |
| 9 | Eldon McGillivour# | .3890 | 2021 | |
| 10 | Dave Morris# | .3864 | 2021 | |
| 11 | Tony Romero# | .3808 | 2022 | |
| 12 | Eldon McGillivour# | .3741 | 2022 | |
| 13 | Josh Stafford# | .3723 | 2022 | |
| 14 | Chris Costa# | .3665 | 2024 | |
| 15 | Jon Erickson# | .3634 | 2025 | |
| 16 | Jean Chamissa# | .3499 | 2021 | |
| 17 | Steve Camp | .3483 | 2020 | |
| 18 | Lorenzo Sabastro# | .3478 | 2023 | |
| 19 | Alonso Márquez# | .3472 | 2022 | |
| 20 | Neil Nash# | .3367 | 2023 | |
| 21 | Jon Erickson# | .3363 | 2024 | |
| 22 | Jon Erickson# | .3333 | 2020 | |
| 23 | Alonso Solís# | .3305 | 2024 | |
| 24 | Jay Kidd# | .3294 | 2025 | |
| 25 | Javier Santos# | .3229 | 2024 | |
| 26 | Ludovico Trezza# | .3226 | 2024 | |
| 27 | Jean Chamissa# | .3199 | 2022 | |
| 28 | Phil Parkinson# | .3060 | 2025 | |
| 29 | Emílio Gonzáles# | .3036 | 2023 | |
| 30 | Eldon McGillivour# | .3025 | 2023 | |
| 31 | Emílio Gonzáles# | .2997 | 2024 | |
| 32 | Fernando Castro# | .2909 | 2022 | |
| 33 | Claudio Mendoza# | .2866 | 2020 | |
| 34 | Miguel Angel González# | .2815 | 2023 | |
| 35 | Carlos López# | .2641 | 2025 | |
| 36 | Marty Hayden# | .2474 | 2025 | |
| 37 | Fernando Castro# | .2412 | 2025 |
