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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Júlio Mateo# | .4842 | 2025 | |
| 2 | Carlos Padilla# | .4742 | 2023 | |
| 3 | Jason Alexander# | .4693 | 2022 | |
| 4 | Sean Booth | .4645 | 2023 | |
| 5 | Reijiro Sato | .4583 | 2023 | |
| 6 | Shojiro Kimura | .4560 | 2021 | |
| 7 | José Vargas# | .4555 | 2028 | |
| 8 | Floyd Mitchell# | .4545 | 2024 | |
| 9 | Sean MacKnight# | .4543 | 2024 | |
| 10 | Scott Britt | .4438 | 2021 | |
| 11 | Gilberto Rodríguez# | .4409 | 2028 | |
| 12 | Raúl Andrade# | .4408 | 2021 | |
| 13 | Júlio Mateo# | .4319 | 2027 | |
| 14 | Hugo Rampley# | .4309 | 2026 | |
| 15 | Juan Jose Díaz | .4286 | 2020 | |
| 16 | Artie Miller# | .4255 | 2028 | |
| 17 | Timmy Appeldoorn# | .4242 | 2020 | |
| 18 | Quincy van Enk# | .4203 | 2022 | |
| 19 | Clint Anthony | .4199 | 2021 | |
| 20 | Blair Sweeny# | .4147 | 2026 | |
| 21 | Tony Farquharson# | .4131 | 2022 | |
| 22 | Nam-sup Yi | .4099 | 2022 | |
| 23 | António Guzmán# | .4094 | 2025 | |
| 24 | Jim Burch# | .4056 | 2028 | |
| 25 | Esteban Casillas# | .3994 | 2026 | |
| 25 | Dennis Clifton# | .3994 | 2024 | |
| 27 | Gerald Clark# | .3923 | 2023 | |
| 28 | John Jenkins | .3901 | 2020 | |
| 29 | Carl Carlson | .3834 | 2022 | |
| 30 | Al Thomas# | .3827 | 2023 | |
| 31 | Lorenzo Ramírez# | .3820 | 2023 | |
| 32 | Júlio Mateo# | .3815 | 2026 | |
| 33 | Al Thomas# | .3799 | 2024 | |
| 34 | Steffen Taylor | .3770 | 2020 | |
| 35 | Bartolo Martínez | .3754 | 2020 | |
| 36 | Ethan Miller# | .3697 | 2024 | |
| 37 | Dennis Clifton# | .3658 | 2023 | |
| 38 | Ramiro Gonzáles# | .3630 | 2025 | |
| 39 | Esteban Casillas# | .3628 | 2025 | |
| 39 | Jorge Flores# | .3628 | 2027 | |
| 41 | Felipe Cisneros | .3569 | 2023 | |
| 42 | Scott Britt | .3565 | 2020 | |
| 43 | Gerald Clark# | .3549 | 2024 | |
| 44 | Luis Silva | .3529 | 2023 | |
| 45 | Adrian Barr# | .3512 | 2022 | |
| 46 | San-gui Liang | .3412 | 2020 | |
| 47 | António Guzmán# | .3375 | 2028 | |
| 48 | Gilberto Patino# | .3333 | 2026 | |
| 49 | Ray Whittier | .3323 | 2020 | |
| 49 | Abdul-Fattah bin Najjar# | .3323 | 2027 | |
| 51 | Joe Phillips# | .3278 | 2024 | |
| 52 | Juan Gabriel# | .3260 | 2024 | |
| 53 | Brandon Cooper# | .3123 | 2027 | |
| 54 | Ronald Hines# | .2812 | 2027 | |
| 55 | Quigley Gibson# | .2560 | 2028 |
