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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Jack Mason | .547 | 2015-2025 | |
| 2 | Carroll Kline | .513 | 2017-2023 | |
| 3 | Tony Sánchez | .482 | 2015-2019 | |
| 4 | Micheal Murdoch | .473 | 2016-2024 | |
| 4 | Tony Quintana | .473 | 2019-2027 | |
| 6 | Will Thomas | .434 | 2017-2025 | |
| 7 | Byron Isaacson | .429 | 2026-2031 | |
| 7 | Lawrence Washington | .429 | 2015-2018 | |
| 9 | Spencer Curry | .426 | 2015-2024 | |
| 9 | Menno van de Vlugt | .426 | 2023-2033 | |
| 11 | Júlio Mateo | .422 | 2023-2027 | |
| 12 | Francis Kelly | .415 | 2022-2031 | |
| 13 | Juan Salinas# | .408 | 2022-2035 | |
| 14 | Ricardo Pacheco | .407 | 2023-2032 | |
| 15 | Tasuku Goto# | .400 | 2029-2035 | |
| 16 | Claudio Mendoza | .399 | 2017-2026 | |
| 17 | Dave Ash | .395 | 2021-2034 | |
| 18 | Ron Peterson | .392 | 2021-2026 | |
| 19 | Roberto López | .391 | 2020-2027 | |
| 19 | Jim Burch# | .391 | 2025-2035 | |
| 21 | Senior Pond# | .390 | 2029-2032 | |
| 22 | Ignacio Martínez# | .388 | 2026-2035 | |
| 23 | Tony García | .382 | 2029-2033 | |
| 24 | Hiwahikeiki Noelani | .380 | 2019-2027 | |
| 25 | Satoshi Terada | .379 | 2023-2034 | |
| 25 | José Vázquez# | .379 | 2030-2035 | |
| 27 | Kwang-chih Feng# | .375 | 2032-2035 | |
| 28 | Jonah Moody | .369 | 2015-2027 | |
| 29 | Ricky Payton# | .367 | 2027-2035 | |
| 29 | José Rodríguez# | .367 | 2026-2035 | |
| 31 | Dennis Clifton | .365 | 2021-2028 | |
| 32 | Roy Williams | .360 | 2019-2026 | |
| 33 | Jesús Álvarez | .348 | 2023-2034 | |
| 34 | Clarence Therrien | .321 | 2026-2035 | |
| 35 | Jordan Hollins# | .304 | 2028-2035 |
