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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 | Rafael García | .524 | 2017-2021 | |
| 3 | Carroll Kline | .513 | 2017-2023 | |
| 4 | Joe Ferneyhough | .483 | 2017-2019 | |
| 5 | Tony Sánchez | .482 | 2015-2019 | |
| 6 | Micheal Murdoch | .473 | 2016-2024 | |
| 6 | Tony Quintana | .473 | 2019-2027 | |
| 8 | Edward Baker | .455 | 2015-2022 | |
| 9 | Will Thomas | .434 | 2017-2025 | |
| 10 | Byron Isaacson# | .429 | 2026-2031 | |
| 10 | Lawrence Washington | .429 | 2015-2018 | |
| 12 | Spencer Curry | .426 | 2015-2024 | |
| 13 | Júlio Mateo# | .422 | 2023-2027 | |
| 14 | Juan Salinas# | .415 | 2022-2031 | |
| 14 | Francis Kelly# | .415 | 2022-2031 | |
| 16 | Claudio Mendoza | .399 | 2017-2026 | |
| 17 | Ricardo Pacheco# | .397 | 2023-2030 | |
| 17 | Bastyăo Lizardo# | .397 | 2017-2026 | |
| 19 | Ron Peterson | .392 | 2021-2026 | |
| 20 | Roberto López# | .391 | 2020-2027 | |
| 21 | Hiwahikeiki Noelani# | .380 | 2019-2027 | |
| 21 | Christian O'Dell | .380 | 2019-2023 | |
| 21 | Satoshi Terada# | .380 | 2023-2027 | |
| 24 | Jonah Moody | .369 | 2015-2027 | |
| 25 | Ricky Payton# | .368 | 2027-2031 | |
| 26 | Dennis Clifton | .365 | 2021-2028 | |
| 27 | Roy Williams | .360 | 2019-2026 | |
| 28 | Jesús Álvarez# | .351 | 2023-2027 |
