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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Guillermo Romero | .5505 | 2013-2021 | |
| 2 | Michael Greene* | .5325 | 2013-2026 | |
| 3 | Ai-de Lau# | .5173 | 2046-2053 | |
| 4 | Tommy Jones* | .4889 | 2015-2036 | |
| 5 | Curt Phillips | .4756 | 2014-2020 | |
| 6 | Ruud van Ineveld* | .4702 | 2027-2044 | |
| 7 | Lung Chaim# | .4663 | 2040-2053 | |
| 8 | Tom Smythe# | .4653 | 2037-2054 | |
| 9 | Marcos Janero# | .4568 | 2043-2054 | |
| 10 | Chris Gregory | .4548 | 2016-2027 | |
| 11 | Osvaldo Ardiles# | .4375 | 2045-2053 | |
| 12 | Naganori Inoue# | .4177 | 2042-2054 | |
| 13 | David Henderson | .4047 | 2018-2026 | |
| 14 | Cale Sutton | .3953 | 2015-2032 | |
| 15 | Willie McGirt | .3913 | 2029-2042 | |
| 16 | Pedro Morales | .3826 | 2018-2028 | |
| 17 | Chi-ju Zhang | .3716 | 2019-2028 | |
| 18 | Yu-shu Kang | .3631 | 2034-2043 | |
| 19 | Eduardo Álvarez | .3598 | 2024-2033 | |
| 20 | Alberto Enríquez | .3373 | 2023-2030 |
