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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Juan Agreda | .4941 | 2026-2034 | |
| 2 | Juan Castro | .4915 | 2017-2028 | |
| 3 | Bing-zhong He# | .4653 | 2036-2051 | |
| 4 | Sancho Sánchez | .3808 | 2039-2049 |
