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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Oliver Fulmore# | .4261 | 1899 | |
| 2 | Len Frederick# | .4200 | 1899 | |
| 3 | Bernard Cooper# | .4198 | 1899 | |
| 4 | Jan Van Houten# | .4060 | 1899 | |
| 5 | Tom Chatman# | .4056 | 1899 | |
| 6 | Ed Tilden# | .3282 | 1899 | |
| 7 | Charles Block# | .3126 | 1899 | |
| 8 | Al Mallon# | .3079 | 1899 |
