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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Dan Madden# | .5113 | 1899 | |
| 2 | Tim Connaughton# | .4612 | 1899 | |
| 3 | Tom Mixon# | .4317 | 1899 | |
| 4 | Johnny Becker# | .4100 | 1899 | |
| 5 | Joe Martin# | .3937 | 1899 |
