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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Charley Mertens# | .4158 | 1890 | |
| 2 | Clar Tate# | .3387 | 1890 | |
| 3 | Gene Kruger# | .3382 | 1890 | |
| 4 | Silas Hartley# | .3357 | 1890 | |
| 5 | Walt Koenig# | .3333 | 1890 | |
| 6 | Frank Maher# | .3048 | 1890 | |
| 7 | Steve Airington | .2960 | 1890 | |
| 8 | Len Dales# | .2100 | 1890 |
