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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Charley Mertens# | .8052 | 1890 | |
| 2 | Gene Kruger# | .7358 | 1890 | |
| 3 | Walt Koenig# | .7178 | 1890 | |
| 4 | Clar Tate# | .6866 | 1890 | |
| 5 | Silas Hartley# | .6015 | 1890 | |
| 6 | Frank Maher# | .5908 | 1890 | |
| 7 | Steve Airington | .5866 | 1890 | |
| 8 | Len Dales# | .3855 | 1890 |
