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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Nate Hauser# | .8414 | 1890 | |
| 2 | Rufus Thomas# | .7666 | 1890 | |
| 3 | Ed Treadwell# | .7574 | 1890 | |
| 4 | Oscar Foster# | .7181 | 1890 | |
| 5 | Nate Vaughn# | .7125 | 1890 | |
| 6 | Dan Theobald# | .7032 | 1890 | |
| 7 | Baptiste Cameron# | .6597 | 1890 |
