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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Rudy Crawford# | .4488 | 1907 | |
| 2 | Ted Short# | .4282 | 1907 | |
| 3 | Elmer Freeman# | .3206 | 1907 | |
| 4 | Dick Holbert# | .3052 | 1907 | |
| 5 | William Lawrence# | .2989 | 1907 | |
| 6 | Frank Channing# | .2860 | 1907 | |
| 7 | Joe Humphrey# | .2797 | 1907 | |
| 8 | Percy Gamble# | .2434 | 1907 |
