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| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Otis Wentworth | .4385 | 1878-1903 | |
| 2 | Cal Middleton | .4377 | 1880-1900 | |
| 3 | Art Brogan# | .4141 | 1892-1907 | |
| 4 | Elmer Aubert | .4022 | 1885-1904 | |
| 5 | Oliver Menzies | .3965 | 1891-1905 | |
| 6 | Elmer McKinzy | .3762 | 1885-1903 | |
| 7 | Nate Galvin | .3745 | 1887-1905 | |
| 8 | Jean Beckwith# | .3577 | 1890-1907 | |
| 9 | Cornelius Quimby | .3519 | 1878-1897 | |
| 10 | Otto Keating | .3514 | 1888-1905 | |
| 11 | Chester Noonan | .3482 | 1884-1899 | |
| 12 | Ed Monahan | .3463 | 1887-1905 | |
| 13 | George Ammons# | .3450 | 1901-1907 | |
| 14 | Kid O'Neil# | .3153 | 1901-1907 | |
| 15 | Claude Heaton | .3152 | 1889-1906 | |
| 16 | Chester Ashby# | .3144 | 1892-1899 | |
| 17 | Vic Nesbitt# | .3138 | 1890-1907 |
