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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ed Dietrich# | .6199 | 1901 | |
| 2 | Ed Dietrich# | .5913 | 1898 | |
| 3 | Cal Hoffmann | .5653 | 1882 | |
| 4 | Ed Moffitt | .5622 | 1883 | |
| 5 | Ed Dietrich# | .5543 | 1900 | |
| 6 | Ed Dietrich# | .5493 | 1903 | |
| 7 | Will Marsh# | .5308 | 1890 | |
| 8 | Pete Kingsbury# | .5179 | 1894 | |
| 9 | Ed Dietrich# | .5145 | 1902 | |
| 10 | Roger Frace | .5110 | 1876 | |
| 11 | Ed Dietrich# | .5059 | 1905 | |
| 12 | Ed Dietrich# | .5000 | 1899 | |
| 13 | Cal Hoffmann | .4947 | 1884 | |
| 14 | Ed Dietrich# | .4944 | 1904 | |
| 15 | Charlie Dozier | .4930 | 1879 | |
| 16 | George Maroney | .4837 | 1894 | |
| 17 | Will Marsh# | .4835 | 1896 | |
| 18 | Alfred Dwyer | .4795 | 1894 | |
| 19 | Pete Kingsbury# | .4791 | 1896 | |
| 20 | Pete Kingsbury# | .4719 | 1901 | |
| 21 | Pete Kingsbury# | .4694 | 1900 | |
| 22 | George Maroney | .4685 | 1895 | |
| 23 | Elmer Sparks | .4669 | 1895 | |
| 24 | Pete Kingsbury# | .4621 | 1895 | |
| 25 | Pete Kingsbury# | .4620 | 1899 | |
| 26 | Ed Moffitt | .4581 | 1881 | |
| 27 | Will Marsh# | .4577 | 1899 | |
| 28 | Paul Ripley | .4541 | 1894 | |
| 29 | Ed Moffitt | .4529 | 1887 | |
| 30 | John Underwood# | .4510 | 1905 | |
| 31 | Dan Moriarty | .4493 | 1894 | |
| 32 | Edgar Woodard | .4488 | 1885 | |
| 33 | Pete Kingsbury# | .4481 | 1893 | |
| 34 | John Cheatom | .4460 | 1877 | |
| 35 | Abner Channing# | .4451 | 1900 | |
| 36 | Pete Kingsbury# | .4444 | 1903 | |
| 37 | Pete Kingsbury# | .4441 | 1898 | |
| 38 | Elmer Sparks | .4409 | 1894 | |
| 39 | Abner Channing# | .4399 | 1901 | |
| 40 | Will Marsh# | .4398 | 1895 | |
| 41 | Will Marsh# | .4390 | 1891 | |
| 42 | David Hudson | .4366 | 1896 | |
| 43 | Edgar Woodard | .4362 | 1897 | |
| 44 | Alfred Dwyer | .4357 | 1897 | |
| 44 | Edgar Woodard | .4357 | 1889 | |
| 46 | George Maroney | .4353 | 1893 | |
| 47 | Will Marsh# | .4344 | 1897 | |
| 48 | Alfred Dwyer | .4325 | 1895 | |
| 49 | Edgar Woodard | .4309 | 1884 | |
| 50 | Tom Gagnon | .4306 | 1880 | |
| 51 | Elmer Sparks | .4301 | 1896 | |
| 52 | Mickey Dahlberg# | .4277 | 1907 | |
| 53 | Paul Ripley | .4271 | 1895 | |
| 53 | Will Hobbs | .4271 | 1899 | |
| 55 | David Hudson | .4261 | 1895 | |
| 56 | Ed Stark | .4240 | 1890 | |
| 57 | Mickey Dahlberg# | .4235 | 1905 | |
| 58 | George Maroney | .4234 | 1891 | |
| 59 | Elmer Sparks | .4218 | 1892 | |
| 59 | Pete Kingsbury# | .4218 | 1904 | |
| 61 | Ed Moffitt | .4216 | 1882 | |
| 62 | Cal Hoffmann | .4214 | 1887 | |
| 63 | Alfred Dwyer | .4212 | 1899 | |
| 64 | Cornelius Quimby | .4188 | 1883 | |
| 65 | George Maroney | .4172 | 1897 | |
| 66 | Will Marsh# | .4169 | 1894 | |
| 67 | Rufus Smiley | .4122 | 1879 | |
| 68 | Will Hobbs | .4121 | 1897 | |
| 69 | Joe Farley# | .4118 | 1905 | |
| 69 | Edgar Woodard | .4118 | 1894 | |
| 71 | David Hudson | .4112 | 1897 | |
| 72 | Paul Bell | .4111 | 1878 | |
| 73 | David Hudson | .4108 | 1891 | |
| 74 | John Underwood# | .4107 | 1904 | |
| 75 | Edgar Woodard | .4103 | 1886 | |
| 75 | John Martin | .4103 | 1885 | |
| 77 | John Martin | .4094 | 1887 | |
| 78 | David Hudson | .4071 | 1899 | |
| 79 | Ed Moffitt | .4064 | 1880 | |
| 80 | Al Chatman# | .4057 | 1889 | |
| 81 | Alfred Dwyer | .4030 | 1893 | |
| 82 | David Hudson | .4022 | 1894 | |
| 83 | David Hudson | .4019 | 1900 | |
| 84 | Paul Ripley | .4017 | 1898 | |
| 85 | Edgar Woodard | .4005 | 1883 | |
| 86 | Pete Kingsbury# | .4004 | 1902 | |
| 87 | Charles Underwood | .3991 | 1883 | |
| 88 | John Underwood# | .3990 | 1906 | |
| 88 | Elmer Sparks | .3990 | 1891 | |
| 90 | Harry Ducharme# | .3984 | 1897 | |
| 91 | Cal Hoffmann | .3978 | 1886 | |
| 91 | Will Marsh# | .3978 | 1902 | |
| 93 | Ed Dietrich# | .3969 | 1906 | |
| 94 | Will Hobbs | .3958 | 1893 | |
| 95 | Mickey Dahlberg# | .3955 | 1904 | |
| 96 | Elmer Sparks | .3953 | 1890 | |
| 97 | Denny Reardon | .3949 | 1891 | |
| 98 | Pete Kingsbury# | .3941 | 1905 | |
| 98 | Ed Moffitt | .3941 | 1886 | |
| 100 | Hiram Neely | .3939 | 1879 |
