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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ed Dietrich# | .5913 | 1898 | |
| 2 | Cal Hoffmann# | .5653 | 1882 | |
| 3 | Ed Moffitt | .5622 | 1883 | |
| 4 | Will Marsh# | .5308 | 1890 | |
| 5 | Pete Kingsbury# | .5179 | 1894 | |
| 6 | Roger Frace | .5110 | 1876 | |
| 7 | Ed Dietrich# | .5000 | 1899 | |
| 8 | Cal Hoffmann# | .4947 | 1884 | |
| 9 | Charlie Dozier | .4930 | 1879 | |
| 10 | George Maroney# | .4837 | 1894 | |
| 11 | Will Marsh# | .4835 | 1896 | |
| 12 | Alfred Dwyer# | .4795 | 1894 | |
| 13 | Pete Kingsbury# | .4791 | 1896 | |
| 14 | George Maroney# | .4685 | 1895 | |
| 15 | Elmer Sparks# | .4669 | 1895 | |
| 16 | Pete Kingsbury# | .4621 | 1895 | |
| 17 | Pete Kingsbury# | .4620 | 1899 | |
| 18 | Ed Moffitt | .4581 | 1881 | |
| 19 | Will Marsh# | .4577 | 1899 | |
| 20 | Paul Ripley# | .4541 | 1894 | |
| 21 | Ed Moffitt | .4529 | 1887 | |
| 22 | Dan Moriarty# | .4493 | 1894 | |
| 23 | Edgar Woodard | .4488 | 1885 | |
| 24 | Pete Kingsbury# | .4481 | 1893 | |
| 25 | John Cheatom | .4460 | 1877 | |
| 26 | Pete Kingsbury# | .4441 | 1898 | |
| 27 | Elmer Sparks# | .4409 | 1894 | |
| 28 | Will Marsh# | .4398 | 1895 | |
| 29 | Will Marsh# | .4390 | 1891 | |
| 30 | David Hudson# | .4366 | 1896 | |
| 31 | Edgar Woodard | .4362 | 1897 | |
| 32 | Alfred Dwyer# | .4357 | 1897 | |
| 32 | Edgar Woodard | .4357 | 1889 | |
| 34 | George Maroney# | .4353 | 1893 | |
| 35 | Will Marsh# | .4344 | 1897 | |
| 36 | Alfred Dwyer# | .4325 | 1895 | |
| 37 | Edgar Woodard | .4309 | 1884 | |
| 38 | Tom Gagnon | .4306 | 1880 | |
| 39 | Elmer Sparks# | .4301 | 1896 | |
| 40 | Paul Ripley# | .4271 | 1895 | |
| 40 | Will Hobbs# | .4271 | 1899 | |
| 42 | David Hudson# | .4261 | 1895 | |
| 43 | Ed Stark# | .4240 | 1890 | |
| 44 | George Maroney# | .4234 | 1891 | |
| 45 | Elmer Sparks# | .4218 | 1892 | |
| 46 | Ed Moffitt | .4216 | 1882 | |
| 47 | Cal Hoffmann# | .4214 | 1887 | |
| 48 | Alfred Dwyer# | .4212 | 1899 | |
| 49 | Cornelius Quimby | .4188 | 1883 | |
| 50 | George Maroney# | .4172 | 1897 | |
| 51 | Will Marsh# | .4169 | 1894 | |
| 52 | Rufus Smiley | .4122 | 1879 | |
| 53 | Will Hobbs# | .4121 | 1897 | |
| 54 | Edgar Woodard | .4118 | 1894 | |
| 55 | David Hudson# | .4112 | 1897 | |
| 56 | Paul Bell | .4111 | 1878 | |
| 57 | David Hudson# | .4108 | 1891 | |
| 58 | Edgar Woodard | .4103 | 1886 | |
| 58 | John Martin | .4103 | 1885 | |
| 60 | John Martin | .4094 | 1887 | |
| 61 | David Hudson# | .4071 | 1899 | |
| 62 | Ed Moffitt | .4064 | 1880 | |
| 63 | Al Chatman# | .4057 | 1889 | |
| 64 | Alfred Dwyer# | .4030 | 1893 | |
| 65 | David Hudson# | .4022 | 1894 | |
| 66 | Paul Ripley# | .4017 | 1898 | |
| 67 | Edgar Woodard | .4005 | 1883 | |
| 68 | Charles Underwood | .3991 | 1883 | |
| 69 | Elmer Sparks# | .3990 | 1891 | |
| 70 | Harry Ducharme# | .3984 | 1897 | |
| 71 | Cal Hoffmann# | .3978 | 1886 | |
| 72 | Will Hobbs# | .3958 | 1893 | |
| 73 | Elmer Sparks# | .3953 | 1890 | |
| 74 | Denny Reardon# | .3949 | 1891 | |
| 75 | Ed Moffitt | .3941 | 1886 | |
| 76 | Hiram Neely | .3939 | 1879 | |
| 77 | David Hudson# | .3935 | 1893 | |
| 78 | Dan Mitchell# | .3931 | 1889 | |
| 79 | Alfred Dwyer# | .3907 | 1898 | |
| 79 | Edgar Woodard | .3907 | 1895 | |
| 81 | Dan Moriarty# | .3890 | 1895 | |
| 82 | Dan Moriarty# | .3889 | 1890 | |
| 83 | Paul Ripley# | .3879 | 1897 | |
| 84 | Cal Jones | .3864 | 1881 | |
| 85 | Denny Reardon# | .3860 | 1896 | |
| 86 | Charles Underwood | .3836 | 1884 | |
| 87 | Edgar Woodard | .3832 | 1888 | |
| 88 | Cal Hoffmann# | .3826 | 1883 | |
| 89 | Alfred Dwyer# | .3805 | 1896 | |
| 90 | Will Hobbs# | .3793 | 1898 | |
| 91 | Paul Ripley# | .3729 | 1893 | |
| 92 | Harry Ducharme# | .3717 | 1899 | |
| 93 | Al Sanderson | .3694 | 1878 | |
| 93 | Henry Tegtmeyer | .3694 | 1880 | |
| 95 | Ephraim Gallagher | .3683 | 1886 | |
| 96 | Cal Hoffmann# | .3680 | 1889 | |
| 97 | Dan Moriarty# | .3677 | 1886 | |
| 98 | David Hudson# | .3672 | 1892 | |
| 99 | Bob Moore | .3655 | 1877 | |
| 100 | Will Marsh# | .3654 | 1898 |
