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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Leonard Ziegler | .6627 | 1877 | |
| 2 | Percy Kendrick# | .6472 | 1894 | |
| 3 | Percy Kendrick# | .6209 | 1895 | |
| 4 | Jean Beaulieu# | .5949 | 1894 | |
| 5 | Gene Styles# | .5888 | 1887 | |
| 6 | Alfred Graham# | .5734 | 1897 | |
| 7 | Alfred Graham# | .5594 | 1894 | |
| 8 | Alfred Graham# | .5567 | 1895 | |
| 8 | Percy Kendrick# | .5567 | 1896 | |
| 10 | Alfred Graham# | .5451 | 1896 | |
| 11 | Martin Callahan# | .5430 | 1885 | |
| 12 | Gene Neumann# | .5417 | 1889 | |
| 13 | Jean Beaulieu# | .5400 | 1893 | |
| 14 | Alfred Graham# | .5340 | 1898 | |
| 15 | Alfred Graham# | .5286 | 1893 | |
| 16 | Percy Kendrick# | .5265 | 1897 | |
| 17 | Gene Styles# | .5239 | 1886 | |
| 18 | Percy Kendrick# | .5213 | 1899 | |
| 19 | Percy Kendrick# | .5079 | 1898 | |
| 20 | Lou Kirchner# | .5019 | 1886 | |
| 21 | Nate Locke | .5000 | 1894 | |
| 22 | Gene Styles# | .4990 | 1894 | |
| 23 | Will Donovan | .4987 | 1882 | |
| 24 | Percy Kendrick# | .4929 | 1893 | |
| 25 | John Martin | .4918 | 1876 | |
| 26 | Percy Kendrick# | .4860 | 1889 | |
| 26 | Patrick O'Hanlon | .4860 | 1876 | |
| 28 | Alfred Graham# | .4858 | 1899 | |
| 29 | Percy Kendrick# | .4828 | 1891 | |
| 30 | Gene Deschamps# | .4812 | 1887 | |
| 31 | Tom Newcomb# | .4806 | 1890 | |
| 32 | Charley Boisvert# | .4781 | 1895 | |
| 33 | Walt Ray# | .4765 | 1893 | |
| 34 | Joe Watlington# | .4764 | 1894 | |
| 35 | Walt Ray# | .4754 | 1894 | |
| 36 | Gene Styles# | .4746 | 1897 | |
| 37 | Harry Whipple# | .4722 | 1899 | |
| 38 | Nate Locke | .4627 | 1895 | |
| 39 | Walt Ray# | .4615 | 1895 | |
| 40 | Jean Beaulieu# | .4563 | 1892 | |
| 41 | Walt Ray# | .4559 | 1898 | |
| 42 | Percy Kendrick# | .4554 | 1892 | |
| 42 | Joe Watlington# | .4554 | 1895 | |
| 44 | Joe Watlington# | .4542 | 1897 | |
| 45 | Dudley Lambert# | .4541 | 1899 | |
| 46 | Silas Keane# | .4529 | 1893 | |
| 47 | Gene Neumann# | .4437 | 1888 | |
| 48 | Gene Styles# | .4389 | 1888 | |
| 49 | Leonard Ziegler | .4388 | 1878 | |
| 50 | Ray Hayden# | .4372 | 1896 | |
| 51 | Gene Styles# | .4369 | 1890 | |
| 52 | Will Hobbs# | .4336 | 1894 | |
| 53 | Dudley Lambert# | .4304 | 1898 | |
| 54 | Oliver Westbrook | .4297 | 1890 | |
| 55 | Otis Watters# | .4282 | 1894 | |
| 56 | Gene Styles# | .4275 | 1891 | |
| 57 | Rabbit Sutton | .4272 | 1887 | |
| 58 | Charley Boisvert# | .4265 | 1896 | |
| 59 | Harry Whipple# | .4250 | 1896 | |
| 60 | Alfred Graham# | .4246 | 1891 | |
| 61 | Gene Neumann# | .4239 | 1892 | |
| 62 | Buck Sullivan# | .4228 | 1894 | |
| 63 | Patrick O'Hanlon | .4203 | 1877 | |
| 64 | Fred Parmelee# | .4183 | 1894 | |
| 65 | Otis Wentworth# | .4179 | 1882 | |
| 66 | Gene Styles# | .4170 | 1889 | |
| 67 | Nate Carruthers# | .4161 | 1896 | |
| 68 | Walt Ray# | .4160 | 1896 | |
| 69 | Gene Styles# | .4120 | 1893 | |
| 70 | Nate Locke | .4099 | 1896 | |
| 71 | Nate Carruthers# | .4092 | 1897 | |
| 72 | Otis Wentworth# | .4087 | 1881 | |
| 73 | Walt Ray# | .4081 | 1897 | |
| 74 | Tom Newcomb# | .4075 | 1891 | |
| 74 | Nate Locke | .4075 | 1892 | |
| 76 | Charley Boisvert# | .4069 | 1899 | |
| 77 | Tom Newcomb# | .4057 | 1889 | |
| 78 | Cal Ames | .4042 | 1882 | |
| 79 | Edgar Monroe | .4040 | 1885 | |
| 80 | Ray Lorenz# | .4025 | 1896 | |
| 81 | Edgar Monroe | .4021 | 1879 | |
| 82 | Al Lynn# | .4012 | 1884 | |
| 83 | Oscar Featherstone | .4010 | 1895 | |
| 84 | Cyrus Pittman | .4000 | 1878 | |
| 85 | Cyrus Pittman | .3994 | 1881 | |
| 86 | Charley Boisvert# | .3987 | 1898 | |
| 87 | Joe Watlington# | .3984 | 1891 | |
| 88 | Walt Paris# | .3958 | 1897 | |
| 89 | Walt Ray# | .3945 | 1899 | |
| 89 | Charley Boisvert# | .3945 | 1894 | |
| 91 | Silas Keane# | .3933 | 1892 | |
| 92 | Percy Kendrick# | .3929 | 1888 | |
| 93 | Jack Pinkerton | .3916 | 1877 | |
| 94 | Edgar Monroe | .3898 | 1884 | |
| 95 | Leonard Ziegler | .3894 | 1883 | |
| 96 | Nate Cavanagh# | .3881 | 1889 | |
| 96 | Ben Hyde | .3881 | 1879 | |
| 98 | Ray Lorenz# | .3832 | 1895 | |
| 99 | Charley Boisvert# | .3826 | 1893 | |
| 100 | Charley Boisvert# | .3815 | 1892 |
