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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Lou Jewett# | .7070 | 1891 | |
| 2 | Silas Keane | .6703 | 1886 | |
| 3 | Bob James | .6658 | 1885 | |
| 4 | Ed Monahan | .6403 | 1886 | |
| 5 | Alfred Poirier | .6378 | 1886 | |
| 6 | Sam Tilden# | .6308 | 1897 | |
| 7 | Nate Hill | .6096 | 1885 | |
| 8 | Ike Holman | .6084 | 1886 | |
| 9 | Ray Kearney | .6071 | 1891 | |
| 10 | Ned Flannery# | .5991 | 1899 | |
| 11 | Will Tucker | .5974 | 1893 | |
| 12 | Joe Watlington | .5908 | 1886 | |
| 13 | Rufus Thomas | .5884 | 1895 | |
| 14 | Rufus Thomas | .5877 | 1898 | |
| 15 | Bobby Vasser | .5845 | 1886 | |
| 16 | Sam Tilden# | .5817 | 1898 | |
| 17 | Sam Tilden# | .5812 | 1899 | |
| 18 | Milton Beach | .5736 | 1885 | |
| 19 | Rufus Thomas | .5727 | 1891 | |
| 20 | Rufus Thomas | .5706 | 1892 | |
| 21 | Ed Treadwell | .5650 | 1891 | |
| 22 | Sam Tilden# | .5640 | 1896 | |
| 23 | Rufus Thomas | .5634 | 1899 | |
| 24 | Patsy Fitzgerald# | .5626 | 1901 | |
| 25 | Tim Lemessurier | .5624 | 1891 | |
| 26 | Sam Buteau | .5621 | 1890 | |
| 27 | Silas Allen | .5585 | 1888 | |
| 28 | Rufus Thomas | .5541 | 1901 | |
| 29 | Denny McClister | .5516 | 1899 | |
| 30 | Silas Allen | .5504 | 1885 | |
| 31 | Doc Coughlin# | .5476 | 1905 | |
| 32 | Rufus Thomas | .5465 | 1894 | |
| 33 | Oscar Curley | .5450 | 1888 | |
| 34 | Otis Dalton | .5447 | 1892 | |
| 35 | Elmer Selders | .5437 | 1888 | |
| 36 | Oscar Curley | .5426 | 1887 | |
| 37 | Andy Stanhope | .5416 | 1891 | |
| 38 | Frank Hunter# | .5412 | 1899 | |
| 39 | Walt McGee | .5408 | 1896 | |
| 40 | Lou Staten | .5397 | 1888 | |
| 41 | Tim Lemessurier | .5390 | 1892 | |
| 42 | Tim Lemessurier | .5381 | 1894 | |
| 43 | Bob James | .5372 | 1886 | |
| 44 | Oscar Curley | .5366 | 1886 | |
| 45 | Denny McClister | .5361 | 1900 | |
| 46 | Nate Vaughn | .5359 | 1891 | |
| 47 | George Tremblay | .5355 | 1885 | |
| 48 | Rufus Thomas | .5354 | 1893 | |
| 49 | Oscar Kirby | .5335 | 1887 | |
| 50 | Art Clapp | .5301 | 1891 | |
| 51 | Silas Allen | .5293 | 1884 | |
| 52 | Terry Sanders# | .5272 | 1903 | |
| 53 | Oscar Kirby | .5243 | 1885 | |
| 53 | Will Tucker | .5243 | 1892 | |
| 55 | Dan Madden | .5238 | 1893 | |
| 55 | Charles Brown | .5238 | 1888 | |
| 57 | Rufus Thomas | .5213 | 1884 | |
| 58 | Rufus Thomas | .5202 | 1897 | |
| 59 | Ed Treadwell | .5200 | 1886 | |
| 60 | Rufus Thomas | .5183 | 1900 | |
| 61 | Ed Treadwell | .5167 | 1887 | |
| 62 | Bob James | .5160 | 1884 | |
| 63 | Oscar Kirby | .5152 | 1891 | |
| 64 | Nate Vaughn | .5132 | 1886 | |
| 65 | Roy Forsyth | .5129 | 1886 | |
| 66 | Patsy Fitzgerald# | .5119 | 1899 | |
| 67 | Mike Sullivan# | .5115 | 1898 | |
| 67 | John McLaurin | .5115 | 1886 | |
| 67 | Roy Bledsoe | .5115 | 1892 | |
| 70 | Dan Madden | .5113 | 1899 | |
| 71 | George Denius | .5111 | 1899 | |
| 72 | Frank Hunter# | .5108 | 1898 | |
| 73 | John McLaurin | .5105 | 1885 | |
| 74 | Otis Dalton | .5091 | 1884 | |
| 75 | Lou Staten | .5086 | 1886 | |
| 76 | George Duncan | .5065 | 1893 | |
| 77 | Paul Auger# | .5050 | 1901 | |
| 78 | Oscar Foster | .5045 | 1891 | |
| 79 | Tom Osborn# | .5043 | 1901 | |
| 79 | Milton Beach | .5043 | 1893 | |
| 81 | Sam Buteau | .5042 | 1891 | |
| 82 | Walt McGee | .5040 | 1891 | |
| 83 | Dan Moriarty# | .5039 | 1898 | |
| 84 | Art Clapp | .5038 | 1892 | |
| 84 | Mike Sullivan# | .5038 | 1900 | |
| 86 | Nate Hauser | .5031 | 1892 | |
| 87 | Walt Dupuis | .5022 | 1891 | |
| 88 | Hank Cronin | .5021 | 1892 | |
| 89 | Mike Sullivan# | .5013 | 1899 | |
| 90 | Emanuel Loftin | .5010 | 1888 | |
| 91 | Joe Osborn | .5000 | 1891 | |
| 91 | George O'Brien# | .5000 | 1907 | |
| 93 | Walt McGee | .4991 | 1892 | |
| 94 | Bunk Donnelly# | .4987 | 1901 | |
| 95 | Dan Hawley | .4984 | 1886 | |
| 96 | Ray Sears | .4965 | 1891 | |
| 97 | Matt Steele# | .4955 | 1904 | |
| 98 | Art Clapp | .4954 | 1894 | |
| 98 | Ray Simmons | .4954 | 1886 | |
| 100 | Dave Zimmerman# | .4941 | 1907 |
