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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Charles Brown | .5364 | 1888 | |
| 2 | Tom Sidberry | .5230 | 1894 | |
| 3 | Bob James | .5148 | 1885 | |
| 4 | Silas Keane | .5059 | 1886 | |
| 5 | Tom Sidberry | .5009 | 1893 | |
| 6 | Ike Holman | .4975 | 1886 | |
| 7 | Ed Monahan | .4967 | 1886 | |
| 8 | Nate Hill | .4936 | 1885 | |
| 9 | Tom Sidberry | .4925 | 1895 | |
| 10 | Silas Allen | .4881 | 1885 | |
| 11 | Charles William | .4821 | 1886 | |
| 12 | Otis Dalton | .4816 | 1898 | |
| 13 | Tom Sidberry | .4806 | 1897 | |
| 14 | Hank Cronin | .4793 | 1892 | |
| 15 | Otis Dalton | .4784 | 1895 | |
| 16 | Tom Sidberry | .4780 | 1898 | |
| 17 | Tom Sidberry | .4779 | 1896 | |
| 18 | Lou Jewett# | .4743 | 1891 | |
| 19 | Otis Dalton | .4737 | 1900 | |
| 20 | Roy Bledsoe | .4716 | 1892 | |
| 21 | Hank Chisholm | .4696 | 1896 | |
| 22 | Charles William | .4667 | 1885 | |
| 23 | Otis Dalton | .4657 | 1893 | |
| 24 | Theo Hanrahan | .4655 | 1886 | |
| 25 | Roy Bledsoe | .4635 | 1893 | |
| 26 | Ned Flannery# | .4627 | 1899 | |
| 27 | Tom Sidberry | .4622 | 1892 | |
| 28 | Hank Cronin | .4608 | 1893 | |
| 29 | Peter Bradley | .4604 | 1888 | |
| 30 | Nate Hauser | .4590 | 1896 | |
| 31 | Emanuel Loftin | .4583 | 1888 | |
| 32 | Theo Hanrahan | .4582 | 1885 | |
| 33 | Rufus Thomas | .4579 | 1895 | |
| 34 | Sam Tilden# | .4566 | 1897 | |
| 35 | Mike Sullivan# | .4530 | 1899 | |
| 36 | Joe Watlington | .4527 | 1886 | |
| 37 | Sam Tilden# | .4526 | 1898 | |
| 38 | Frank Hunter# | .4525 | 1899 | |
| 39 | Silas Hartley | .4523 | 1896 | |
| 40 | Otis Dalton | .4506 | 1896 | |
| 41 | Mike Sullivan# | .4501 | 1898 | |
| 42 | Mike Sullivan# | .4495 | 1901 | |
| 43 | Denny McClister | .4493 | 1900 | |
| 44 | Tim Lemessurier | .4486 | 1894 | |
| 45 | Nate Hauser | .4459 | 1893 | |
| 46 | Andy Stanhope | .4455 | 1896 | |
| 47 | Otis Dalton | .4453 | 1884 | |
| 48 | Dan Moriarty# | .4451 | 1900 | |
| 48 | Tim Lemessurier | .4451 | 1893 | |
| 50 | Alfred Poirier | .4446 | 1886 | |
| 51 | Oscar Curley | .4441 | 1887 | |
| 51 | Otis Dalton | .4441 | 1892 | |
| 53 | Nate Hauser | .4437 | 1892 | |
| 54 | Silas Hartley | .4428 | 1900 | |
| 55 | Hank Chisholm | .4426 | 1895 | |
| 56 | Charles William | .4424 | 1887 | |
| 57 | George Tremblay | .4422 | 1885 | |
| 58 | Joe Osborn | .4416 | 1891 | |
| 59 | Ed Monahan | .4412 | 1885 | |
| 60 | George Duncan | .4409 | 1893 | |
| 61 | Otis Dalton | .4402 | 1897 | |
| 62 | Joe Osborn | .4390 | 1898 | |
| 63 | Tom Sidberry | .4379 | 1899 | |
| 64 | Joe Osborn | .4375 | 1899 | |
| 65 | Joe Osborn | .4374 | 1892 | |
| 65 | Silas Hartley | .4374 | 1893 | |
| 67 | Mike Sullivan# | .4367 | 1900 | |
| 68 | Bob James | .4365 | 1886 | |
| 69 | Dan Moriarty# | .4364 | 1898 | |
| 70 | Silas Hartley | .4362 | 1899 | |
| 71 | Rufus Thomas | .4357 | 1898 | |
| 72 | Nate Hauser | .4348 | 1895 | |
| 73 | Andy Stanhope | .4344 | 1899 | |
| 74 | Milton Beach | .4338 | 1893 | |
| 75 | Hank Cronin | .4336 | 1894 | |
| 76 | Oscar Kirby | .4333 | 1885 | |
| 77 | Milton Beach | .4331 | 1885 | |
| 78 | Nate Hauser | .4326 | 1894 | |
| 79 | Frank Hunter# | .4323 | 1900 | |
| 80 | Joe Osborn | .4322 | 1900 | |
| 81 | Charlie Rodgers | .4315 | 1886 | |
| 82 | Al Lynn | .4310 | 1900 | |
| 82 | Alan Caldwell | .4310 | 1886 | |
| 84 | Ike Radcliffe | .4304 | 1886 | |
| 85 | John McLaurin | .4294 | 1886 | |
| 86 | Otis Bey | .4291 | 1893 | |
| 86 | Will Daniels | .4291 | 1887 | |
| 88 | Bob James | .4282 | 1884 | |
| 89 | Silas Allen | .4272 | 1884 | |
| 90 | Lou Staten | .4266 | 1887 | |
| 91 | Tom Sidberry | .4249 | 1891 | |
| 92 | Chester MacDonald | .4248 | 1896 | |
| 93 | Lou Lindley | .4242 | 1885 | |
| 94 | Otis Dalton | .4238 | 1901 | |
| 95 | Al Lynn | .4237 | 1891 | |
| 96 | Andy Stanhope | .4235 | 1897 | |
| 97 | Al Lynn | .4233 | 1898 | |
| 98 | Art Clapp | .4232 | 1892 | |
| 99 | Will Daniels | .4228 | 1886 | |
| 99 | Ray Kearney | .4228 | 1891 |
