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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | John McGraw | .5465 | 1899 | |
| 2 | John McGraw | .4860 | 1901 | |
| 3 | John McGraw | .4745 | 1898 | |
| 4 | John McGraw | .4700 | 1897 | |
| 5 | John McGraw | .4498 | 1894 | |
| 6 | Frank Baker# | .4448 | 1912 | |
| 7 | Heinie Zimmerman# | .4374 | 1912 | |
| 8 | George Davis | .4335 | 1894 | |
| 9 | Lave Cross | .4192 | 1894 | |
| 10 | Carlos Moran | .4189 | 1900 | |
| 11 | Jimmy Williams | .4167 | 1899 | |
| 12 | Morrie Rath# | .4154 | 1911 | |
| 13 | George Davis | .4151 | 1895 | |
| 14 | George Davis | .4086 | 1893 | |
| 15 | Frank Baker# | .4054 | 1914 | |
| 16 | Jimmy Collins | .3997 | 1897 | |
| 17 | Ray Morgan# | .3985 | 1914 | |
| 18 | Bill Everitt | .3973 | 1895 | |
| 19 | Frank Baker# | .3971 | 1915 | |
| 20 | Bill Bradley | .3957 | 1902 | |
| 21 | Bobby Wallace# | .3933 | 1897 | |
| 22 | Arlie Latham | .3916 | 1894 | |
| 23 | Frank Baker# | .3906 | 1913 | |
| 24 | Jimmy Collins | .3895 | 1901 | |
| 25 | Red Smith# | .3876 | 1912 | |
| 26 | Harry Steinfeldt | .3856 | 1903 | |
| 27 | Art Devlin | .3768 | 1905 | |
| 28 | Jimmy Collins | .3767 | 1898 | |
| 29 | Morrie Rath# | .3764 | 1912 | |
| 30 | Bill Bradley | .3752 | 1903 | |
| 31 | Sammy Strang | .3744 | 1903 | |
| 32 | Arlie Latham | .3733 | 1895 | |
| 33 | Hans Lobert# | .3728 | 1911 | |
| 34 | Heinie Groh# | .3724 | 1915 | |
| 34 | Carlos Moran | .3724 | 1899 | |
| 36 | Bobby Byrne# | .3722 | 1911 | |
| 37 | Arlie Latham | .3710 | 1891 | |
| 38 | Roger Bresnahan | .3700 | 1902 | |
| 38 | Red Smith# | .3700 | 1913 | |
| 40 | Harry Steinfeldt | .3698 | 1906 | |
| 40 | Buck Herzog# | .3698 | 1912 | |
| 42 | Hans Lobert# | .3682 | 1910 | |
| 43 | Art Devlin | .3678 | 1907 | |
| 44 | Jim Doyle | .3677 | 1911 | |
| 45 | Arlie Latham | .3672 | 1886 | |
| 46 | Arlie Latham | .3669 | 1893 | |
| 47 | Art Devlin | .3661 | 1909 | |
| 47 | Bill Everitt | .3661 | 1896 | |
| 47 | Buck Herzog# | .3661 | 1911 | |
| 50 | Kid Elberfeld | .3656 | 1911 | |
| 51 | Art Devlin | .3655 | 1906 | |
| 52 | Arlie Latham | .3652 | 1887 | |
| 53 | Tommy Leach# | .3651 | 1913 | |
| 54 | Kid Elberfeld | .3646 | 1912 | |
| 55 | Mike Mowrey# | .3630 | 1910 | |
| 56 | Frank Baker# | .3603 | 1911 | |
| 57 | Art Devlin | .3601 | 1910 | |
| 58 | Charlie Irwin | .3594 | 1897 | |
| 59 | Charlie Hickman | .3583 | 1900 | |
| 60 | Roy Hartzell# | .3579 | 1912 | |
| 61 | Heinie Zimmerman# | .3574 | 1914 | |
| 62 | Ernie Courtney | .3570 | 1905 | |
| 63 | Harry Steinfeldt | .3566 | 1905 | |
| 64 | Fritz Maisel# | .3564 | 1915 | |
| 65 | Bill Coughlin | .3558 | 1901 | |
| 66 | Mike Mowrey# | .3545 | 1911 | |
| 67 | Lave Cross | .3544 | 1901 | |
| 68 | Sammy Strang | .3537 | 1902 | |
| 69 | Heinie Zimmerman# | .3526 | 1913 | |
| 70 | Bill Sweeney | .3515 | 1911 | |
| 71 | Hans Lobert# | .3514 | 1914 | |
| 72 | Jimmy Collins | .3513 | 1900 | |
| 73 | Art Devlin | .3505 | 1904 | |
| 74 | Fred Hartman | .3496 | 1897 | |
| 75 | Harry Lord | .3482 | 1909 | |
| 76 | Bill Dahlen | .3472 | 1891 | |
| 77 | Lave Cross | .3471 | 1898 | |
| 78 | Fred Hartman | .3464 | 1901 | |
| 79 | Mike Mowrey# | .3452 | 1913 | |
| 80 | Frank Baker# | .3450 | 1909 | |
| 81 | Tommy Leach# | .3441 | 1908 | |
| 82 | Bobby Wallace# | .3434 | 1898 | |
| 83 | Jim Viox# | .3431 | 1912 | |
| 84 | Otto Krueger | .3425 | 1901 | |
| 85 | Harry Lord | .3411 | 1912 | |
| 86 | Mike Mowrey# | .3409 | 1914 | |
| 87 | Roy Hartzell# | .3398 | 1911 | |
| 88 | Larry Gardner# | .3395 | 1913 | |
| 88 | Todd Allen# | .3395 | 1912 | |
| 90 | Todd Allen# | .3393 | 1910 | |
| 91 | Buck Herzog# | .3389 | 1913 | |
| 92 | Bobby Byrne# | .3379 | 1909 | |
| 93 | Hans Lobert# | .3374 | 1913 | |
| 94 | Charlie Irwin | .3373 | 1896 | |
| 94 | Hans Lobert# | .3373 | 1912 | |
| 96 | Roy Hartzell# | .3364 | 1910 | |
| 97 | Art Phelan | .3362 | 1912 | |
| 98 | Tommy Sheehan | .3352 | 1908 | |
| 99 | Harry Steinfeldt | .3351 | 1902 | |
| 100 | Art Devlin | .3349 | 1908 |
