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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Oscar Engel# | .4555 | 1889 | |
| 2 | Walt Harkness# | .4395 | 1884 | |
| 3 | Oscar Engel# | .4328 | 1890 | |
| 4 | Oscar Engel# | .4138 | 1887 | |
| 5 | Nate Hill# | .4104 | 1887 | |
| 6 | Walt Harkness# | .3970 | 1883 | |
| 7 | Harry Hall# | .3914 | 1884 | |
| 8 | Elmer Filer | .3894 | 1883 | |
| 9 | Frank Maher# | .3850 | 1887 | |
| 10 | Elmer Filer | .3769 | 1882 | |
| 11 | Frank Maher# | .3736 | 1886 | |
| 12 | George Rooney# | .3722 | 1890 | |
| 13 | George Rooney# | .3707 | 1886 | |
| 14 | Peter Bradley | .3656 | 1883 | |
| 15 | Walt Koenig# | .3582 | 1889 | |
| 16 | Oscar Engel# | .3579 | 1888 | |
| 17 | Frank Maher# | .3575 | 1884 | |
| 18 | George Rooney# | .3546 | 1888 | |
| 19 | Ram Page | .3539 | 1884 | |
| 20 | George Rooney# | .3515 | 1889 | |
| 21 | Oscar Engel# | .3508 | 1886 | |
| 22 | Lewis Netterville | .3491 | 1882 | |
| 23 | Walt Harkness# | .3476 | 1885 | |
| 24 | Mike Flynn# | .3383 | 1889 | |
| 25 | Abel Schmidt# | .3358 | 1884 | |
| 26 | Silas Hartley# | .3347 | 1886 | |
| 27 | Nate Hill# | .3333 | 1888 | |
| 27 | Peter Bradley | .3333 | 1885 | |
| 29 | George Rooney# | .3328 | 1887 | |
| 30 | Sam Richardson | .3301 | 1884 | |
| 31 | Vic VanAlstyne# | .3288 | 1884 | |
| 32 | Joe Cook | .3278 | 1886 | |
| 33 | Gene Kruger# | .3227 | 1889 | |
| 34 | Mike Davis | .3222 | 1887 | |
| 35 | Henri Bastien# | .3180 | 1890 | |
| 36 | Hugh McCray# | .3122 | 1890 | |
| 37 | Peter Bradley | .3090 | 1884 | |
| 38 | Fred Wilkins# | .3075 | 1887 | |
| 39 | Mike Davis | .3052 | 1886 | |
| 40 | Frank Maher# | .3043 | 1888 | |
| 41 | Steve Benham# | .3034 | 1889 | |
| 42 | Mike Davis | .3015 | 1888 | |
| 43 | Sam Lovette | .2943 | 1888 | |
| 44 | Percy Fretwell# | .2927 | 1890 | |
| 45 | Charlie Earle | .2924 | 1885 | |
| 46 | Frank Maher# | .2912 | 1883 | |
| 47 | James Johnson | .2911 | 1886 | |
| 48 | Steve Benham# | .2910 | 1890 | |
| 49 | Nate Hill# | .2907 | 1889 | |
| 50 | Percy Fretwell# | .2893 | 1889 | |
| 51 | Len Cooper | .2827 | 1887 | |
| 52 | Sam Richardson | .2775 | 1885 | |
| 53 | Abel Schmidt# | .2757 | 1883 | |
| 54 | Hal Simon# | .2754 | 1890 | |
| 55 | Oscar Featherstone# | .2712 | 1883 | |
| 56 | Gene Kruger# | .2683 | 1888 | |
| 57 | Joe Cook | .2667 | 1885 | |
| 58 | Dan Hawley# | .2660 | 1883 | |
| 59 | Frank Maher# | .2600 | 1885 | |
| 60 | Joe Cook | .2584 | 1887 | |
| 61 | Tom Moran# | .2566 | 1885 | |
| 62 | Joe Amaker | .2564 | 1884 | |
| 63 | Len Cooper | .2410 | 1888 | |
| 64 | Tim Clements | .2362 | 1882 | |
| 65 | Tommy Avery | .2361 | 1882 | |
| 66 | Lewis Netterville | .2343 | 1883 | |
| 67 | Steve Neal# | .2226 | 1890 | |
| 68 | Oscar Featherstone# | .2070 | 1884 | |
| 69 | Hiram Neely# | .1856 | 1882 | |
| 70 | Bill Miller | .1533 | 1882 |
