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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | John Hill | .4440 | 2016 | |
| 2 | Juan Jose Ayala | .4434 | 2031 | |
| 3 | António Martínez* | .4093 | 2027 | |
| 4 | Bob Campbell | .4065 | 2018 | |
| 5 | Juan Andrés Martí# | .4049 | 2045 | |
| 6 | Eustacio Tafalla# | .4017 | 2034 | |
| 7 | Tamasaburo Kato* | .4008 | 2028 | |
| 8 | David Edwards | .4004 | 2023 | |
| 9 | Eisse van Opdorp# | .4000 | 2042 | |
| 10 | Tamasaburo Kato* | .3995 | 2025 | |
| 11 | Juan Andrés Martí# | .3980 | 2041 | |
| 12 | Yu-zeng Si | .3946 | 2034 | |
| 13 | Jonas van Claveren# | .3918 | 2044 | |
| 14 | Ray Sears* | .3912 | 2016 | |
| 15 | Arturo Rodríguez | .3905 | 2031 | |
| 16 | Ray Sears* | .3887 | 2017 | |
| 17 | Juan Andrés Martí# | .3861 | 2040 | |
| 18 | Pedro Willis | .3843 | 2016 | |
| 19 | Ray Sears* | .3835 | 2015 | |
| 20 | Herman Hayes | .3817 | 2021 | |
| 20 | Brian O'Brian | .3817 | 2013 | |
| 22 | Melvin Thomas# | .3802 | 2043 | |
| 23 | Rômulo Caho | .3790 | 2014 | |
| 23 | David Edwards | .3790 | 2022 | |
| 25 | Pedro Willis | .3786 | 2013 | |
| 26 | Yu-zeng Si | .3765 | 2035 | |
| 27 | Mark Toope# | .3763 | 2045 | |
| 28 | Juan Jose Ayala | .3725 | 2030 | |
| 28 | Tamasaburo Kato* | .3725 | 2034 | |
| 30 | Melvin Thomas# | .3723 | 2039 | |
| 31 | Tamasaburo Kato* | .3722 | 2033 | |
| 32 | Ashley Thachi | .3704 | 2037 | |
| 33 | Arturo Rodríguez | .3700 | 2030 | |
| 34 | Robert Shelby | .3696 | 2014 | |
| 35 | António Martínez* | .3679 | 2036 | |
| 36 | António Martínez* | .3672 | 2029 | |
| 37 | Richard Jost | .3668 | 2042 | |
| 38 | Leonard O'Connor | .3660 | 2017 | |
| 38 | Jorge Alejándrez | .3660 | 2036 | |
| 40 | Nate Cates | .3644 | 2022 | |
| 41 | Nate Cates | .3631 | 2021 | |
| 41 | António Macías# | .3631 | 2042 | |
| 43 | Sake van Arem | .3630 | 2032 | |
| 44 | Mike Ríos# | .3620 | 2045 | |
| 45 | António Martínez* | .3617 | 2028 | |
| 46 | Melvin Thomas# | .3615 | 2040 | |
| 47 | Billy Dotson | .3611 | 2039 | |
| 48 | Lautaro Lacasa# | .3600 | 2044 | |
| 49 | Sake van Arem | .3597 | 2034 | |
| 50 | Orlando Velásquez | .3580 | 2036 | |
| 51 | Ray Sears* | .3576 | 2021 | |
| 52 | António Macías# | .3574 | 2043 | |
| 53 | Ray Sears* | .3573 | 2018 | |
| 54 | Lautaro Lacasa# | .3570 | 2043 | |
| 55 | Bob Campbell | .3563 | 2022 | |
| 56 | Billy Dotson | .3542 | 2038 | |
| 57 | Hugh Mungus | .3538 | 2030 | |
| 58 | Ed Hopkins | .3536 | 2019 | |
| 59 | Hugh Mungus | .3517 | 2034 | |
| 60 | Sake van Arem | .3504 | 2037 | |
| 61 | Guillermo Coss | .3501 | 2043 | |
| 61 | Alan Elder | .3501 | 2022 | |
| 63 | Billy Dotson | .3499 | 2031 | |
| 64 | Ray Sears* | .3495 | 2020 | |
| 65 | David Edwards | .3489 | 2025 | |
| 65 | Bartolo Morales | .3489 | 2027 | |
| 67 | Alex Niemann | .3488 | 2028 | |
| 68 | Lautaro Lacasa# | .3487 | 2042 | |
| 69 | Mustapha Gonzales | .3483 | 2017 | |
| 69 | Sake van Arem | .3483 | 2035 | |
| 71 | Alan Elder | .3481 | 2018 | |
| 72 | Mark Toope# | .3478 | 2044 | |
| 73 | Guillermo Coss | .3476 | 2039 | |
| 74 | César Enríques# | .3475 | 2044 | |
| 74 | Brett Callison | .3475 | 2032 | |
| 76 | Bartolo Morales | .3470 | 2026 | |
| 77 | Mark Davis | .3457 | 2013 | |
| 78 | Ryder Ringor# | .3456 | 2043 | |
| 79 | Ed Hopkins | .3451 | 2020 | |
| 80 | Ray Sears* | .3449 | 2014 | |
| 81 | Shiki Sanu | .3447 | 2038 | |
| 81 | Colt Cabana | .3447 | 2032 | |
| 83 | Juan Canó | .3445 | 2014 | |
| 84 | Willie McGirt | .3442 | 2033 | |
| 85 | Yu-zeng Si | .3439 | 2036 | |
| 86 | Billy Dotson | .3436 | 2035 | |
| 87 | Shimei Miura | .3433 | 2033 | |
| 88 | Mario Álvarez | .3426 | 2040 | |
| 89 | Herman Hayes | .3425 | 2020 | |
| 90 | António Macías# | .3424 | 2045 | |
| 91 | Bob Campbell | .3415 | 2021 | |
| 92 | Phil Moore | .3414 | 2034 | |
| 92 | Herman Hayes | .3414 | 2026 | |
| 94 | Robert Shelby | .3400 | 2015 | |
| 95 | Tsuneari Hirano# | .3398 | 2045 | |
| 95 | Chan-ho Shinn# | .3398 | 2040 | |
| 97 | Louis Gibbons | .3378 | 2029 | |
| 98 | Richard Jost | .3373 | 2041 | |
| 99 | Ray Sears* | .3371 | 2019 | |
| 99 | David Edwards | .3371 | 2026 |
