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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Seung-jae Kyong# | .4565 | 2049 | |
| 2 | John Hill | .4440 | 2016 | |
| 3 | Juan Jose Ayala* | .4434 | 2031 | |
| 4 | António Martínez* | .4093 | 2027 | |
| 5 | Bob Campbell | .4065 | 2018 | |
| 6 | Juan Andrés Martí# | .4049 | 2045 | |
| 7 | Eustacio Tafalla* | .4017 | 2034 | |
| 8 | Tamasaburo Kato* | .4008 | 2028 | |
| 9 | David Edwards | .4004 | 2023 | |
| 10 | Eisse van Opdorp# | .4000 | 2042 | |
| 11 | Tamasaburo Kato* | .3995 | 2025 | |
| 12 | Juan Andrés Martí# | .3980 | 2041 | |
| 13 | Chris P. Bacon# | .3966 | 2050 | |
| 14 | Yu-zeng Si | .3946 | 2034 | |
| 15 | Jonas van Claveren | .3918 | 2044 | |
| 16 | Ray Sears* | .3912 | 2016 | |
| 17 | Arturo Rodríguez | .3905 | 2031 | |
| 18 | Ray Sears* | .3887 | 2017 | |
| 19 | Juan Andrés Martí# | .3861 | 2040 | |
| 20 | Pedro Willis | .3843 | 2016 | |
| 21 | Ray Sears* | .3835 | 2015 | |
| 22 | Seung-jae Kyong# | .3833 | 2051 | |
| 23 | Herman Hayes | .3817 | 2021 | |
| 23 | Brian O'Brian | .3817 | 2013 | |
| 25 | Melvin Thomas | .3802 | 2043 | |
| 26 | Rômulo Caho | .3790 | 2014 | |
| 26 | David Edwards | .3790 | 2022 | |
| 28 | Pedro Willis | .3786 | 2013 | |
| 29 | Chris P. Bacon# | .3778 | 2048 | |
| 30 | Carlos Rivera# | .3773 | 2047 | |
| 31 | Mark Toope | .3771 | 2046 | |
| 32 | Yu-zeng Si | .3765 | 2035 | |
| 33 | Mark Toope | .3763 | 2045 | |
| 34 | Carlos Rivera# | .3756 | 2052 | |
| 35 | Juan Jose Ayala* | .3725 | 2030 | |
| 35 | Tamasaburo Kato* | .3725 | 2034 | |
| 37 | Melvin Thomas | .3723 | 2039 | |
| 38 | Tamasaburo Kato* | .3722 | 2033 | |
| 39 | Chris P. Bacon# | .3707 | 2049 | |
| 40 | Ashley Thachi | .3704 | 2037 | |
| 41 | Arturo Rodríguez | .3700 | 2030 | |
| 42 | Robert Shelby | .3696 | 2014 | |
| 43 | António Martínez* | .3679 | 2036 | |
| 44 | António Martínez* | .3672 | 2029 | |
| 45 | Richard Jost | .3668 | 2042 | |
| 46 | Leonard O'Connor | .3660 | 2017 | |
| 46 | Jorge Alejándrez* | .3660 | 2036 | |
| 48 | Nate Cates | .3644 | 2022 | |
| 49 | Nate Cates | .3631 | 2021 | |
| 49 | António Macías# | .3631 | 2042 | |
| 51 | Sake van Arem* | .3630 | 2032 | |
| 52 | Chris P. Bacon# | .3622 | 2052 | |
| 53 | Mike Ríos# | .3620 | 2045 | |
| 54 | António Martínez* | .3617 | 2028 | |
| 55 | Melvin Thomas | .3615 | 2040 | |
| 56 | Billy Dotson | .3611 | 2039 | |
| 57 | Lautaro Lacasa# | .3600 | 2044 | |
| 58 | Sake van Arem* | .3597 | 2034 | |
| 59 | Carlos Rivera# | .3586 | 2046 | |
| 60 | Lautaro Lacasa# | .3584 | 2047 | |
| 61 | Orlando Velásquez | .3580 | 2036 | |
| 62 | Mark Toope | .3578 | 2047 | |
| 63 | Ray Sears* | .3576 | 2021 | |
| 64 | António Macías# | .3574 | 2043 | |
| 65 | Ray Sears* | .3573 | 2018 | |
| 66 | Lautaro Lacasa# | .3570 | 2043 | |
| 67 | Bob Campbell | .3563 | 2022 | |
| 68 | Seung-jae Kyong# | .3555 | 2053 | |
| 69 | Juan Barrón# | .3552 | 2049 | |
| 70 | Lautaro Lacasa# | .3548 | 2048 | |
| 71 | Billy Dotson | .3542 | 2038 | |
| 72 | Hugh Mungus | .3538 | 2030 | |
| 73 | Carlos Rivera# | .3537 | 2048 | |
| 74 | Ed Hopkins | .3536 | 2019 | |
| 75 | Juan Barrón# | .3527 | 2048 | |
| 76 | Dan Wells# | .3525 | 2053 | |
| 77 | Hugh Mungus | .3517 | 2034 | |
| 78 | Chris P. Bacon# | .3512 | 2051 | |
| 79 | Sake van Arem* | .3504 | 2037 | |
| 80 | Guillermo Coss | .3501 | 2043 | |
| 80 | Alan Elder | .3501 | 2022 | |
| 82 | Billy Dotson | .3499 | 2031 | |
| 83 | Ray Sears* | .3495 | 2020 | |
| 84 | David Edwards | .3489 | 2025 | |
| 84 | Bartolo Morales | .3489 | 2027 | |
| 86 | Alex Niemann | .3488 | 2028 | |
| 87 | Lautaro Lacasa# | .3487 | 2042 | |
| 88 | Mustapha Gonzales | .3483 | 2017 | |
| 88 | Sake van Arem* | .3483 | 2035 | |
| 90 | Alan Elder | .3481 | 2018 | |
| 91 | Mark Toope | .3478 | 2044 | |
| 91 | Ryder Ringor | .3478 | 2047 | |
| 93 | Guillermo Coss | .3476 | 2039 | |
| 94 | César Enríques | .3475 | 2044 | |
| 94 | Brett Callison | .3475 | 2032 | |
| 96 | Bartolo Morales | .3470 | 2026 | |
| 97 | Mark Davis | .3457 | 2013 | |
| 98 | Ryder Ringor | .3456 | 2043 | |
| 99 | Dan Wells# | .3453 | 2052 | |
| 100 | Ed Hopkins | .3451 | 2020 |
