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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 | Ishaan Swan# | .4100 | 2058 | |
| 5 | António Martínez* | .4093 | 2027 | |
| 6 | Bob Campbell | .4065 | 2018 | |
| 7 | Juan Andrés Martí* | .4049 | 2045 | |
| 8 | Eustacio Tafalla* | .4017 | 2034 | |
| 9 | Tamasaburo Kato* | .4008 | 2028 | |
| 10 | David Edwards | .4004 | 2023 | |
| 11 | Eisse van Opdorp | .4000 | 2042 | |
| 12 | Tamasaburo Kato* | .3995 | 2025 | |
| 13 | Juan Andrés Martí* | .3980 | 2041 | |
| 14 | Chris P. Bacon | .3966 | 2050 | |
| 15 | Yu-zeng Si | .3946 | 2034 | |
| 16 | Jonas van Claveren* | .3918 | 2044 | |
| 17 | Ray Sears* | .3912 | 2016 | |
| 18 | Arturo Rodríguez | .3905 | 2031 | |
| 19 | Ray Sears* | .3887 | 2017 | |
| 20 | Juan Andrés Martí* | .3861 | 2040 | |
| 21 | Pedro Willis | .3843 | 2016 | |
| 22 | Ray Sears* | .3835 | 2015 | |
| 23 | Seung-jae Kyong | .3833 | 2051 | |
| 24 | Soo-keun Yi# | .3826 | 2059 | |
| 25 | Herman Hayes | .3817 | 2021 | |
| 25 | Brian O'Brian | .3817 | 2013 | |
| 27 | Daniel Webster# | .3806 | 2062 | |
| 28 | Melvin Thomas | .3802 | 2043 | |
| 29 | Rômulo Caho | .3790 | 2014 | |
| 29 | David Edwards | .3790 | 2022 | |
| 31 | Bill Meeks# | .3788 | 2062 | |
| 32 | Pedro Willis | .3786 | 2013 | |
| 33 | Chris P. Bacon | .3778 | 2048 | |
| 34 | Carlos Rivera# | .3773 | 2047 | |
| 35 | Mark Toope | .3771 | 2046 | |
| 36 | Yu-zeng Si | .3765 | 2035 | |
| 37 | Mark Toope | .3763 | 2045 | |
| 38 | Zhong-yi Yun | .3761 | 2057 | |
| 38 | Jorge Valdés# | .3761 | 2062 | |
| 38 | Jorge Valdés# | .3761 | 2061 | |
| 41 | Carlos Rivera# | .3756 | 2052 | |
| 42 | Tamasaburo Kato* | .3725 | 2034 | |
| 42 | Juan Jose Ayala* | .3725 | 2030 | |
| 44 | Melvin Thomas | .3723 | 2039 | |
| 45 | Tamasaburo Kato* | .3722 | 2033 | |
| 46 | Chris P. Bacon | .3707 | 2049 | |
| 47 | Ashley Thachi | .3704 | 2037 | |
| 48 | Arturo Rodríguez | .3700 | 2030 | |
| 49 | Robert Shelby | .3696 | 2014 | |
| 50 | António Martínez* | .3679 | 2036 | |
| 51 | António Martínez* | .3672 | 2029 | |
| 52 | Richard Jost | .3668 | 2042 | |
| 53 | Leonard O'Connor | .3660 | 2017 | |
| 53 | Jorge Alejándrez* | .3660 | 2036 | |
| 55 | Basilio Penni# | .3651 | 2058 | |
| 56 | Nate Cates | .3644 | 2022 | |
| 57 | Nate Cates | .3631 | 2021 | |
| 57 | António Macías | .3631 | 2042 | |
| 59 | Basilio Penni# | .3630 | 2055 | |
| 59 | Sake van Arem* | .3630 | 2032 | |
| 61 | Chris P. Bacon | .3622 | 2052 | |
| 62 | Mike Ríos | .3620 | 2045 | |
| 63 | Dan Wells | .3619 | 2057 | |
| 64 | António Martínez* | .3617 | 2028 | |
| 65 | Melvin Thomas | .3615 | 2040 | |
| 66 | Billy Dotson | .3611 | 2039 | |
| 67 | Lautaro Lacasa | .3600 | 2044 | |
| 68 | Sake van Arem* | .3597 | 2034 | |
| 69 | Zhong-yi Yun | .3589 | 2058 | |
| 70 | Carlos Rivera# | .3586 | 2046 | |
| 71 | Lautaro Lacasa | .3584 | 2047 | |
| 72 | Fernando Mezzatesta# | .3583 | 2060 | |
| 73 | Chun-yeong Pyon# | .3581 | 2060 | |
| 74 | Orlando Velásquez | .3580 | 2036 | |
| 75 | Mark Toope | .3578 | 2047 | |
| 76 | Douglas Wacher# | .3576 | 2060 | |
| 76 | Ray Sears* | .3576 | 2021 | |
| 78 | António Macías | .3574 | 2043 | |
| 79 | Ray Sears* | .3573 | 2018 | |
| 80 | Lautaro Lacasa | .3570 | 2043 | |
| 81 | Bob Campbell | .3563 | 2022 | |
| 82 | Seung-jae Kyong | .3555 | 2053 | |
| 83 | Juan Barrón | .3552 | 2049 | |
| 84 | Lautaro Lacasa | .3548 | 2048 | |
| 85 | Billy Dotson | .3542 | 2038 | |
| 86 | Basilio Penni# | .3541 | 2054 | |
| 87 | Hugh Mungus | .3538 | 2030 | |
| 88 | Carlos Rivera# | .3537 | 2048 | |
| 89 | Ed Hopkins | .3536 | 2019 | |
| 90 | Juan Barrón | .3527 | 2048 | |
| 91 | Dan Wells | .3525 | 2053 | |
| 92 | Fernando Mezzatesta# | .3524 | 2059 | |
| 93 | Mito Kawamura# | .3519 | 2057 | |
| 94 | Hugh Mungus | .3517 | 2034 | |
| 95 | Chris P. Bacon | .3512 | 2051 | |
| 96 | Sake van Arem* | .3504 | 2037 | |
| 97 | Guillermo Coss | .3501 | 2043 | |
| 97 | Alan Elder | .3501 | 2022 | |
| 99 | Billy Dotson | .3499 | 2031 | |
| 100 | Ray Sears* | .3495 | 2020 |
