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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Luis Rosales# | .4645 | 2031 | |
| 2 | Luis Lozano# | .4577 | 2025 | |
| 3 | Travis Sparrow | .4495 | 2027 | |
| 4 | Bill O'Neil | .4459 | 2028 | |
| 5 | Jeff Jones | .4421 | 2024 | |
| 6 | James Dodd | .4405 | 2021 | |
| 7 | Jesús Flores | .4383 | 2018 | |
| 8 | Júlio Padilla# | .4366 | 2033 | |
| 9 | Bruce Meade | .4347 | 2024 | |
| 10 | John Dodds# | .4294 | 2026 | |
| 11 | Jeffrey Roussel | .4288 | 2013 | |
| 12 | Jerome Guerra | .4286 | 2015 | |
| 13 | Qi-zhen Huang | .4262 | 2026 | |
| 14 | John Dodds# | .4245 | 2028 | |
| 15 | Júlio Padilla# | .4218 | 2035 | |
| 16 | Dennis Chase | .4181 | 2014 | |
| 17 | Héctor Valera# | .4151 | 2028 | |
| 18 | Earl Groesbeck | .4134 | 2025 | |
| 19 | James Dodd | .4129 | 2016 | |
| 20 | Cristobal Santoyo | .4126 | 2016 | |
| 21 | Pedro Reyes# | .4107 | 2032 | |
| 22 | Luis Rosales# | .4097 | 2030 | |
| 23 | Lindsay Walker | .4087 | 2016 | |
| 24 | Matthew Rodrigue | .4060 | 2020 | |
| 25 | Jeff Corson# | .4051 | 2023 | |
| 26 | Paul Ellis | .4049 | 2021 | |
| 27 | Marcos Alcazar | .4044 | 2013 | |
| 28 | Earl Groesbeck | .4015 | 2020 | |
| 29 | Chester Lyons# | .4008 | 2035 | |
| 30 | Pedro Reyes# | .4000 | 2034 | |
| 30 | Ki-chun Kang | .4000 | 2020 | |
| 32 | Arthur Cain | .3986 | 2025 | |
| 33 | Bruce Meade | .3972 | 2022 | |
| 34 | Pedro Reyes# | .3966 | 2035 | |
| 35 | Jesús Valdéz# | .3963 | 2027 | |
| 36 | Earl Groesbeck | .3957 | 2015 | |
| 37 | Jonathan Pitts# | .3951 | 2033 | |
| 38 | Earl Groesbeck | .3950 | 2017 | |
| 39 | Bruce Meade | .3916 | 2018 | |
| 40 | Jeffrey Roussel | .3903 | 2014 | |
| 41 | Luis Rodríguez | .3894 | 2022 | |
| 42 | Miguel Salazar | .3880 | 2016 | |
| 43 | Ryan Gary# | .3877 | 2033 | |
| 44 | Marcos Alcazar | .3875 | 2021 | |
| 45 | John Woolery | .3869 | 2025 | |
| 46 | Earl Groesbeck | .3857 | 2019 | |
| 46 | Matthew James# | .3857 | 2035 | |
| 48 | Junior Bowden# | .3834 | 2031 | |
| 49 | Basil Napoles | .3832 | 2020 | |
| 50 | Jerome Guerra | .3820 | 2016 | |
| 51 | Benito Torre | .3819 | 2014 | |
| 52 | Jerome Guerra | .3805 | 2017 | |
| 53 | Carlos Sánchez | .3800 | 2020 | |
| 54 | John Woolery | .3798 | 2016 | |
| 55 | Roberto González | .3795 | 2030 | |
| 56 | John Dodds# | .3791 | 2029 | |
| 57 | Roberto Benítez# | .3786 | 2032 | |
| 57 | Tony Brown | .3786 | 2020 | |
| 59 | Luther George | .3777 | 2015 | |
| 59 | Jeff Jones | .3777 | 2023 | |
| 61 | Cristiano Cancela | .3757 | 2031 | |
| 62 | John Woolery | .3748 | 2022 | |
| 62 | Bernardo Álvarez# | .3748 | 2028 | |
| 64 | Ki-chun Kang | .3742 | 2021 | |
| 65 | Justin Johnson | .3724 | 2026 | |
| 66 | Carlos Fernández | .3709 | 2022 | |
| 67 | António Rentería | .3708 | 2028 | |
| 67 | Tony Brown | .3708 | 2027 | |
| 69 | Tony Brown | .3704 | 2026 | |
| 70 | Raul Ortega | .3697 | 2014 | |
| 70 | David Seibel | .3697 | 2016 | |
| 72 | John Banfield | .3694 | 2020 | |
| 73 | Ronald Amos | .3685 | 2013 | |
| 74 | Manuel Hidalgo# | .3671 | 2026 | |
| 75 | Qi-zhen Huang | .3669 | 2019 | |
| 76 | Miguel Ortíz | .3656 | 2025 | |
| 77 | Michael Harrington# | .3644 | 2034 | |
| 78 | Vicente Murillo | .3643 | 2014 | |
| 79 | Jerry Montgomery | .3638 | 2015 | |
| 80 | António Venet# | .3634 | 2026 | |
| 81 | Jerry Montgomery | .3630 | 2017 | |
| 82 | Matthew Rodrigue | .3628 | 2018 | |
| 83 | Ramón Hernández# | .3627 | 2033 | |
| 84 | Bernardo Álvarez# | .3625 | 2027 | |
| 85 | Tabito Hara | .3609 | 2023 | |
| 86 | Miguel Rodríguez | .3602 | 2027 | |
| 87 | Leroy Ellis | .3601 | 2019 | |
| 88 | Tabito Hara | .3591 | 2025 | |
| 89 | Raul Ortega | .3566 | 2013 | |
| 90 | Tony Brown | .3554 | 2024 | |
| 91 | Luis Lozano# | .3552 | 2032 | |
| 92 | Joseph Malin | .3549 | 2014 | |
| 93 | John Woolery | .3544 | 2017 | |
| 94 | Tony Brown | .3521 | 2028 | |
| 95 | Dave Nix | .3519 | 2021 | |
| 96 | Jerome Guerra | .3510 | 2018 | |
| 97 | John Woolery | .3502 | 2024 | |
| 98 | Mauro Torres | .3493 | 2018 | |
| 99 | Isaac Perez | .3490 | 2021 | |
| 100 | Liu-chun Pi | .3486 | 2023 |
