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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | George Riley | .4875 | 2011 | |
| 2 | George Riley | .4548 | 2009 | |
| 3 | George Riley | .4404 | 2007 | |
| 4 | Bud Hoffman | .4386 | 2010 | |
| 5 | George Riley | .4341 | 2013 | |
| 6 | George Riley | .4332 | 2010 | |
| 7 | Miguel Cortéz | .4284 | 2010 | |
| 8 | Emílio Manuel | .4244 | 2019 | |
| 9 | Juan Hernández | .4210 | 2022 | |
| 10 | Emílio Manuel | .4168 | 2020 | |
| 11 | Mark Richardson | .4098 | 2011 | |
| 12 | George Riley | .4066 | 2008 | |
| 13 | Royce Raines | .4056 | 2030 | |
| 14 | Héctor Castillo | .4054 | 2010 | |
| 15 | Royce Raines | .4050 | 2031 | |
| 16 | Rafael Suárez | .4037 | 2021 | |
| 17 | Royce Raines | .4033 | 2027 | |
| 18 | Raúl García | .4000 | 2011 | |
| 19 | Emílio Manuel | .3982 | 2018 | |
| 20 | Miguel Cortéz | .3977 | 2011 | |
| 21 | Hank Bailey | .3949 | 2011 | |
| 22 | Juan Hernández | .3948 | 2021 | |
| 23 | Theodore Boyd | .3947 | 2007 | |
| 24 | Alfredo Vega | .3946 | 2015 | |
| 25 | Juan Hernández | .3939 | 2023 | |
| 26 | Miguel Cortéz | .3928 | 2009 | |
| 27 | Roberto Salazar# | .3914 | 2036 | |
| 28 | Luis Cedeño* | .3901 | 2027 | |
| 29 | George Riley | .3897 | 2018 | |
| 30 | Emílio Manuel | .3892 | 2021 | |
| 31 | Ken Keddy | .3869 | 2014 | |
| 32 | Ronald Lowry* | .3859 | 2016 | |
| 33 | Héctor Castillo | .3857 | 2009 | |
| 34 | Juan Hernández | .3836 | 2019 | |
| 35 | Miguel Cortéz | .3835 | 2013 | |
| 36 | Mark Richardson | .3829 | 2013 | |
| 37 | Chris Long* | .3828 | 2017 | |
| 38 | Roberto Salazar# | .3826 | 2037 | |
| 39 | Carlos Rodríguez | .3824 | 2019 | |
| 40 | Emílio Manuel | .3813 | 2017 | |
| 41 | Mark Richardson | .3812 | 2012 | |
| 41 | Miguel Cortéz | .3812 | 2007 | |
| 43 | José Rivera | .3790 | 2015 | |
| 44 | Roberto Salazar# | .3779 | 2030 | |
| 45 | Todd Hanna | .3777 | 2014 | |
| 46 | Pablo Ortíz# | .3771 | 2038 | |
| 47 | Raúl García | .3763 | 2017 | |
| 47 | Héctor Castillo | .3763 | 2007 | |
| 49 | José Rivera | .3756 | 2019 | |
| 50 | Ronald Lowry* | .3752 | 2013 | |
| 51 | Héctor Castillo | .3746 | 2012 | |
| 52 | George Riley | .3739 | 2014 | |
| 53 | Emílio Manuel | .3737 | 2024 | |
| 54 | Royce Raines | .3736 | 2024 | |
| 55 | George Riley | .3734 | 2015 | |
| 56 | Royce Raines | .3731 | 2028 | |
| 57 | Jorge Velasco | .3727 | 2013 | |
| 58 | Jin-song Zambrano# | .3720 | 2038 | |
| 59 | Royce Raines | .3717 | 2023 | |
| 60 | Juan Carlos Gutiérrez# | .3710 | 2033 | |
| 60 | Miguel Cortéz | .3710 | 2008 | |
| 62 | Bob Dunn | .3708 | 2020 | |
| 63 | Royce Raines | .3705 | 2026 | |
| 63 | Chris Long* | .3705 | 2021 | |
| 65 | Alejandro Ortega | .3702 | 2008 | |
| 65 | Raúl García | .3702 | 2010 | |
| 67 | Miguel Cortéz | .3698 | 2017 | |
| 68 | Orlando Barrón | .3694 | 2025 | |
| 69 | Francisco Murillo | .3688 | 2025 | |
| 70 | Roberto Salazar# | .3683 | 2032 | |
| 70 | Royce Raines | .3683 | 2029 | |
| 72 | Ronald Lowry* | .3680 | 2021 | |
| 72 | Gordon Stenger | .3680 | 2022 | |
| 74 | Miguel Cortéz | .3679 | 2015 | |
| 75 | Ronald Lowry* | .3677 | 2017 | |
| 76 | Jorge Reyes# | .3676 | 2042 | |
| 77 | Juan Hernández | .3673 | 2024 | |
| 78 | Roberto Salazar# | .3668 | 2028 | |
| 79 | José Rivera | .3666 | 2018 | |
| 80 | Miguel Soto | .3663 | 2012 | |
| 81 | Enrique Ríos | .3656 | 2027 | |
| 81 | Roberto Díaz | .3656 | 2029 | |
| 83 | Christian Ramey | .3653 | 2018 | |
| 84 | Ángel Zarate | .3652 | 2009 | |
| 85 | Rien Leeuwenburgh# | .3647 | 2040 | |
| 86 | Roberto Salazar# | .3636 | 2033 | |
| 87 | Juan Hernández | .3632 | 2027 | |
| 88 | Juan Hernández | .3629 | 2020 | |
| 89 | Pablo Ortíz# | .3628 | 2037 | |
| 90 | Raúl García | .3623 | 2009 | |
| 90 | Jin-song Zambrano# | .3623 | 2040 | |
| 92 | Rodrigo Vásquez# | .3619 | 2036 | |
| 93 | Roberto Díaz | .3612 | 2026 | |
| 94 | Bob Ellerby# | .3610 | 2042 | |
| 95 | José Rivera | .3606 | 2016 | |
| 96 | Carlton Wilson | .3603 | 2017 | |
| 97 | Orlando Lozano | .3602 | 2017 | |
| 98 | Ricardo Mateo# | .3599 | 2036 | |
| 99 | Jack Cobb | .3597 | 2008 | |
| 99 | Héctor Castillo | .3597 | 2011 |
