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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | John Foster | .4518 | 2015 | |
| 2 | César Torres | .4347 | 2020 | |
| 3 | Gabriel McIntyre | .4338 | 2021 | |
| 4 | César Torres | .4299 | 2021 | |
| 5 | Mario Tessier | .4273 | 2013 | |
| 6 | Richard Valkenburg | .4238 | 2019 | |
| 7 | Jason Crabtree | .4228 | 2021 | |
| 8 | Jason Crabtree | .4221 | 2020 | |
| 9 | Pablo Medrano | .4140 | 2022 | |
| 10 | Fernando Rivera | .4121 | 2012 | |
| 11 | Lee Middleton | .4091 | 2011 | |
| 12 | Leslie McDonald | .4075 | 2013 | |
| 13 | Héctor Trujillo | .4068 | 2007 | |
| 14 | Cal Stout | .4042 | 2012 | |
| 15 | Jesús Villarreal | .4017 | 2018 | |
| 16 | José Morán | .4014 | 2011 | |
| 16 | David Morrison | .4014 | 2020 | |
| 18 | Bob Dunn | .4000 | 2031 | |
| 19 | Lee Middleton | .3996 | 2012 | |
| 20 | Felipe Cardoza | .3991 | 2020 | |
| 21 | Bill Gibbs | .3978 | 2021 | |
| 22 | Orlando López | .3969 | 2019 | |
| 23 | Javier Prieto | .3955 | 2011 | |
| 24 | Benjamin Gentileschi# | .3947 | 2035 | |
| 25 | Jim Klein | .3934 | 2018 | |
| 26 | Jesús Villarreal | .3931 | 2020 | |
| 27 | Frederick Craig | .3922 | 2008 | |
| 28 | Javier Muñóz | .3915 | 2013 | |
| 29 | Derrick Dwyer | .3894 | 2023 | |
| 30 | Chris Wiley | .3875 | 2007 | |
| 31 | Takane Chikafuji | .3840 | 2033 | |
| 32 | Luis Amaya | .3835 | 2010 | |
| 32 | Luis Amaya | .3835 | 2009 | |
| 34 | Alonso Méndez | .3832 | 2013 | |
| 35 | Alonso Méndez | .3818 | 2018 | |
| 36 | Frederick Craig | .3816 | 2009 | |
| 37 | Phil Echols | .3810 | 2022 | |
| 38 | Errol Grey | .3795 | 2015 | |
| 39 | Mike Smith | .3791 | 2008 | |
| 40 | Gerardo García | .3787 | 2020 | |
| 41 | Keith Goslin | .3780 | 2008 | |
| 42 | Art Gordon | .3773 | 2008 | |
| 43 | Orlando López | .3761 | 2020 | |
| 44 | Ron Ryan | .3760 | 2008 | |
| 45 | Shuji Kawamoto | .3759 | 2035 | |
| 46 | Javier Prieto | .3752 | 2010 | |
| 47 | Bob Dunn | .3738 | 2030 | |
| 48 | Lewis McKinney | .3727 | 2021 | |
| 48 | Theodore Bryant | .3727 | 2028 | |
| 50 | Felipe Cardoza | .3715 | 2019 | |
| 51 | Mark Bobb | .3696 | 2011 | |
| 52 | Pedro Rodríguez# | .3688 | 2029 | |
| 53 | Chris Wiley | .3687 | 2009 | |
| 54 | Miguel López | .3685 | 2009 | |
| 55 | Juan Rincón# | .3684 | 2033 | |
| 56 | Dale Mitchell | .3679 | 2010 | |
| 57 | Cole Middleton | .3675 | 2024 | |
| 57 | Lee Middleton | .3675 | 2009 | |
| 59 | Griff Aspinwall# | .3672 | 2038 | |
| 60 | David Morrison | .3667 | 2017 | |
| 61 | Juan Toro | .3665 | 2018 | |
| 62 | Scott Veeck | .3654 | 2007 | |
| 63 | Alfonso Mercado | .3653 | 2017 | |
| 64 | Víctor Alvarado | .3650 | 2019 | |
| 65 | Tsunesaburo Sugimoto | .3646 | 2012 | |
| 66 | Rubén Alvarado | .3644 | 2020 | |
| 67 | Héctor Prado | .3639 | 2017 | |
| 68 | Theodore Bryant | .3635 | 2027 | |
| 69 | Adrián Gutiérrez# | .3634 | 2039 | |
| 70 | Carlton Berry | .3632 | 2014 | |
| 71 | Tom Wickersham | .3626 | 2018 | |
| 72 | John Lawson | .3624 | 2024 | |
| 73 | Bernardo Sandoval | .3617 | 2035 | |
| 74 | Yeong-hun Kim | .3614 | 2021 | |
| 75 | B.J. Gassaway | .3612 | 2022 | |
| 76 | Carlos Garza# | .3611 | 2025 | |
| 77 | Gabriel López | .3609 | 2021 | |
| 78 | Lewis McKinney | .3606 | 2020 | |
| 79 | Carlton Wilson | .3605 | 2014 | |
| 80 | Yeong-hun Kim | .3597 | 2022 | |
| 81 | Robert Reed | .3590 | 2013 | |
| 81 | Rocky Kowalski# | .3590 | 2030 | |
| 83 | Jud McCauley | .3587 | 2023 | |
| 84 | Jack Speed | .3586 | 2021 | |
| 85 | Dmitri Hill | .3582 | 2027 | |
| 86 | Ron Baldwin | .3566 | 2020 | |
| 87 | Pancho Prado# | .3565 | 2036 | |
| 88 | Fraser Monroe | .3564 | 2012 | |
| 89 | Javier Muñóz | .3560 | 2011 | |
| 89 | John Copestake | .3560 | 2014 | |
| 91 | Manuel Núñez | .3550 | 2020 | |
| 92 | Hubert Lee | .3549 | 2019 | |
| 93 | Lee Middleton | .3548 | 2010 | |
| 94 | Cal Stout | .3547 | 2015 | |
| 95 | Charlie Liston# | .3542 | 2039 | |
| 96 | Otis Perreault# | .3540 | 2037 | |
| 97 | Nathan Carter | .3537 | 2014 | |
| 97 | Chad Harvey | .3537 | 2016 | |
| 99 | Takane Chikafuji | .3532 | 2035 | |
| 100 | Dan Frazier | .3530 | 2028 |
