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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Bernalldo Bessa | .4444 | 2015 | |
| 2 | Arturo Romero# | .4416 | 2025 | |
| 3 | Ray Anderson# | .4400 | 2024 | |
| 4 | John Robertson | .4394 | 2018 | |
| 5 | Arturo Acosta | .4391 | 2017 | |
| 6 | Rafael García | .4377 | 2021 | |
| 7 | Nick Simmons | .4336 | 2019 | |
| 8 | Roland Meade | .4299 | 2015 | |
| 9 | Ramón Gómez# | .4278 | 2026 | |
| 10 | Lane Hancock# | .4274 | 2022 | |
| 11 | Toshitsugu Sakamoto | .4269 | 2020 | |
| 12 | Alberto Torres# | .4258 | 2022 | |
| 13 | Álex Burgos# | .4255 | 2023 | |
| 14 | Nate Cates# | .4237 | 2015 | |
| 15 | Shi-young Chang | .4231 | 2022 | |
| 16 | Carroll Kline | .4225 | 2017 | |
| 17 | Pablo Trujillo# | .4212 | 2022 | |
| 17 | David Gómez | .4212 | 2021 | |
| 19 | Tanyu Kimura# | .4206 | 2019 | |
| 20 | Jorge Vargas# | .4201 | 2024 | |
| 21 | Marc Meertens# | .4185 | 2026 | |
| 22 | Reijiro Sato# | .4177 | 2023 | |
| 22 | Mal Phillips | .4177 | 2016 | |
| 24 | Cristo Ramírez# | .4170 | 2017 | |
| 25 | Rafael García | .4167 | 2018 | |
| 26 | Menno van de Vlugt# | .4156 | 2025 | |
| 26 | Sergio Muñóz# | .4156 | 2023 | |
| 28 | Eric Ward# | .4153 | 2021 | |
| 29 | Miguel Martínez# | .4136 | 2021 | |
| 30 | Randy Daugherty# | .4114 | 2024 | |
| 31 | Byron Isaacson# | .4113 | 2026 | |
| 32 | Ray John# | .4099 | 2024 | |
| 33 | John Doyle | .4094 | 2017 | |
| 34 | Hiwahikeiki Noelani# | .4087 | 2026 | |
| 35 | Paul Campbell | .4085 | 2020 | |
| 36 | Júlio Castillo | .4071 | 2018 | |
| 37 | Cory Hansen# | .4070 | 2021 | |
| 38 | Shojiro Kimura | .4067 | 2021 | |
| 39 | Júlio Mateo# | .4057 | 2025 | |
| 40 | Blair Sweeny# | .4056 | 2026 | |
| 40 | Juan Torres | .4056 | 2017 | |
| 42 | Jack Robbins# | .4053 | 2019 | |
| 42 | Tanyu Kimura# | .4053 | 2018 | |
| 44 | Michael Riley# | .4052 | 2020 | |
| 45 | Floyd Banks | .4049 | 2018 | |
| 46 | Chet Nix | .4038 | 2018 | |
| 47 | Jesús González# | .4033 | 2026 | |
| 48 | Gerald Holloway | .4023 | 2018 | |
| 49 | Micheal Murdoch# | .4018 | 2016 | |
| 50 | Harlan Price | .4017 | 2016 | |
| 51 | Spencer Curry# | .4010 | 2016 | |
| 52 | Jesús López# | .3994 | 2022 | |
| 53 | Stan Hughes | .3990 | 2017 | |
| 53 | Kyle Bridges | .3990 | 2024 | |
| 55 | Roberto López# | .3982 | 2026 | |
| 56 | José Alonso# | .3971 | 2021 | |
| 57 | Bob Campbell# | .3969 | 2026 | |
| 58 | Kyle Dempsey | .3962 | 2020 | |
| 59 | Jack Schmitt# | .3960 | 2019 | |
| 60 | Juan Ramos# | .3956 | 2019 | |
| 61 | Pedro Orozco# | .3952 | 2026 | |
| 62 | Ken Miller# | .3951 | 2019 | |
| 63 | Mark Melton# | .3950 | 2021 | |
| 64 | Jeff Conklin# | .3944 | 2023 | |
| 64 | Scott Britt | .3944 | 2021 | |
| 66 | Max White | .3942 | 2019 | |
| 66 | Roberto López# | .3942 | 2023 | |
| 68 | Gabriel Rodríguez# | .3939 | 2017 | |
| 68 | Todd Hill# | .3939 | 2023 | |
| 70 | Jeff Conklin# | .3930 | 2022 | |
| 71 | Carroll Kline | .3928 | 2019 | |
| 72 | Ron Peterson | .3926 | 2024 | |
| 72 | Tom Craft | .3926 | 2022 | |
| 74 | Pancho De La Rosa# | .3925 | 2024 | |
| 75 | Joe Sutton# | .3920 | 2024 | |
| 76 | Pat Carrasco | .3919 | 2016 | |
| 77 | Philip Strickland# | .3913 | 2025 | |
| 78 | Álex Burgos# | .3910 | 2022 | |
| 79 | Ludovico Bluemel | .3908 | 2017 | |
| 80 | Will Thomas# | .3899 | 2024 | |
| 80 | Enrique Marroquín# | .3899 | 2019 | |
| 82 | Tony Sánchez | .3898 | 2017 | |
| 83 | Dennis Clifton# | .3894 | 2024 | |
| 83 | Roy Williams# | .3894 | 2023 | |
| 85 | Sean Booth# | .3893 | 2023 | |
| 86 | Adam Hennessey | .3892 | 2019 | |
| 86 | Jon MacIntyre | .3892 | 2017 | |
| 88 | Mike Green# | .3890 | 2020 | |
| 89 | Jack Mason | .3888 | 2017 | |
| 90 | Gerald Clark# | .3883 | 2023 | |
| 90 | Stephen Blair# | .3883 | 2025 | |
| 92 | Jack Mason | .3880 | 2016 | |
| 93 | Spencer Curry# | .3878 | 2019 | |
| 94 | Will Thomas# | .3877 | 2019 | |
| 95 | Menno van de Vlugt# | .3867 | 2024 | |
| 95 | Luis Díaz | .3867 | 2018 | |
| 97 | Stephen Fraven | .3862 | 2018 | |
| 98 | Taikan Miura | .3858 | 2021 | |
| 99 | Luis Silva | .3857 | 2023 | |
| 100 | Pancho De La Rosa# | .3853 | 2023 |
