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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | John Dickerson# | .4423 | 2027 | |
| 2 | César Cruz# | .4243 | 2028 | |
| 3 | Mark Porter# | .4195 | 2025 | |
| 4 | Francisco Vázquez# | .4070 | 2028 | |
| 5 | Dave Cabral# | .4046 | 2024 | |
| 6 | Marcos Lopes | .4039 | 2013 | |
| 7 | Duncan Gordon# | .3987 | 2027 | |
| 8 | Jaime Cortéz# | .3956 | 2027 | |
| 9 | Tony Diestefano | .3849 | 2014 | |
| 10 | Aaron Hampton# | .3804 | 2020 | |
| 11 | Spencer Smith | .3800 | 2020 | |
| 12 | Moses Frances | .3761 | 2014 | |
| 13 | John Hayes# | .3757 | 2031 | |
| 14 | Ron Lyons | .3739 | 2018 | |
| 15 | Tony Diestefano | .3725 | 2013 | |
| 16 | Mario Álvarez | .3680 | 2019 | |
| 17 | Ron Morgan# | .3657 | 2031 | |
| 18 | Felipe Rojas | .3615 | 2026 | |
| 19 | Alexander Jones# | .3594 | 2022 | |
| 20 | Júlio Quintero | .3467 | 2019 | |
| 21 | Lonnie Draeger# | .3394 | 2020 | |
| 22 | Juan Marés# | .3387 | 2028 | |
| 23 | Wayne Thompson | .3383 | 2013 | |
| 24 | Steve Lee# | .3362 | 2028 | |
| 25 | Ken Arnold# | .3341 | 2031 | |
| 26 | Jonathan Gray | .3257 | 2020 | |
| 27 | Júlio Herrera | .3204 | 2019 | |
| 28 | James Blumberg | .3197 | 2013 | |
| 29 | Jesús Durán# | .3196 | 2027 | |
| 30 | Moses Frances | .3164 | 2013 | |
| 31 | Vicente Corona# | .3080 | 2023 | |
| 32 | Dan St. John | .3034 | 2017 | |
| 33 | Ryan Burks | .2830 | 2017 | |
| 34 | Enrico Miranda# | .2735 | 2031 | |
| 35 | Gilberto Aguilar | .2653 | 2016 | |
| 36 | Gabriel Feliciano | .2562 | 2015 | |
| 37 | Dan St. John | .2426 | 2015 |
