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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | David Ramírez# | .4652 | 2023 | |
| 2 | Pedro Willis | .4204 | 2024 | |
| 3 | Lloyd Alberink# | .4156 | 2025 | |
| 4 | Bill Dennis# | .4077 | 2023 | |
| 5 | Tamasaburo Kato# | .4014 | 2020 | |
| 6 | Luis Alomar# | .3746 | 2024 | |
| 7 | Ron Ward# | .3725 | 2026 | |
| 8 | Shang-de Zhang# | .3650 | 2024 | |
| 9 | Emílio Barbán | .3602 | 2023 | |
| 10 | Jim Lee# | .3578 | 2025 | |
| 11 | Jorge Pérez# | .3562 | 2023 | |
| 12 | Alfredo López# | .3561 | 2023 | |
| 13 | Bill Dennis# | .3531 | 2022 | |
| 14 | Juan Martínez | .3501 | 2020 | |
| 15 | Brian King | .3384 | 2021 | |
| 16 | Dale Blair# | .3308 | 2025 | |
| 17 | Mark Davis | .3304 | 2020 | |
| 18 | Dale Blair# | .3198 | 2026 | |
| 19 | Bill Dennis# | .3182 | 2025 | |
| 20 | David Sánchez# | .3158 | 2025 | |
| 21 | Bill Dennis# | .3149 | 2026 | |
| 22 | Ernesto Souza# | .2889 | 2026 | |
| 23 | Elvis Larson# | .2854 | 2022 | |
| 24 | Carlos Gómez | .2841 | 2020 | |
| 25 | Lorenzo Sabastro# | .2834 | 2021 | |
| 26 | Carlos Gómez | .2764 | 2022 | |
| 27 | Álex Rodríguez# | .2720 | 2024 |
