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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Shojiro Ueda# | .4416 | 2023 | |
| 2 | Jeff Rutherford# | .4413 | 2023 | |
| 3 | Fred Meyer# | .4279 | 2023 | |
| 4 | Pepe Reyes# | .4169 | 2025 | |
| 5 | Roberto Sánchez# | .4122 | 2023 | |
| 6 | Ricardo Pacheco# | .4046 | 2024 | |
| 7 | Lupo Cotto# | .4044 | 2025 | |
| 8 | Christian Blair# | .4018 | 2022 | |
| 9 | José Ortega# | .3972 | 2022 | |
| 10 | Andrew Hall# | .3914 | 2023 | |
| 11 | Scott Britt | .3913 | 2023 | |
| 12 | Cory Hansen# | .3872 | 2020 | |
| 13 | Mike Cook# | .3793 | 2022 | |
| 14 | Jesús Reyes# | .3730 | 2020 | |
| 15 | Octávio Zúńiga# | .3676 | 2021 | |
| 16 | Miguel Juárez | .3663 | 2020 | |
| 17 | Rubén Alvarado# | .3625 | 2024 | |
| 18 | Dawit Lihalakha# | .3606 | 2026 | |
| 19 | John Thompson# | .3557 | 2024 | |
| 20 | Octávio Zúńiga# | .3544 | 2022 | |
| 21 | Jason Potter# | .3488 | 2025 | |
| 22 | Ricardo Franco | .3480 | 2023 | |
| 23 | Paco Vásquez# | .3475 | 2023 | |
| 24 | Lúcio López# | .3421 | 2020 | |
| 25 | Alfredo Chávez# | .3401 | 2022 | |
| 26 | José Bravo | .3374 | 2022 | |
| 27 | Phil Dougherty# | .3341 | 2026 | |
| 28 | Brent van Schoonhoven# | .3319 | 2025 | |
| 29 | Luis Sáenz# | .3294 | 2021 | |
| 30 | Alfredo Chávez# | .3255 | 2021 | |
| 31 | José Rodríguez# | .3191 | 2021 | |
| 31 | Preston Hernández# | .3191 | 2024 | |
| 33 | Paco Vásquez# | .3175 | 2022 | |
| 34 | José Estrada# | .3158 | 2021 | |
| 35 | Alfredo Sánchez# | .3134 | 2026 | |
| 36 | José Vázquez# | .3072 | 2023 | |
| 37 | José Rodríguez# | .3071 | 2020 | |
| 38 | Luis Tapia# | .3050 | 2021 | |
| 39 | Juan Rivera# | .2982 | 2026 | |
| 40 | Ron Coffman# | .2966 | 2026 | |
| 41 | José Estrada# | .2881 | 2020 |
