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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Octávio Ontiveros# | .3889 | 2027 | |
| 2 | Alex Niemann# | .3854 | 2022 | |
| 3 | Héctor Rivera# | .3787 | 2025 | |
| 4 | Kent Roberts# | .3778 | 2020 | |
| 5 | Kent Roberts# | .3728 | 2022 | |
| 6 | Kent Roberts# | .3671 | 2021 | |
| 7 | Jimmy Dawson# | .3653 | 2022 | |
| 8 | Sergio Anruvio | .3590 | 2023 | |
| 9 | Noël Sassetti# | .3577 | 2027 | |
| 10 | Davis Anderson# | .3526 | 2022 | |
| 11 | Iván Chacón# | .3519 | 2023 | |
| 12 | Zong-yuan Fung# | .3408 | 2021 | |
| 13 | Keith Kamen# | .3333 | 2026 | |
| 14 | Henry Lambright# | .3316 | 2022 | |
| 15 | Roberto De La Cruz# | .3271 | 2021 | |
| 16 | Andrés Medina# | .3241 | 2026 | |
| 17 | Rodrigo Gómez# | .3240 | 2026 | |
| 18 | Jung-hwan Kwon# | .3206 | 2022 | |
| 19 | Andrés Medina# | .3194 | 2025 | |
| 20 | Iván Chacón# | .3185 | 2022 | |
| 21 | Tasuku Goto# | .3168 | 2028 | |
| 22 | António Padilla# | .3159 | 2021 | |
| 23 | Matt Love# | .3081 | 2021 | |
| 24 | Roberto Aguirre# | .3050 | 2025 | |
| 25 | Sancho Rodríguez | .3039 | 2023 | |
| 26 | Tim Burnett | .3012 | 2020 | |
| 27 | Juan Pedraza# | .2895 | 2028 | |
| 28 | Nolan Halverson# | .2894 | 2027 | |
| 29 | Mark Vidal# | .2846 | 2022 | |
| 30 | Javier Marino# | .2844 | 2026 | |
| 31 | Dave Yates# | .2829 | 2024 | |
| 32 | Jung-hwan Kwon# | .2814 | 2021 | |
| 33 | León Domínguez | .2695 | 2020 | |
| 34 | Roberto Aguirre# | .2682 | 2026 | |
| 35 | Andrés Medina# | .2673 | 2024 | |
| 36 | César Ramos# | .2644 | 2028 | |
| 37 | Tasuku Goto# | .2628 | 2027 | |
| 38 | Fernando Arévalo# | .2572 | 2027 | |
| 39 | Juan Salinas# | .2453 | 2020 | |
| 40 | Mike Hines | .2432 | 2025 | |
| 41 | Bill Bambridge# | .2375 | 2027 | |
| 42 | Chang-lit Min# | .2362 | 2026 | |
| 43 | José Macías | .2333 | 2020 | |
| 44 | José Bravo# | .2259 | 2026 | |
| 45 | Ricardo Cardenas# | .2254 | 2024 | |
| 46 | Jung-hwan Kwon# | .2252 | 2020 | |
| 47 | Gil Simmons# | .2222 | 2025 |
