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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Carroll Kline | .4354 | 2020 | |
| 2 | Roberto Fierro# | .4270 | 2027 | |
| 3 | Roberto Fierro# | .4169 | 2026 | |
| 4 | Mike Peterson | .4024 | 2023 | |
| 5 | Eddie Ménard# | .3973 | 2024 | |
| 6 | Caleb Lee | .3871 | 2020 | |
| 7 | Ramón Morterero# | .3728 | 2029 | |
| 8 | Bob Daugherty# | .3721 | 2029 | |
| 9 | David Tineo# | .3715 | 2029 | |
| 10 | Mike Peterson | .3699 | 2022 | |
| 11 | Dave Orchard | .3678 | 2020 | |
| 12 | Keith Alexander# | .3647 | 2025 | |
| 13 | Jorge Díaz# | .3636 | 2021 | |
| 14 | Terry Conley | .3629 | 2022 | |
| 15 | Ángel Aguilar# | .3610 | 2023 | |
| 16 | Sean Godron# | .3591 | 2026 | |
| 17 | Esteban Garza | .3584 | 2021 | |
| 18 | Manny Valentín# | .3552 | 2023 | |
| 19 | Terry Conley | .3529 | 2021 | |
| 20 | Earl Wiley# | .3526 | 2026 | |
| 21 | Alfonso Enríquez# | .3505 | 2021 | |
| 22 | Shohei Kiyomizu# | .3412 | 2023 | |
| 23 | Greg Gross# | .3369 | 2025 | |
| 24 | Cisco Hernández# | .3355 | 2029 | |
| 25 | José Ramírez | .3311 | 2022 | |
| 26 | Peter Feng# | .3283 | 2029 | |
| 27 | Ron Bunch# | .3282 | 2022 | |
| 28 | Tim Lehman# | .3280 | 2028 | |
| 29 | Sixto Estrada# | .3244 | 2028 | |
| 30 | Wessel Wemerman# | .3234 | 2027 | |
| 31 | Jouo Hirschovits# | .3225 | 2027 | |
| 32 | Félix Medina# | .3205 | 2028 | |
| 33 | Alberto Rodríguez | .3190 | 2025 | |
| 34 | Jack Burton# | .3183 | 2022 | |
| 35 | Ricardo Peña# | .3166 | 2025 | |
| 36 | Rudko Hrnjak# | .3139 | 2026 | |
| 37 | Rafael Delgado# | .3135 | 2023 | |
| 38 | Arturo Ballina | .3125 | 2023 | |
| 39 | Rafael Delgado# | .3122 | 2024 | |
| 40 | Mike Gillespie# | .3101 | 2028 | |
| 41 | Wilson Castillo# | .3099 | 2024 | |
| 41 | Dave Sienna# | .3099 | 2028 | |
| 43 | Jorge Reyes# | .3096 | 2025 | |
| 44 | Charles Mathes# | .3038 | 2020 | |
| 45 | Randy Tucker# | .2995 | 2022 | |
| 46 | Sergio Rodríguez# | .2989 | 2025 | |
| 47 | Curt Monroe | .2985 | 2020 | |
| 48 | António Montés# | .2942 | 2021 | |
| 49 | Gustavo Varela | .2940 | 2021 | |
| 50 | Young-hwan Hyon# | .2889 | 2024 | |
| 51 | Pedro Pérez# | .2857 | 2022 | |
| 52 | Tim Lehman# | .2843 | 2027 | |
| 53 | Luis Freitas# | .2840 | 2026 | |
| 54 | Javier Martínez# | .2703 | 2020 | |
| 55 | Danijel van Aalten# | .2403 | 2028 | |
| 56 | Juan Romero# | .2379 | 2028 |
