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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Postseason Career Leaderboard |
|---|---|---|---|---|
| 1 | Sixto Álvarez | .6800 | 2024 | |
| 2 | Pedro Moreno | .6190 | 2015 | |
| 3 | Noel Ballard* | .6087 | 2017 | |
| 3 | Ron Bascombe | .6087 | 2018 | |
| 5 | Melvin Castro* | .6053 | 2026 | |
| 6 | Daniel Joseph | .6000 | 2041 | |
| 6 | Terumoto Kurihara | .6000 | 2030 | |
| 8 | Colin O'Connell | .5714 | 2039 | |
| 8 | Daniel Page | .5714 | 2046 | |
| 8 | Mario Castillo | .5714 | 2030 | |
| 11 | Stu Hamilton# | .5676 | 2050 | |
| 12 | Juan Sánchez | .5667 | 2017 | |
| 13 | Billy Dotson | .5652 | 2034 | |
| 13 | Júlio Sahagún# | .5652 | 2044 | |
| 13 | Roberto Salazar | .5652 | 2020 | |
| 16 | Jonathan Cook | .5600 | 2028 | |
| 17 | Melvin Castro* | .5574 | 2030 | |
| 18 | Jorge Barrios | .5556 | 2033 | |
| 18 | Mal Bussard | .5556 | 2018 | |
| 20 | José Rodríguez | .5526 | 2018 | |
| 21 | Lester Threlfall# | .5510 | 2043 | |
| 22 | Obidiah Lewis | .5507 | 2035 | |
| 23 | Ed Anderson | .5500 | 2020 | |
| 24 | Craig Woods | .5484 | 2036 | |
| 25 | Michael Greene* | .5455 | 2017 | |
| 25 | Ye Der | .5455 | 2018 | |
| 25 | John Ennis | .5455 | 2034 | |
| 28 | Eddie Flynn | .5405 | 2026 | |
| 29 | Kanko Umaba | .5385 | 2035 | |
| 30 | Lawrence Bell | .5357 | 2018 | |
| 31 | Noel Ballard* | .5312 | 2026 | |
| 31 | Craig Woods | .5312 | 2046 | |
| 33 | Kumanosuke Abe | .5238 | 2031 | |
| 33 | Dave Yates | .5238 | 2031 | |
| 33 | José Álvarez | .5238 | 2017 | |
| 33 | Michael Greene* | .5238 | 2016 | |
| 33 | Johnny Hernández | .5238 | 2021 | |
| 33 | Ruff McGruffin# | .5238 | 2045 | |
| 33 | Kieran Hansen# | .5238 | 2039 | |
| 33 | Jorge Barrios | .5238 | 2025 | |
| 33 | Cooper Lowe | .5238 | 2038 | |
| 33 | Tomás Gonzáles | .5238 | 2019 | |
| 43 | Leonardo López | .5217 | 2017 | |
| 43 | Brad Stannard# | .5217 | 2048 | |
| 43 | Michael Neely | .5217 | 2029 | |
| 43 | Jerry Yates | .5217 | 2039 | |
| 43 | Robbie Roach | .5217 | 2017 | |
| 48 | Manoo Satyavrat | .5200 | 2041 | |
| 48 | Brian O'Brian | .5200 | 2017 | |
| 48 | Pepe Savinon# | .5200 | 2047 | |
| 51 | Roberto Rodríguez | .5185 | 2016 | |
| 51 | Craig Morgan | .5185 | 2034 | |
| 53 | David Smith* | .5172 | 2025 | |
| 54 | Koryusai Ohayashi# | .5128 | 2041 | |
| 55 | Ron Bernard | .5062 | 2032 | |
| 56 | Bill Taylor | .5000 | 2022 | |
| 56 | Obidiah Lewis | .5000 | 2039 | |
| 56 | Harry Fuller | .5000 | 2018 | |
| 56 | Wilbert Carter | .5000 | 2029 | |
| 56 | Bartolo Soto | .5000 | 2039 | |
| 56 | Wook-jin Pae | .5000 | 2015 | |
| 56 | Matthieu Servergnini | .5000 | 2017 | |
| 56 | Ijsbrand Erkelens | .5000 | 2034 | |
| 56 | César Durán | .5000 | 2020 | |
| 56 | Count Dante | .5000 | 2024 | |
| 56 | Carlos Rodríguez | .5000 | 2025 | |
| 56 | Luis Muñóz | .5000 | 2018 | |
| 56 | Dong-joon Ch'oe | .5000 | 2020 | |
| 56 | Victor Adams | .5000 | 2024 | |
| 56 | Palaie Gaoteote | .5000 | 2036 | |
| 56 | José Peña | .5000 | 2018 | |
| 56 | Juan Romero# | .5000 | 2048 | |
| 56 | Brad Elmore | .5000 | 2023 | |
| 56 | Jorge Mojica | .5000 | 2023 | |
| 56 | Edgar Baeza | .5000 | 2041 | |
| 56 | Brett Callison | .5000 | 2030 | |
| 56 | Kameron Guangorena# | .5000 | 2035 | |
| 56 | Joey Coco | .5000 | 2034 | |
| 56 | Manu Pakkarinen | .5000 | 2041 | |
| 56 | John Aston | .5000 | 2024 | |
| 56 | Pancho García | .5000 | 2018 | |
| 82 | Sadatake Abe | .4923 | 2039 | |
| 83 | Bryan Manning | .4878 | 2018 | |
| 84 | Arnold Giroux | .4872 | 2033 | |
| 84 | Maema Njongmeta# | .4872 | 2046 | |
| 86 | António Mendoza | .4857 | 2031 | |
| 87 | José Lozano | .4848 | 2020 | |
| 88 | Arturo Guzmán | .4839 | 2017 | |
| 89 | José Valéncia | .4833 | 2031 | |
| 90 | Wilfrid Savary | .4828 | 2020 | |
| 90 | Wilbur Davis | .4828 | 2030 | |
| 90 | Steve Scott# | .4828 | 2047 | |
| 90 | Arturo Rodríguez | .4828 | 2030 | |
| 94 | Melvin Castro* | .4824 | 2021 | |
| 95 | José Rodríguez | .4815 | 2017 | |
| 95 | Kenzaburo Hori | .4815 | 2024 | |
| 97 | Ramiro Salazar | .4808 | 2017 | |
| 98 | Mike Ríos# | .4805 | 2043 | |
| 98 | Jonas van Claveren# | .4805 | 2041 | |
| 98 | Félix Pérez | .4805 | 2021 |
