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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | António Martínez | .385 | 2024-2037 | |
| 1 | Tamasaburo Kato | .385 | 2021-2037 | |
| 3 | Juan Jose Ayala | .383 | 2025-2041 | |
| 4 | Sake van Arem | .354 | 2023-2041 | |
| 5 | David Edwards | .350 | 2019-2035 | |
| 5 | Bob Campbell | .350 | 2014-2025 | |
| 7 | Ray Sears* | .349 | 2013-2028 | |
| 8 | Arturo Rodríguez | .342 | 2026-2038 | |
| 9 | Herman Hayes | .333 | 2015-2029 | |
| 10 | Nate Cates | .330 | 2016-2028 | |
| 11 | Hugh Mungus# | .327 | 2027-2041 | |
| 12 | Billy Dotson# | .325 | 2030-2041 | |
| 13 | Bartolo Morales | .314 | 2022-2038 | |
| 14 | Ed Hopkins | .311 | 2018-2027 | |
| 15 | Gabriel Rodríguez | .276 | 2018-2029 |
