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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Xavier Hernández# | .374 | 2025-2029 | |
| 2 | Mark Melton | .372 | 2017-2027 | |
| 3 | Bob Dickerson# | .361 | 2019-2029 | |
| 4 | Kenzaburo Hori# | .356 | 2019-2027 | |
| 5 | António Granados# | .343 | 2021-2028 | |
| 6 | Curtis Peters# | .338 | 2019-2026 | |
| 7 | Cole Shaffer# | .333 | 2018-2029 | |
| 8 | Wayne Harrison | .324 | 2015-2019 | |
| 9 | Pancho Salaedo# | .304 | 2021-2029 | |
| 10 | Dave Henderson# | .300 | 2019-2028 | |
| 11 | Juan Aguirre# | .292 | 2024-2029 |
