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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Conrad Pratt | .4365 | 2042-2048 | |
| 2 | Héctor Muñóz | .4240 | 2018-2027 | |
| 3 | Guillermo Gabriel | .4039 | 1999-2012 | |
| 4 | Chris Josey | .3934 | 1998-2005 | |
| 5 | Frank Moore | .3914 | 2002-2012 | |
| 6 | Michael Younger | .3842 | 2027-2030 | |
| 7 | Eric Jewell | .3814 | 2018-2022 | |
| 8 | Félix Marino | .3718 | 2008-2012 | |
| 9 | Jacob Black | .3683 | 1997-2004 | |
| 10 | Tomás Madrid | .3637 | 2029-2031 | |
| 11 | Andrés Alvarado | .3623 | 2016-2020 | |
| 12 | Raghib bin Nasim | .3608 | 2043-2054 | |
| 13 | Carlos Romano | .3600 | 2013-2017 | |
| 14 | Miguel Briviesca | .3570 | 2026-2029 | |
| 15 | Ricardo Vázquez | .3554 | 2044-2050 | |
| 16 | Miguel Salcido | .3526 | 2000-2006 | |
| 17 | Alonso Fernández | .3487 | 2020-2026 | |
| 17 | Ramiro Alvarado | .3487 | 2004-2009 | |
| 19 | Roderick Adams | .3473 | 1998-2012 | |
| 20 | José Muñóz | .3391 | 2014-2018 | |
| 21 | Pablo Martínez | .3385 | 2015-2021 | |
| 22 | Luis Germán | .3343 | 2026-2029 | |
| 23 | Ron Larson | .3314 | 2020-2027 | |
| 24 | Lonnie Warren | .3285 | 1998-2006 | |
| 25 | Manuel Cruz | .3220 | 2015-2019 | |
| 26 | Felipe Ortíz | .2422 | 2031-2034 |
