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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Tony Carmona | .4565 | 2011 | |
| 2 | Ramón Estrada | .4292 | 2010 | |
| 3 | Tony Carmona | .4273 | 2013 | |
| 4 | Tony Carmona | .4170 | 2010 | |
| 5 | Tony Carmona | .4159 | 2014 | |
| 6 | Tony Carmona | .4034 | 2009 | |
| 7 | Júlio Gonzáles# | .3990 | 2041 | |
| 8 | Ramón Estrada | .3889 | 2009 | |
| 9 | Ramón Estrada | .3886 | 2017 | |
| 10 | Tony Carmona | .3840 | 2015 | |
| 11 | Luis Salazar# | .3830 | 2038 | |
| 12 | Xavier Vázquez | .3801 | 2012 | |
| 13 | Tony Carmona | .3789 | 2007 | |
| 14 | Ramón Estrada | .3780 | 2012 | |
| 15 | Tony Carmona | .3766 | 2008 | |
| 16 | Rafael Delgado# | .3687 | 2041 | |
| 17 | Ramón Estrada | .3617 | 2008 | |
| 18 | Carlos Aguilera | .3565 | 2022 | |
| 19 | Xavier Vázquez | .3427 | 2013 | |
| 20 | Júlio Gonzáles# | .3417 | 2039 | |
| 21 | Rafael Delgado# | .3416 | 2038 | |
| 22 | Júlio Gonzáles# | .3400 | 2038 | |
| 23 | Rafael Delgado# | .3367 | 2039 | |
| 24 | Ramón Estrada | .3277 | 2007 | |
| 25 | Rafael Delgado# | .3247 | 2035 | |
| 26 | Rafael Delgado# | .3235 | 2040 | |
| 27 | José Aquino# | .3182 | 2035 | |
| 28 | Carlos Aguilera | .3175 | 2026 | |
| 29 | Ramón Estrada | .3171 | 2018 | |
| 30 | Pedro Rojas | .3119 | 2007 | |
| 31 | Carlos Aguilera | .2925 | 2021 | |
| 32 | Carlos Aguilera | .2857 | 2027 | |
| 33 | José Aquino# | .2775 | 2036 | |
| 34 | José Aquino# | .2698 | 2040 | |
| 35 | Carlos Aguilera | .2536 | 2024 | |
| 36 | César Tirado | .2513 | 2016 | |
| 37 | Carlos Aguilera | .2475 | 2025 |
