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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ronald Bass# | .5772 | 2015 | |
| 2 | Luis Vázquez# | .5299 | 2015 | |
| 3 | César Hernández# | .4528 | 2015 | |
| 4 | Arnold Morrow# | .4293 | 2015 | |
| 5 | Rich Ramey# | .4191 | 2015 | |
| 6 | Víctor Franco# | .4153 | 2015 | |
| 7 | Bill Bugg# | .3829 | 2015 | |
| 8 | Wyatt Drier# | .3265 | 2015 | |
| 9 | León Gómez# | .3174 | 2015 | |
| 10 | Omar Napa# | .3051 | 2015 | |
| 11 | Ralph Petersen# | .2949 | 2015 | |
| 12 | Jorge Valle# | .2888 | 2015 |
