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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Ángel Concepción# | .4399 | 2149 | |
| 2 | George Fisher# | .3514 | 2149 | |
| 3 | Ray Johnson# | .3453 | 2149 | |
| 4 | Rafael Montoya# | .3378 | 2149 | |
| 5 | Han-i Ahn# | .3365 | 2149 | |
| 6 | Francisco Sánchez# | .3353 | 2149 | |
| 7 | Jimmy Robertson# | .3315 | 2149 | |
| 8 | Dale Montés# | .3272 | 2149 | |
| 9 | Sergio Olvera# | .2976 | 2149 | |
| 10 | Alberto Javier# | .2780 | 2149 | |
| 11 | Nguna Bisiligitwa# | .2461 | 2149 | |
| 12 | Mezyan Kaigwa# | .2019 | 2149 |
