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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Antenor Juárez# | .5000 | 1906-1906 | |
| 2 | Brock O'Connell# | .4872 | 1910-1910 | |
| 3 | Teferi Adel# | .4559 | 1906-1910 | |
| 4 | Fernando Hurtado# | .4464 | 1910-1910 | |
| 5 | Min-soo Kim# | .4286 | 1906-1910 | |
| 6 | Telmo Carrascalo# | .4242 | 1910-1910 | |
| 7 | Anthony King# | .4146 | 1906-1910 | |
| 8 | Michael Reid# | .3784 | 1906-1910 | |
| 8 | Héctor Sánchez# | .3784 | 1906-1906 | |
| 10 | Deasún McCarthy# | .3750 | 1906-1910 | |
| 11 | Darren Lynch# | .3529 | 1906-1910 | |
| 12 | Ignacio González# | .3472 | 1906-1910 | |
| 13 | Tom Swyers# | .3438 | 1906-1910 | |
| 14 | Neftalí Olivares# | .3429 | 1910-1910 | |
| 15 | Stane Krušec# | .3404 | 1910-1910 | |
| 16 | Spencer Griffiths# | .3333 | 1910-1910 | |
| 16 | Gerrit Miller# | .3333 | 1910-1910 | |
| 18 | Esquilo Castro# | .2857 | 1906-1906 | |
| 19 | Lino Rosario# | .2683 | 1906-1910 | |
| 20 | Pablo Ramírez# | .2400 | 1910-1910 | |
| 21 | Guy Gauthier# | .2373 | 1906-1910 | |
| 22 | Marcos Frías# | .2308 | 1906-1910 | |
| 22 | Rubén Sagastume# | .2308 | 1906-1906 | |
| 24 | Itbir Jaafar# | .2286 | 1906-1910 | |
| 24 | Martín Piñeda# | .2286 | 1910-1910 | |
| 26 | John Anderson | .1600 | 1906-1906 |
