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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Alarico Nodin | .4057 | 1948-1960 | |
| 2 | António Rangel# | .4054 | 1984-1988 | |
| 3 | Jaime Ruíz | .3923 | 1979-1990 | |
| 4 | Joe Pérez# | .3915 | 1983-1990 | |
| 5 | Pedro Reyes | .3876 | 1976-1985 | |
| 6 | Glenn Andrews | .3816 | 1975-1985 | |
| 7 | Randy Mallett | .3500 | 1976-1985 | |
| 8 | Gustavo Baca | .3408 | 1951-1959 | |
| 9 | Joaquín Gil | .3319 | 1927-1933 | |
| 10 | Garrick Kitley | .3318 | 1918-1929 | |
| 11 | Juan García | .3302 | 1978-1987 |
