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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Jeff Silver | .3901 | 1945-1958 | |
| 2 | Talbot Rougier | .3788 | 1960-1969 | |
| 3 | Jorge Barrón | .3727 | 1961-1967 | |
| 4 | Jorge Guzmán# | .3705 | 1980-1990 | |
| 5 | Charles Hitchcock | .3628 | 1929-1939 | |
| 6 | Bert Dibb | .3593 | 1920-1930 | |
| 7 | Kenny Schmidt | .3509 | 1924-1934 | |
| 8 | Floyd Conroy | .3474 | 1937-1948 | |
| 9 | Aubrey Bergeron# | .3418 | 1977-1990 | |
| 10 | Tatsuya Watanabe | .2976 | 1936-1947 |
