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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Mario Guerra | .2588 | 1995-2005 | |
| 2 | Bernaldyn Lavado | .2685 | 1967-1976 | |
| 3 | Herbert Gibbs | .2800 | 1957-1962 | |
| 4 | Steve Johnson# | .2807 | 2009-2014 | |
| 5 | Mario Rojas | .2813 | 1966-1970 | |
| 5 | António Cruz | .2813 | 1987-1991 | |
| 7 | Ricardo Velásquez | .2828 | 1971-1985 | |
| 8 | Pancho Villalobos | .2843 | 1995-2003 | |
| 9 | Kevin Cummins | .2899 | 1964-1968 | |
| 10 | Félix Cruz | .2914 | 1963-1972 | |
| 11 | Gilberto Flores | .2930 | 1992-2001 | |
| 12 | José Burra | .2968 | 1964-1973 | |
| 12 | Aurelio Galindo | .2968 | 1972-1976 | |
| 14 | Thomas Lamm | .2991 | 1961-1966 | |
| 15 | Roberto González# | .3033 | 2009-2014 | |
| 16 | Charles Walker | .3082 | 1970-1980 | |
| 17 | Jonathan Collins | .3104 | 1969-1977 | |
| 18 | Tomas Solis | .3136 | 1958-1967 | |
| 19 | Joe McCay | .3138 | 1957-1965 | |
| 20 | Garry Robinson | .3147 | 1970-1974 | |
| 21 | Floyd Petersen | .3149 | 1994-2000 | |
| 22 | Michael Berry | .3225 | 1969-1981 | |
| 23 | Carlos Padilla | .3265 | 2000-2014 | |
| 24 | Jason Griffith | .3273 | 1967-1977 | |
| 25 | Craig Brown | .3297 | 1969-1976 | |
| 26 | Andrew Hong | .3309 | 1958-1964 | |
| 27 | Lyman Palmatier | .3512 | 1963-1968 | |
| 28 | Robert Peterson | .3530 | 1957-1960 | |
| 29 | Luis Reynoso | .3716 | 1965-1969 |
