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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Reynaldo Marroquín# | .4191 | 2056-2061 | |
| 2 | Juan Moreno | .4091 | 2038-2044 | |
| 3 | Jimmy Iddon | .3916 | 2029-2035 | |
| 4 | Juan Rivera | .3761 | 2032-2043 | |
| 5 | Charlie Cox | .3745 | 2040-2051 | |
| 6 | Bruce Hanson | .3724 | 2049-2054 | |
| 7 | Jaime Valdés | .3710 | 2040-2048 | |
| 8 | Juan Muñóz | .3624 | 2043-2054 | |
| 9 | Martín Hernández | .3581 | 2046-2052 | |
| 10 | Esteban Martínez | .3546 | 2042-2048 | |
| 11 | Enrique Benítez | .3519 | 2033-2045 | |
| 12 | Roberto Medina | .3304 | 2044-2050 | |
| 13 | Jim Cummings | .3266 | 2029-2036 | |
| 14 | Mario Juárez | .3240 | 2040-2044 | |
| 15 | Dan Moore | .3171 | 2044-2050 | |
| 16 | Roy Cantrell | .3057 | 2029-2033 | |
| 17 | Aurelio Núñez | .3050 | 2043-2047 | |
| 18 | Manuel Gómez | .2867 | 2047-2051 | |
| 19 | Juan Mendoza | .2250 | 2044-2050 |
