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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Jesús Rosas | .4665 | 1959-1965 | |
| 2 | Fernando Ornelas | .4176 | 1981-1989 | |
| 3 | Sal Buckner | .4076 | 1932-1948 | |
| 4 | Jesús Silva | .4036 | 1931-1949 | |
| 5 | Román Martínez* | .3699 | 1933-1953 | |
| 6 | Aidan Naysmith* | .3611 | 1959-1976 | |
| 7 | Louis Lenton | .3571 | 1944-1957 | |
| 8 | Raúl Ramírez | .3555 | 1930-1944 | |
| 9 | Norman McElrath | .3478 | 1943-1954 | |
| 10 | Ben Wood | .3457 | 1973-1979 | |
| 11 | Pedro García | .3433 | 1972-1984 | |
| 12 | Archie Crockford | .3416 | 1945-1953 | |
| 13 | Rafael González | .3385 | 1960-1967 | |
| 14 | Pancho Ramírez | .3344 | 1976-1987 |
