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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Jaime Díaz | .4683 | 1953 | |
| 2 | Francisco Castro | .4669 | 1956 | |
| 3 | Derek Hutchings | .4509 | 1985 | |
| 4 | Cisco Medina# | .4428 | 1986 | |
| 5 | Aaron Fleming | .4394 | 1955 | |
| 6 | Quintiliano Aborim | .4355 | 1967 | |
| 7 | Feitze Heijnen | .4310 | 1938 | |
| 8 | Jeff Thomas | .4241 | 1986 | |
| 9 | Dale Lord | .4231 | 1982 | |
| 10 | Félix Varela | .4218 | 1953 | |
| 11 | Melvin Potts | .4206 | 1921 | |
| 12 | Pancho Gómez | .4198 | 1956 | |
| 13 | Warren Simpson# | .4194 | 1984 | |
| 14 | Héctor Mendoza | .4192 | 1965 | |
| 15 | George Fox | .4184 | 1952 | |
| 16 | George Calhoun | .4178 | 1940 | |
| 17 | Luis Quińonez | .4159 | 1955 | |
| 18 | Romeo Brancati | .4119 | 1962 | |
| 19 | Denny Daugherty | .4094 | 1982 | |
| 20 | Roberto Cantú | .4093 | 1961 | |
| 21 | Paco Chávez | .4081 | 1914 | |
| 22 | Nelson Garza | .4064 | 1955 | |
| 23 | Dave Brooks | .4045 | 1949 | |
| 24 | Eddie Brandt | .4037 | 1968 | |
| 25 | Loren Walters | .4023 | 1982 | |
| 26 | Héctor Mendoza | .3992 | 1963 | |
| 27 | Dane Martínez# | .3990 | 1975 | |
| 28 | Wallace Kramer# | .3988 | 1989 | |
| 29 | Sascha Eckener | .3981 | 1969 | |
| 30 | Floyd Duff | .3975 | 1975 | |
| 31 | José Palmeiro# | .3960 | 1987 | |
| 32 | Douglas Duncombe | .3930 | 1967 | |
| 32 | Jesús Ramírez | .3930 | 1954 | |
| 34 | John Wright | .3924 | 1980 | |
| 35 | Tomás Nava | .3919 | 1988 | |
| 36 | Jeff Thomas | .3916 | 1989 | |
| 37 | Jonathan Dunn | .3912 | 1922 | |
| 38 | Vincent Carpentier | .3908 | 1950 | |
| 39 | Felipe Rosales | .3899 | 1968 | |
| 40 | Gustavo Hernández | .3896 | 1930 | |
| 41 | Diego Torres# | .3891 | 1988 | |
| 42 | Jeff Davis | .3875 | 1915 | |
| 43 | Ramón Ortíz | .3868 | 1976 | |
| 44 | Armando Cardona# | .3853 | 1984 | |
| 45 | Corey Health | .3838 | 1958 | |
| 46 | Pedro Cabrera | .3833 | 1945 | |
| 47 | Chad Scott | .3812 | 1964 | |
| 48 | Chris Wilkerson | .3809 | 1978 | |
| 48 | Robert Lee | .3809 | 1978 | |
| 50 | John Wright | .3803 | 1977 | |
| 51 | Lawrence Jenkins# | .3801 | 1989 | |
| 52 | Iván Reynoso | .3792 | 1947 | |
| 53 | Iván Reynoso | .3766 | 1945 | |
| 54 | Kevin Porter# | .3759 | 1984 | |
| 55 | Chad Scott | .3755 | 1965 | |
| 55 | Karl Schmidt | .3755 | 1965 | |
| 57 | Justin Finley | .3753 | 1950 | |
| 58 | Armando Cardona# | .3748 | 1983 | |
| 59 | Paul Lee | .3737 | 1966 | |
| 60 | Richard Hicks | .3736 | 1976 | |
| 61 | Paco Chávez | .3722 | 1913 | |
| 62 | Terence Greenway# | .3720 | 1990 | |
| 63 | Víctor Vallejo | .3712 | 1952 | |
| 64 | Edward Thomas# | .3710 | 1985 | |
| 65 | António Vélez | .3708 | 1931 | |
| 65 | John Wright | .3708 | 1978 | |
| 67 | Damiano Fiacconi | .3699 | 1965 | |
| 68 | Calvin Davis | .3694 | 1954 | |
| 69 | Héctor Mendoza | .3691 | 1964 | |
| 70 | Enrique Costello | .3677 | 1962 | |
| 70 | Jeff Keys# | .3677 | 1983 | |
| 72 | Diego Hernández# | .3671 | 1983 | |
| 73 | Ron Swallow# | .3667 | 1976 | |
| 73 | Alfredo Cortéz# | .3667 | 1986 | |
| 75 | Orlando González# | .3666 | 1989 | |
| 76 | Peder Borgström | .3665 | 1960 | |
| 77 | Cory Caldicott | .3656 | 1969 | |
| 78 | James Marshall | .3646 | 1933 | |
| 79 | Mike Dempsey | .3645 | 1932 | |
| 80 | José Colmenero# | .3636 | 1988 | |
| 81 | Daniel Gonzáles# | .3619 | 1980 | |
| 81 | Roberto Cantú | .3619 | 1962 | |
| 83 | Brian Thomas | .3617 | 1915 | |
| 84 | Mario Sameno | .3616 | 1975 | |
| 85 | Nakazo Makino | .3614 | 1954 | |
| 86 | Wietze Gerritsen | .3608 | 1951 | |
| 87 | Al Leveque | .3607 | 1939 | |
| 88 | Joe Clayton | .3603 | 1929 | |
| 89 | Tim Gallegos | .3601 | 1947 | |
| 90 | Orlando Machado | .3599 | 1965 | |
| 91 | Domingo Ruíz | .3598 | 1922 | |
| 92 | Edward Thomas# | .3596 | 1986 | |
| 93 | Germán Paz | .3592 | 1955 | |
| 94 | Diego Marino | .3589 | 1967 | |
| 94 | Edward Terry | .3589 | 1956 | |
| 96 | Juan Cortéz | .3581 | 1980 | |
| 97 | Romeo Brancati | .3576 | 1965 | |
| 98 | Richard Wilkerson | .3567 | 1924 | |
| 99 | Paco De La Cruz | .3566 | 1961 | |
| 100 | José Hernández | .3564 | 1977 |
