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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Víctor Ramírez* | .4838 | 1948 | |
| 2 | Víctor Ramírez* | .4780 | 1949 | |
| 3 | Víctor Ramírez* | .4707 | 1950 | |
| 4 | Víctor Ramírez* | .4688 | 1954 | |
| 5 | Ross Pavey | .4617 | 1921 | |
| 6 | Ross Pavey | .4534 | 1920 | |
| 7 | Teok-kyu On* | .4498 | 1926 | |
| 8 | Víctor Ramírez* | .4490 | 1959 | |
| 9 | Tonny van der Ban | .4432 | 1936 | |
| 10 | Ross Pavey | .4398 | 1925 | |
| 11 | Víctor Ramírez* | .4383 | 1958 | |
| 12 | Ross Pavey | .4354 | 1919 | |
| 13 | Tyco Flats* | .4330 | 1980 | |
| 14 | Anastagio Colombo | .4310 | 1950 | |
| 15 | Víctor Ramírez* | .4278 | 1947 | |
| 16 | Derek Conner | .4258 | 1922 | |
| 17 | Carlos Barrera | .4220 | 1951 | |
| 18 | Derek Conner | .4216 | 1921 | |
| 19 | Paul Jones | .4180 | 1977 | |
| 20 | Tyco Flats* | .4173 | 1973 | |
| 21 | António Ramírez | .4135 | 1942 | |
| 22 | Pancho Gómez | .4131 | 1973 | |
| 23 | Carlos Barrera | .4111 | 1949 | |
| 24 | Víctor Ramírez* | .4103 | 1957 | |
| 25 | Víctor Ramírez* | .4099 | 1956 | |
| 26 | Víctor Ramírez* | .4092 | 1953 | |
| 27 | Víctor Ramírez* | .4086 | 1952 | |
| 28 | Víctor Ramírez* | .4077 | 1946 | |
| 29 | Dave Pye | .4057 | 1928 | |
| 30 | António Ramírez | .4051 | 1943 | |
| 31 | António Ramírez | .4041 | 1944 | |
| 32 | Perry Wright | .4023 | 1933 | |
| 33 | Vicente Martínez | .4015 | 1964 | |
| 34 | Tyco Flats* | .3992 | 1978 | |
| 35 | Kuang Kim | .3990 | 1920 | |
| 36 | Shawn Wilson# | .3983 | 1984 | |
| 37 | Kuang Kim | .3982 | 1919 | |
| 38 | Tyco Flats* | .3977 | 1975 | |
| 39 | Paul Jones | .3964 | 1984 | |
| 40 | Street Shepard* | .3962 | 1937 | |
| 41 | Rubén Manuel | .3953 | 1970 | |
| 42 | Iestyn Salthouse | .3947 | 1917 | |
| 42 | David González | .3947 | 1947 | |
| 44 | Rex Baldwin | .3943 | 1973 | |
| 45 | Mateo Ottens | .3939 | 1978 | |
| 46 | Rob Ávila# | .3934 | 1990 | |
| 47 | Derek Conner | .3921 | 1920 | |
| 48 | Tyco Flats* | .3902 | 1979 | |
| 49 | Richard Rowland | .3898 | 1954 | |
| 50 | Iestyn Salthouse | .3894 | 1916 | |
| 51 | Tonny van der Ban | .3892 | 1938 | |
| 52 | Tyco Flats* | .3888 | 1976 | |
| 53 | Ross Pavey | .3879 | 1924 | |
| 54 | Wop Ouwens# | .3876 | 1987 | |
| 55 | Tyco Flats* | .3868 | 1972 | |
| 56 | Paul Jones | .3863 | 1982 | |
| 57 | Rob Ávila# | .3858 | 1988 | |
| 58 | Vicente Martínez | .3852 | 1965 | |
| 59 | António Ramírez | .3851 | 1947 | |
| 60 | Rob Ávila# | .3849 | 1987 | |
| 61 | Derek Conner | .3845 | 1929 | |
| 62 | Chuck Watson | .3837 | 1974 | |
| 63 | Frederick Bradshaw | .3836 | 1913 | |
| 64 | António Ramírez | .3829 | 1940 | |
| 65 | Clay Allison | .3827 | 1979 | |
| 66 | Cole Garnier | .3824 | 1980 | |
| 67 | Roberto Mendoza | .3817 | 1950 | |
| 68 | Pedro Andrade | .3813 | 1965 | |
| 69 | Weston Hale | .3805 | 1958 | |
| 69 | Zacarías Vargas | .3805 | 1934 | |
| 69 | Clay Allison | .3805 | 1977 | |
| 72 | Albert McMurrich | .3801 | 1914 | |
| 73 | Paul Jones | .3800 | 1979 | |
| 74 | António Ramírez | .3793 | 1946 | |
| 74 | Street Shepard* | .3793 | 1940 | |
| 76 | Przemo Sbroczynski | .3785 | 1975 | |
| 77 | Perry Wright | .3782 | 1930 | |
| 78 | Ramón Serrano | .3774 | 1915 | |
| 79 | Francisco González* | .3767 | 1932 | |
| 80 | Ross Pavey | .3765 | 1922 | |
| 80 | Juan Rosas | .3765 | 1949 | |
| 82 | Mateo Ottens | .3761 | 1979 | |
| 82 | Brad Atkinson | .3761 | 1913 | |
| 84 | Derek Conner | .3753 | 1928 | |
| 84 | Yancy Jarl* | .3753 | 1920 | |
| 86 | Ramón Serrano | .3747 | 1920 | |
| 87 | Kuang Kim | .3740 | 1924 | |
| 88 | Paul Jones | .3735 | 1976 | |
| 89 | Paul Jones | .3734 | 1980 | |
| 89 | Weston Hale | .3734 | 1960 | |
| 91 | Tyco Flats* | .3732 | 1981 | |
| 92 | Frederick Bradshaw | .3726 | 1916 | |
| 93 | António Ramírez | .3722 | 1945 | |
| 94 | Paul Jones | .3714 | 1975 | |
| 95 | Francisco López | .3713 | 1970 | |
| 96 | Tyco Flats* | .3709 | 1982 | |
| 97 | Tom Boyd | .3701 | 1916 | |
| 98 | Tim Gallegos | .3699 | 1954 | |
| 99 | Wop Ouwens# | .3696 | 1985 | |
| 100 | Charlie Chapman | .3688 | 1935 |
