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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Junzo Nakamura | .5033 | 1967 | |
| 2 | Terry Bloom | .4622 | 1916 | |
| 3 | Lewis Craigie# | .4549 | 1986 | |
| 4 | Pedro Medrano | .4542 | 1956 | |
| 5 | Pedro Medrano | .4493 | 1955 | |
| 6 | António Rangel# | .4457 | 1984 | |
| 7 | António Flores# | .4435 | 1985 | |
| 8 | Roger Joubert | .4433 | 1937 | |
| 9 | Luis Gil# | .4427 | 1986 | |
| 10 | Ray Moran | .4348 | 1959 | |
| 11 | Cleto Toco | .4327 | 1967 | |
| 12 | Justin Bass# | .4320 | 1982 | |
| 13 | Gray Akerval | .4304 | 1968 | |
| 14 | Frank Mason | .4226 | 1949 | |
| 15 | Raúl Ayers | .4190 | 1958 | |
| 16 | Severin Richter | .4185 | 1954 | |
| 17 | Logan Lindley | .4183 | 1940 | |
| 18 | Merlin Taylor | .4179 | 1977 | |
| 19 | Ray Moran | .4173 | 1958 | |
| 20 | Octávio Ortíz | .4147 | 1958 | |
| 21 | Randy Hartley# | .4130 | 1985 | |
| 22 | Jason Fowler | .4123 | 1961 | |
| 23 | António Peña | .4097 | 1964 | |
| 24 | Juan Peralta | .4096 | 1983 | |
| 25 | Dan Johns | .4094 | 1957 | |
| 26 | Ricardo Vargas | .4088 | 1946 | |
| 27 | Stan Walters | .4087 | 1965 | |
| 28 | Jorge Mendoza# | .4065 | 1984 | |
| 29 | Pedro Torres | .4061 | 1960 | |
| 30 | Pablo Martínez | .4058 | 1962 | |
| 31 | Klaus Maeyer | .4054 | 1944 | |
| 32 | Tim Ware# | .4051 | 1982 | |
| 33 | Bailey Watkinson# | .4048 | 1986 | |
| 34 | Quintino Moroni | .4046 | 1966 | |
| 34 | Kameel Seif al Din | .4046 | 1968 | |
| 36 | Glen Crippen | .4045 | 1960 | |
| 37 | Avery Doss | .4034 | 1975 | |
| 38 | Dale Kennedy | .4004 | 1955 | |
| 39 | Alain Masson | .3996 | 1947 | |
| 40 | Jibril bin Jalil | .3992 | 1969 | |
| 41 | Sidney Russell | .3989 | 1954 | |
| 42 | John Douglas | .3984 | 1924 | |
| 43 | José Morales | .3972 | 1931 | |
| 44 | Paul Warren | .3969 | 1915 | |
| 45 | Leonilde Bach | .3964 | 1980 | |
| 46 | Luis Ortíz | .3958 | 1928 | |
| 47 | Roldão Glria# | .3956 | 1987 | |
| 48 | Jorge Santos# | .3953 | 1987 | |
| 49 | Lorenzo Mercado | .3940 | 1950 | |
| 50 | Zinedine Nyuni | .3935 | 1983 | |
| 51 | Derek Aplin | .3933 | 1950 | |
| 52 | Gene Davis | .3932 | 1959 | |
| 52 | Evan Amphlett# | .3932 | 1990 | |
| 54 | Tim Ware# | .3929 | 1983 | |
| 55 | Jason Fowler | .3927 | 1960 | |
| 56 | Juan García | .3926 | 1987 | |
| 57 | Benedetto Bertone | .3922 | 1961 | |
| 58 | Anthony Williams | .3909 | 1914 | |
| 59 | Octávio Ortíz | .3907 | 1959 | |
| 60 | José Reyes | .3903 | 1976 | |
| 61 | Ma-huan Yei | .3902 | 1956 | |
| 62 | Austin Johnson | .3895 | 1957 | |
| 63 | Arvid van Leeuwen | .3890 | 1938 | |
| 63 | Gunner Locke | .3890 | 1920 | |
| 63 | Robinson Moreno | .3890 | 1917 | |
| 63 | Roberto Cantú | .3890 | 1963 | |
| 67 | Gilberto Romo# | .3884 | 1984 | |
| 68 | Gilberto Romo# | .3883 | 1985 | |
| 69 | Stan Walters | .3877 | 1964 | |
| 70 | Héctor Rivera# | .3875 | 1982 | |
| 71 | Jesús Salas | .3867 | 1925 | |
| 72 | Robert Dormer | .3866 | 1921 | |
| 73 | Miguel Rodríguez | .3857 | 1935 | |
| 74 | Sidney Russell | .3852 | 1955 | |
| 75 | J.R. Lewis | .3848 | 1951 | |
| 76 | Walt Cyr | .3846 | 1981 | |
| 77 | Paul Latham | .3843 | 1983 | |
| 78 | Raúl Ramos | .3842 | 1911 | |
| 79 | Pedro Pérez | .3825 | 1934 | |
| 80 | Félix González | .3824 | 1934 | |
| 80 | Jason O'Mackesey | .3824 | 1963 | |
| 82 | Justin Finley | .3818 | 1951 | |
| 83 | José Carlos Ortíz | .3805 | 1926 | |
| 84 | Bailey Watkinson# | .3803 | 1988 | |
| 85 | Pancho Romero | .3787 | 1942 | |
| 86 | Arvid van Leeuwen | .3781 | 1943 | |
| 87 | Sugimoto Samurakami# | .3780 | 1989 | |
| 88 | Shahnawaz Ansari | .3775 | 1936 | |
| 89 | Nick Little | .3774 | 1937 | |
| 90 | Juan Sosa | .3772 | 1966 | |
| 91 | Elton Kenney | .3770 | 1943 | |
| 92 | Claudio Valdéz | .3766 | 1936 | |
| 93 | Mike Powell# | .3765 | 1988 | |
| 94 | Brant Funk | .3763 | 1968 | |
| 95 | Juan Sosa | .3761 | 1965 | |
| 96 | Clayton Gray | .3752 | 1913 | |
| 97 | José Enríquez | .3744 | 1946 | |
| 98 | Maresuke Kato | .3740 | 1955 | |
| 99 | John King# | .3736 | 1988 | |
| 100 | José Ruíz | .3723 | 1931 |
