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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Manny Ibáńez | .4573 | 1955 | |
| 2 | George Hatfield | .4413 | 1947 | |
| 3 | Chad McGuire# | .4356 | 1989 | |
| 4 | Pamphile Morandi | .4352 | 1963 | |
| 5 | John Marshall | .4323 | 1965 | |
| 6 | Alfredo Gonzáles | .4320 | 1960 | |
| 7 | Alfredo Gonzáles | .4300 | 1961 | |
| 8 | Garry Davidson | .4298 | 1962 | |
| 9 | Emílio Garza | .4294 | 1949 | |
| 10 | Júlio Rodríguez# | .4263 | 1987 | |
| 11 | Paul Heller | .4211 | 1912 | |
| 12 | Joe Padgett | .4189 | 1940 | |
| 13 | Tim Murdock | .4171 | 1934 | |
| 14 | Stan McKnight | .4167 | 1964 | |
| 15 | Roberto Hernández | .4123 | 1916 | |
| 16 | Bryant Thomas | .4116 | 1954 | |
| 17 | Dwight Baker | .4114 | 1954 | |
| 18 | Gui-fan Ou | .4110 | 1983 | |
| 19 | Todd Adams | .4098 | 1969 | |
| 20 | Jing-zhong Zhŕo | .4070 | 1920 | |
| 21 | Trevor den Braber# | .4065 | 1988 | |
| 22 | José Trevino | .4062 | 1955 | |
| 23 | Mirko Ohrenstiel | .4037 | 1933 | |
| 24 | Charlie Alvarado | .4024 | 1951 | |
| 24 | Carlos Pérez | .4024 | 1953 | |
| 26 | Gideon Bird | .4014 | 1917 | |
| 27 | José Grano | .4004 | 1959 | |
| 28 | Shogo Kan | .3996 | 1975 | |
| 29 | Frank Frye | .3988 | 1914 | |
| 30 | Roberto Maldonado | .3986 | 1950 | |
| 31 | José Gonzáles | .3981 | 1951 | |
| 32 | Branco Triet | .3973 | 1954 | |
| 33 | Larry Adams | .3969 | 1956 | |
| 34 | Shogo Kan | .3963 | 1978 | |
| 35 | Francisco Peńa | .3943 | 1967 | |
| 36 | Francisco Villegas | .3926 | 1924 | |
| 37 | Hastings Zoeber | .3923 | 1975 | |
| 38 | Ron Best | .3900 | 1912 | |
| 39 | Emory Watkins | .3899 | 1929 | |
| 40 | Miguel Angel Torres | .3888 | 1946 | |
| 41 | George Hatfield | .3872 | 1945 | |
| 42 | José Luna | .3868 | 1918 | |
| 42 | Máximo Quińones | .3868 | 1955 | |
| 44 | Mark Quested | .3862 | 1958 | |
| 45 | Alfredo Gonzáles | .3857 | 1959 | |
| 46 | Taylor Greene# | .3852 | 1987 | |
| 46 | Ed Bowie | .3852 | 1920 | |
| 48 | Julian Myers | .3846 | 1937 | |
| 49 | Jesús Chávez# | .3828 | 1989 | |
| 50 | Carlos Álvarez | .3818 | 1936 | |
| 51 | Jesús Chávez# | .3814 | 1990 | |
| 52 | Everton Breary | .3811 | 1918 | |
| 53 | Orlando Gómez# | .3804 | 1986 | |
| 54 | Frank Frye | .3794 | 1913 | |
| 55 | Arturo León | .3787 | 1964 | |
| 56 | Kelvin Olthuis | .3782 | 1944 | |
| 56 | Bob Ryan# | .3782 | 1981 | |
| 58 | Carlos Machado | .3780 | 1983 | |
| 59 | Ramón Sáenz | .3778 | 1953 | |
| 60 | Dwight Baker | .3768 | 1953 | |
| 61 | Mark Quested | .3765 | 1961 | |
| 62 | Francisco Villegas | .3763 | 1923 | |
| 63 | Francisco Villegas | .3762 | 1925 | |
| 64 | Julian Myers | .3757 | 1938 | |
| 65 | Patrick Smith | .3755 | 1957 | |
| 66 | Jack Allen | .3753 | 1950 | |
| 67 | Dan O'Halloran | .3705 | 1982 | |
| 68 | Eddie Hawkins | .3698 | 1921 | |
| 69 | Raúl González# | .3694 | 1980 | |
| 70 | Lane Smith | .3689 | 1933 | |
| 71 | Ken McKinney# | .3687 | 1984 | |
| 72 | Michael Schultz# | .3681 | 1988 | |
| 73 | Siu-chung Hung | .3677 | 1932 | |
| 74 | Patrick Higgins | .3673 | 1975 | |
| 75 | Julian Fields | .3658 | 1915 | |
| 76 | Javier De La Cruz | .3657 | 1941 | |
| 77 | José Ortíz | .3656 | 1988 | |
| 78 | Willie Moore | .3655 | 1961 | |
| 79 | Kidlat Villaluz | .3653 | 1950 | |
| 79 | Reynaldo De La Rosa | .3653 | 1946 | |
| 81 | Conner McKnight | .3635 | 1950 | |
| 82 | Anthony Edwards | .3629 | 1954 | |
| 83 | Mike Collier | .3627 | 1946 | |
| 84 | Ken McKinney# | .3625 | 1985 | |
| 85 | Clarence Flint | .3623 | 1968 | |
| 86 | André Denis | .3620 | 1943 | |
| 87 | Baltwin Young | .3598 | 1976 | |
| 88 | Gonzalo Rodríguez | .3588 | 1942 | |
| 89 | Jesús Torres | .3583 | 1926 | |
| 89 | Pamphile Morandi | .3583 | 1962 | |
| 91 | James Brewton | .3579 | 1948 | |
| 92 | Dan Hummel | .3578 | 1922 | |
| 92 | Terry van den Burg | .3578 | 1930 | |
| 94 | Chase Nichols# | .3576 | 1989 | |
| 95 | Juan Negrete | .3570 | 1986 | |
| 96 | Ken McKinney# | .3560 | 1983 | |
| 97 | Reţat Cig | .3559 | 1918 | |
| 98 | Jack Allen | .3557 | 1954 | |
| 99 | Tsuneyo Daijo | .3554 | 1934 | |
| 100 | Jeff Wagner | .3548 | 1941 |
