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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Matt Rolland* | .4595 | 1921-1939 | |
| 2 | Bob Beauchamp | .4479 | 1911-1922 | |
| 3 | Riley Newcombe* | .4031 | 1925-1943 | |
| 4 | Dahal Rowe | .4023 | 1924-1940 | |
| 5 | Bernhard Funk | .3937 | 1935-1946 | |
| 6 | Juan Colón | .3935 | 1958-1971 | |
| 7 | Kuang-an Ow | .3875 | 1947-1960 | |
| 8 | Vasily Jarovtsev | .3807 | 1964-1978 | |
| 9 | Tamasaburo Abe | .3770 | 1947-1962 | |
| 10 | Michel Piat | .3671 | 1940-1953 | |
| 11 | Harry Coleman | .3652 | 1926-1940 | |
| 12 | Arthur Mathan* | .3617 | 1916-1933 | |
| 13 | Frode Bomas* | .3594 | 1955-1972 | |
| 14 | Kane Frankland | .3593 | 1916-1928 | |
| 15 | Carroll Orkney | .3590 | 1954-1965 | |
| 15 | Jorge Medrano* | .3590 | 1921-1937 | |
| 17 | Cristo Gutiérrez | .3586 | 1924-1930 | |
| 18 | Petros Piatkowski* | .3560 | 1967-1979 | |
| 19 | Riley Heaman | .3557 | 1944-1960 | |
| 20 | Hyung-gwang Sim | .3548 | 1951-1965 | |
| 21 | Quentin Cardinale | .3496 | 1936-1946 | |
| 22 | Héctor Ortíz# | .3485 | 1981-1990 | |
| 23 | Roscoe Rand | .3460 | 1924-1934 | |
| 24 | Bronson Bostock | .3450 | 1911-1917 | |
| 25 | Henry Johnston# | .3429 | 1979-1990 | |
| 26 | Tulu Dunde# | .3384 | 1974-1990 | |
| 27 | Daniel Turpin | .3372 | 1915-1923 | |
| 28 | Kane Howard | .3340 | 1955-1961 | |
| 29 | Yves Hoarau | .3336 | 1911-1918 | |
| 30 | Millard Montgomery | .3306 | 1973-1988 | |
| 30 | Máximo Orosco | .3306 | 1967-1972 | |
| 32 | Dean Marchand | .3299 | 1911-1925 | |
| 33 | André Martin | .3244 | 1943-1956 | |
| 34 | Brenden Howson | .3216 | 1957-1967 | |
| 35 | Kristian Sittig | .3201 | 1931-1935 | |
| 36 | Wolde-Selassie Ramadhani | .3125 | 1969-1977 | |
| 37 | Rikiya Sakurai | .3087 | 1961-1966 | |
| 38 | Tabat Komen# | .3049 | 1975-1990 | |
| 39 | Andrés Alfaro | .3043 | 1974-1984 | |
| 40 | Ramón García | .3035 | 1934-1946 | |
| 41 | Mike Lyteman | .3020 | 1929-1935 |
