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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Esteban Espinoza# | .2447 | 2033-2047 | |
| 2 | Addie Joss* | .2511 | 1902-1910 | |
| 3 | Terry Larkin | .2537 | 1878-1879 | |
| 4 | Ed Walsh* | .2576 | 1904-1917 | |
| 5 | Jim Whitney | .2612 | 1881-1885 | |
| 6 | Larry Corcoran | .2621 | 1880-1886 | |
| 7 | Mariano Rivera* | .2627 | 1995-2013 | |
| 8 | Kenley Jansen* | .2641 | 2010-2029 | |
| 9 | Clayton Kershaw* | .2651 | 2008-2027 | |
| 10 | Noah Syndergaard* | .2660 | 2015-2032 | |
| 11 | Brad Louis | .2662 | 2033-2046 | |
| 12 | Doug Boakye# | .2673 | 2035-2045 | |
| 13 | Christy Mathewson* | .2676 | 1900-1916 | |
| 14 | Trevor Hoffman* | .2684 | 1993-2010 | |
| 15 | Mordecai Brown* | .2690 | 1903-1916 | |
| 15 | Juan Ramirez | .2690 | 2024-2038 | |
| 17 | Charlie Ferguson | .2699 | 1884-1887 | |
| 18 | Jeff Putnam# | .2700 | 2036-2047 | |
| 19 | Walter Johnson* | .2728 | 1907-1927 | |
| 20 | Tommy Bond | .2737 | 1877-1881 | |
| 21 | Sandy Koufax* | .2740 | 1955-1966 | |
| 22 | Chris Christenson# | .2741 | 2033-2047 | |
| 23 | Tim Keefe* | .2744 | 1880-1893 | |
| 24 | Pedro Martinez* | .2747 | 1992-2009 | |
| 25 | Ignacio Reyna# | .2755 | 2032-2047 | |
| 25 | Charley Radbourn* | .2755 | 1881-1891 | |
| 27 | Juan Marichal* | .2757 | 1960-1975 | |
| 28 | Fred Goldsmith | .2762 | 1880-1884 | |
| 29 | Conor Billings | .2765 | 2029-2043 | |
| 30 | Deacon Phillippe | .2767 | 1900-1911 | |
| 31 | Joe Meyers# | .2768 | 2033-2047 | |
| 32 | Nick Altrock | .2775 | 1902-1933 | |
| 33 | Babe Adams | .2777 | 1906-1926 | |
| 34 | Rube Waddell* | .2788 | 1900-1910 | |
| 35 | Luis Mendoza | .2789 | 2030-2043 | |
| 36 | Dick Hall | .2804 | 1952-1971 | |
| 37 | Sergio Uribe | .2805 | 2030-2045 | |
| 38 | Frank Owen | .2806 | 1901-1909 | |
| 38 | Fred Glade | .2806 | 1902-1908 | |
| 40 | Reb Russell | .2811 | 1913-1923 | |
| 41 | Pete Alexander* | .2814 | 1911-1930 | |
| 42 | Mike Higgins | .2815 | 2024-2036 | |
| 43 | Cy Young* | .2819 | 1890-1911 | |
| 44 | Jonathan Martin | .2820 | 2023-2039 | |
| 45 | Johan Santana | .2823 | 2000-2012 | |
| 46 | Tom Seaver* | .2824 | 1967-1986 | |
| 47 | Bobby Rackliff | .2827 | 2029-2043 | |
| 48 | Charlie Buffinton | .2828 | 1882-1889 | |
| 48 | Chief Bender* | .2828 | 1903-1925 | |
| 50 | Pud Galvin* | .2830 | 1875-1892 | |
| 51 | Steve Henke# | .2831 | 2039-2047 | |
| 52 | Jared Hicks | .2833 | 2029-2037 | |
| 52 | Joe Wood | .2833 | 1908-1922 | |
| 54 | Noodles Hahn | .2834 | 1899-1906 | |
| 54 | Juan Osorio# | .2834 | 2036-2047 | |
| 54 | Catfish Hunter* | .2834 | 1965-1979 | |
| 57 | Mat Latos | .2840 | 2009-2017 | |
| 57 | Curt Schilling | .2840 | 1988-2007 | |
| 59 | Don Sutton* | .2841 | 1966-1988 | |
| 60 | Jack Pfiester | .2842 | 1903-1911 | |
| 61 | Arturo Castillo | .2843 | 2027-2041 | |
| 62 | Gary Nolan | .2845 | 1967-1977 | |
| 63 | Frank Smith | .2848 | 1904-1912 | |
| 63 | Madison Bumgarner* | .2848 | 2009-2026 | |
| 65 | Luis Samarripa | .2849 | 2032-2039 | |
| 66 | Jacob deGrom | .2850 | 2014-2030 | |
| 67 | Sid Fernandez | .2851 | 1983-1997 | |
| 68 | Debebe Naguib# | .2852 | 2034-2047 | |
| 69 | Hoyt Wilhelm* | .2853 | 1952-1972 | |
| 70 | Andy Messersmith | .2854 | 1968-1979 | |
| 70 | Steve Murphy | .2854 | 2024-2039 | |
| 72 | Fergie Jenkins* | .2857 | 1965-1983 | |
| 72 | Harry Howell | .2857 | 1898-1910 | |
| 74 | Tiny Bonham | .2860 | 1940-1949 | |
| 74 | Doc White | .2860 | 1901-1913 | |
| 76 | Carl Hubbell* | .2863 | 1928-1943 | |
| 77 | Jorge Esquivel | .2866 | 2030-2044 | |
| 78 | Jack Chesbro* | .2868 | 1899-1909 | |
| 79 | John Clarkson* | .2869 | 1882-1894 | |
| 80 | Mekhi Ruise | .2870 | 2022-2039 | |
| 81 | Bret Saberhagen | .2871 | 1984-2001 | |
| 82 | Jorge Morales | .2872 | 2024-2035 | |
| 83 | Jamie Colangelo# | .2877 | 2032-2047 | |
| 84 | Roy Patterson | .2878 | 1901-1907 | |
| 85 | George McQuillan | .2879 | 1907-1918 | |
| 86 | Jeff Tesreau | .2880 | 1912-1918 | |
| 86 | Joe McGinnity* | .2880 | 1900-1908 | |
| 88 | Bruce Sutter* | .2881 | 1976-1988 | |
| 89 | Sam Leever | .2884 | 1898-1910 | |
| 90 | Babe Ruth* | .2885 | 1914-1935 | |
| 90 | Denny McLain | .2885 | 1963-1972 | |
| 90 | Eddie Plank* | .2885 | 1901-1917 | |
| 93 | George Winter | .2887 | 1901-1908 | |
| 93 | Juan Rojas | .2887 | 2030-2044 | |
| 95 | Juan Harnandez | .2888 | 2031-2044 | |
| 96 | Ismael Polanco | .2889 | 2027-2038 | |
| 97 | Francisco Rodriguez | .2892 | 2002-2017 | |
| 98 | Dennis Eckersley* | .2893 | 1975-1998 | |
| 99 | Russ Ford | .2894 | 1909-1913 | |
| 100 | Jose Berrios | .2895 | 2016-2028 |
