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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Esteban Torres | 1.067 | 1916-1931 | |
| 2 | Paul Jarl* | 1.065 | 1915-1931 | |
| 3 | Mike Crum | 1.064 | 1960-1973 | |
| 4 | Gustaf Egberts | 1.052 | 1970-1980 | |
| 4 | Cliff Bailey | 1.052 | 1947-1957 | |
| 6 | Jesús Díaz# | 1.049 | 1983-1991 | |
| 7 | Mauro Cardona# | 1.046 | 1973-1991 | |
| 7 | Juan García | 1.046 | 1931-1941 | |
| 9 | Steve Eberhart | 1.045 | 1957-1965 | |
| 10 | Lancaster Seams | 1.040 | 1958-1974 | |
| 11 | Ricardo Pineda | 1.039 | 1937-1945 | |
| 12 | Jorge Hernández | 1.038 | 1952-1958 | |
| 13 | Eliseu Alisto | 1.037 | 1929-1935 | |
| 13 | Adrián Guerrero | 1.037 | 1953-1962 | |
| 15 | Benjamin Riefenstahl | 1.031 | 1938-1946 | |
| 16 | Tomás Romero | 1.030 | 1943-1952 | |
| 17 | Deniska Darchiashvili# | 1.029 | 1971-1991 | |
| 18 | Magnus Glas# | 1.028 | 1983-1991 | |
| 19 | Kian Rosbotham# | 1.026 | 1982-1988 | |
| 20 | Jesús Liriano | 1.025 | 1980-1986 | |
| 21 | Kazunori Matsumoto | 1.023 | 1918-1926 | |
| 21 | Pepe Fuentes* | 1.023 | 1922-1941 | |
| 23 | Francisco Soto | 1.021 | 1968-1982 | |
| 24 | Freddy Reyes | 1.019 | 1911-1917 | |
| 25 | Drake Day# | 1.017 | 1983-1991 | |
| 25 | Jeffrey Thomas | 1.017 | 1949-1959 | |
| 25 | Russ Pederson | 1.017 | 1930-1938 | |
| 28 | Baltwin Roks | 1.016 | 1985-1990 | |
| 29 | Ed Stewart | 1.015 | 1924-1941 | |
| 30 | Mike Davis | 1.014 | 1912-1924 | |
| 31 | Michael Underwood | 1.013 | 1933-1940 | |
| 31 | Tinbits Blue | 1.013 | 1920-1929 | |
| 33 | José Montero | 1.011 | 1963-1970 | |
| 33 | Miguel Gonzáles | 1.011 | 1912-1918 | |
| 35 | Arturo Colón# | 1.010 | 1987-1991 | |
| 35 | Felipe Sandoval# | 1.010 | 1980-1985 | |
| 37 | Darryl Wolf | 1.008 | 1975-1984 | |
| 38 | Taylor Chennells* | 1.006 | 1943-1945 | |
| 38 | Chad Ramírez# | 1.006 | 1976-1990 | |
| 40 | Arturo Díaz | 1.005 | 1927-1933 | |
| 40 | Júlio Sánchez | 1.005 | 1957-1963 | |
| 42 | Pedro Torres | 1.004 | 1972-1983 | |
| 43 | Bryan Lee | 1.002 | 1975-1981 | |
| 44 | Jorge Maturana | 1.001 | 1975-1981 | |
| 45 | Mike Wiggins# | 0.998 | 1980-1990 | |
| 46 | Sam Morris | 0.996 | 1949-1955 | |
| 46 | Helmut Hoellwarth# | 0.996 | 1977-1991 | |
| 46 | Kauto Talus | 0.996 | 1964-1980 | |
| 49 | Carlos Martínez | 0.994 | 1936-1951 | |
| 50 | Eiske Jiménez | 0.993 | 1972-1987 | |
| 51 | Gary Phillips# | 0.992 | 1979-1986 | |
| 52 | Hector Stufi | 0.991 | 1970-1976 | |
| 53 | Jeremy Allen | 0.988 | 1972-1983 | |
| 54 | Cooper Humphrey | 0.984 | 1973-1988 | |
| 55 | José López | 0.983 | 1917-1924 | |
| 56 | Miguel Gonzáles | 0.981 | 1957-1966 | |
| 57 | Andrés Nava | 0.980 | 1959-1974 | |
| 58 | Lance Kaiser | 0.978 | 1943-1956 | |
| 59 | Ramiro Navarro | 0.971 | 1913-1929 | |
| 60 | Juan Pagán | 0.964 | 1939-1950 | |
| 61 | Yoritoki Suzuki | 0.961 | 1934-1943 | |
| 62 | Dan Barnett | 0.956 | 1946-1953 | |
| 63 | John Giles | 0.952 | 1962-1971 | |
| 64 | Hugh Peck | 0.950 | 1918-1931 | |
| 65 | César Rivera | 0.948 | 1930-1941 | |
| 66 | Rafael López# | 0.945 | 1983-1990 | |
| 67 | Kent Rodríguez | 0.944 | 1942-1952 |
