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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Andrés Rivera | 1.079 | 1949-1967 | |
| 2 | Ramón Medina | 1.077 | 1950-1960 | |
| 3 | Wade James | 1.069 | 1959-1963 | |
| 4 | Dean Janzen | 1.068 | 1952-1962 | |
| 5 | Mauro Cardona# | 1.048 | 1972-1975 | |
| 6 | Scott Bailey* | 1.043 | 1943-1957 | |
| 7 | Rafael Ruíz | 1.037 | 1978-1982 | |
| 8 | Bob Webb | 1.027 | 1942-1957 | |
| 9 | Sherwood Wight | 1.026 | 1943-1952 | |
| 9 | Terrence O'Quinn | 1.026 | 1934-1946 | |
| 11 | Joël Roche | 1.024 | 1934-1945 | |
| 11 | Suketsune Hirayama | 1.024 | 1964-1973 | |
| 13 | Luis Campos | 1.023 | 1964-1971 | |
| 14 | Alfredo Ramírez | 1.021 | 1946-1957 | |
| 14 | Herbert Cluff | 1.021 | 1978-1984 | |
| 16 | Alfonso Ríos | 1.020 | 1977-1983 | |
| 16 | Martin Lovenbury | 1.020 | 1946-1953 | |
| 16 | Millard Arnold | 1.020 | 1982-1986 | |
| 19 | Stewart Willis | 1.013 | 1979-1984 | |
| 20 | Carlos Morín# | 1.012 | 1983-1987 | |
| 20 | Cipriano Sansovino | 1.012 | 1979-1986 | |
| 22 | Katsuhito Yamauchi | 1.011 | 1974-1980 | |
| 23 | Cedric Stock | 1.008 | 1934-1940 | |
| 24 | Alfredo Hernández | 1.007 | 1980-1988 | |
| 25 | Franck Bričre | 1.006 | 1971-1976 | |
| 25 | Taylor Chennells* | 1.006 | 1935-1950 | |
| 27 | Ixfensen Mwendapole# | 1.003 | 1986-1990 | |
| 28 | Luis Cavera | 0.997 | 1948-1957 | |
| 29 | Dimitri Zvyagelsky# | 0.996 | 1987-1990 | |
| 30 | Hugo Hergenröther | 0.995 | 1933-1947 | |
| 31 | Jeff Cherry# | 0.994 | 1986-1989 | |
| 32 | Flint O'Herlihy# | 0.990 | 1976-1979 | |
| 33 | Ziyad bin Amr | 0.986 | 1973-1978 | |
| 34 | Tim Ballard | 0.985 | 1954-1962 | |
| 35 | Jake Cooper | 0.983 | 1976-1982 | |
| 36 | Francisco Soto | 0.979 | 1980-1984 | |
| 37 | Aurelio Gonzáles | 0.977 | 1941-1954 | |
| 38 | Jerome Ellis | 0.949 | 1934-1945 | |
| 39 | Christiansen Ernst | 0.946 | 1938-1949 | |
| 40 | Quinton Corrigan | 0.920 | 1946-1953 |
