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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Sixto Canarte | 1.070 | 1966-1974 | |
| 2 | Jammu Karila# | 1.063 | 1986-1989 | |
| 3 | Tatu Hakkila# | 1.062 | 1981-1986 | |
| 3 | Xin Mar# | 1.062 | 1985-1988 | |
| 5 | Iemitsu Iwata | 1.058 | 1948-1961 | |
| 6 | Gil Lee | 1.054 | 1942-1950 | |
| 7 | Jesús Zarate | 1.052 | 1952-1958 | |
| 8 | Ramiro Grajeda | 1.042 | 1960-1964 | |
| 8 | Bernard Perrin* | 1.042 | 1938-1953 | |
| 10 | Lu-po-teh Ts'ong | 1.041 | 1973-1978 | |
| 11 | Luis Zamora | 1.036 | 1962-1972 | |
| 11 | Carlos Rodríguez | 1.036 | 1981-1986 | |
| 13 | Brennan Harris | 1.033 | 1973-1979 | |
| 14 | Blaz Ruchendorf | 1.022 | 1960-1973 | |
| 14 | Peter Deakin | 1.022 | 1979-1987 | |
| 16 | Derrick Davis | 1.021 | 1932-1945 | |
| 17 | Fernando Hernández | 1.019 | 1937-1953 | |
| 18 | Jordan MacFeat# | 1.018 | 1979-1990 | |
| 19 | David Johnson | 1.017 | 1963-1972 | |
| 19 | Javier Canó | 1.017 | 1950-1958 | |
| 21 | David Ray | 1.016 | 1973-1981 | |
| 22 | Marco Anger | 1.011 | 1946-1955 | |
| 23 | Jesús Martínez | 1.008 | 1958-1964 | |
| 24 | Harry Shortall | 1.007 | 1935-1948 | |
| 25 | António Cruz | 1.005 | 1961-1968 | |
| 26 | Edgardo Sandoval | 1.004 | 1978-1985 | |
| 26 | Yoelbi Fresneda* | 1.004 | 1934-1951 | |
| 26 | Jack McCoy# | 1.004 | 1982-1989 | |
| 29 | Tony Walter | 1.003 | 1932-1946 | |
| 30 | Daniel Granier | 1.002 | 1952-1961 | |
| 30 | Pablo Córdova | 1.002 | 1953-1960 | |
| 32 | Abelard Buder | 0.994 | 1945-1953 | |
| 33 | António Lucador | 0.990 | 1965-1973 | |
| 34 | Barry Erickson | 0.986 | 1946-1953 | |
| 35 | Stephen Langdon* | 0.975 | 1948-1960 | |
| 36 | Román Martínez* | 0.969 | 1933-1953 | |
| 37 | Derek McAnally | 0.963 | 1983-1989 | |
| 38 | Dominic Berriman | 0.959 | 1934-1950 | |
| 39 | Lorenzo Fernández | 0.956 | 1935-1951 | |
| 40 | Wallace MacDormond | 0.941 | 1959-1968 | |
| 41 | Remke Wolthaus | 0.937 | 1966-1974 |
