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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Zuo-qian Lee | 1.228 | 1937 | |
| 2 | Mike Carson | 1.222 | 1918 | |
| 3 | Quinn Neal | 1.220 | 1972 | |
| 4 | Mike Urmston Jr. | 1.207 | 1958 | |
| 5 | Héctor Herrera | 1.203 | 1941 | |
| 6 | Gabriel Rojas | 1.200 | 1964 | |
| 7 | Masatake Nishimura | 1.197 | 1944 | |
| 8 | Francisco Valenzuela | 1.182 | 1961 | |
| 9 | Roberto Pinto | 1.169 | 1916 | |
| 10 | Lou Stephens | 1.168 | 1955 | |
| 10 | Lynn Salazar# | 1.168 | 1985 | |
| 12 | Luis Quintero | 1.160 | 1969 | |
| 13 | Yuki Matsushita | 1.154 | 1956 | |
| 14 | Francisco Valenzuela | 1.152 | 1962 | |
| 15 | Christian Wilson | 1.142 | 1965 | |
| 16 | Masaru Kimura | 1.137 | 1939 | |
| 17 | Mike Urmston Jr. | 1.133 | 1959 | |
| 18 | Rafael Martínez* | 1.130 | 1922 | |
| 19 | Pedro Martínez | 1.120 | 1940 | |
| 20 | Feitze Keijzer | 1.117 | 1917 | |
| 21 | Álex Lucero | 1.116 | 1954 | |
| 22 | José Bonillo | 1.115 | 1959 | |
| 23 | Hoyt Arnold | 1.113 | 1924 | |
| 24 | John Miller | 1.110 | 1919 | |
| 25 | Fidelio Coriolano | 1.108 | 1911 | |
| 26 | Rhys Manton | 1.106 | 1968 | |
| 27 | Ernest Snow | 1.105 | 1978 | |
| 27 | Juan Valentín | 1.105 | 1957 | |
| 29 | Bill Bruno | 1.104 | 1962 | |
| 30 | Theodore Dobson | 1.103 | 1951 | |
| 31 | Jun Sasaki | 1.102 | 1938 | |
| 32 | Juan Pérez | 1.101 | 1946 | |
| 33 | Yin-ti Phan | 1.099 | 1983 | |
| 34 | Mu'ammar Zahor# | 1.098 | 1983 | |
| 35 | Germán Valenzuela | 1.097 | 1935 | |
| 36 | Dave Smallwood | 1.096 | 1936 | |
| 37 | Forest Neal | 1.095 | 1915 | |
| 37 | Quinn Neal | 1.095 | 1973 | |
| 37 | Ryan Hale | 1.095 | 1930 | |
| 37 | Toby Carrington | 1.095 | 1930 | |
| 41 | Rob Wheeler | 1.094 | 1960 | |
| 42 | Dan Miller | 1.090 | 1947 | |
| 42 | Sergio Berrios | 1.090 | 1935 | |
| 42 | Jorge Alvarado | 1.090 | 1964 | |
| 45 | Santiago Herrera | 1.089 | 1977 | |
| 45 | Odoardo Serra | 1.089 | 1960 | |
| 47 | Doug Rivas | 1.083 | 1928 | |
| 48 | Santiago Herrera | 1.081 | 1985 | |
| 49 | Nakazo Suzuki | 1.080 | 1927 | |
| 49 | Kip Richmond | 1.080 | 1917 | |
| 51 | Ernesto Gámez | 1.079 | 1975 | |
| 52 | Ron Marks | 1.075 | 1960 | |
| 52 | Duane Kennedy | 1.075 | 1961 | |
| 52 | Greg Owens | 1.075 | 1933 | |
| 55 | Norman Miller | 1.071 | 1927 | |
| 56 | Seung-hwa Yi | 1.070 | 1975 | |
| 56 | Stuart Hutt# | 1.070 | 1989 | |
| 58 | Roosevelt Nelson | 1.069 | 1947 | |
| 58 | Juan Vargas | 1.069 | 1941 | |
| 60 | Santiago Herrera | 1.068 | 1976 | |
| 60 | Cristián Trujillo | 1.068 | 1951 | |
| 60 | Randall Watson | 1.068 | 1963 | |
| 63 | Ernest Snow | 1.065 | 1977 | |
| 64 | Mu'ammar Zahor# | 1.063 | 1982 | |
| 65 | Héctor Guerrero | 1.062 | 1939 | |
| 65 | Curt Williams# | 1.062 | 1990 | |
| 67 | Alfredo Romero | 1.061 | 1981 | |
| 68 | Curt Brown | 1.060 | 1919 | |
| 68 | Clemente Binaghi | 1.060 | 1956 | |
| 70 | Jorge Luna | 1.059 | 1946 | |
| 71 | Alfonso Sanora | 1.058 | 1965 | |
| 72 | Roland Williamson | 1.057 | 1966 | |
| 72 | Lorenzo Vega | 1.057 | 1986 | |
| 72 | Roberto Castro | 1.057 | 1973 | |
| 72 | Nathan Wigley | 1.057 | 1945 | |
| 76 | Carl Bradley | 1.056 | 1970 | |
| 76 | Jorge Ramírez# | 1.056 | 1988 | |
| 78 | José Trinidad | 1.054 | 1918 | |
| 79 | Luis Ramos# | 1.051 | 1984 | |
| 79 | Theodore Dobson | 1.051 | 1950 | |
| 81 | Gonzalo Mora | 1.050 | 1929 | |
| 81 | Michael Craft | 1.050 | 1939 | |
| 83 | Peter Bell | 1.049 | 1920 | |
| 84 | Dan Bryant | 1.048 | 1972 | |
| 84 | Chris McCoy | 1.048 | 1915 | |
| 84 | Mun-wah Shui | 1.048 | 1915 | |
| 84 | Don Doyle | 1.048 | 1934 | |
| 88 | Juan García | 1.047 | 1951 | |
| 88 | José Nieves | 1.047 | 1920 | |
| 88 | Carlos Martínez | 1.047 | 1970 | |
| 88 | Alonso Jefferson | 1.047 | 1924 | |
| 92 | Ernest Snow | 1.046 | 1975 | |
| 92 | Andrew Solley | 1.046 | 1914 | |
| 94 | Arnold Maddox | 1.045 | 1926 | |
| 95 | Román Padilla# | 1.044 | 1990 | |
| 96 | Manuel Muñóz | 1.043 | 1949 | |
| 96 | Lucas Larson | 1.043 | 1971 | |
| 96 | Ken Gardner | 1.043 | 1974 | |
| 99 | George Goodwin | 1.042 | 1976 | |
| 100 | César Gil | 1.040 | 1954 |
