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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Raúl Salazar | 1.154 | 1921 | |
| 2 | Cristián Betancourt | 1.153 | 1968 | |
| 2 | Armando Alvarado | 1.153 | 1956 | |
| 4 | Álvaro Ortíz | 1.139 | 1951 | |
| 5 | Luis Hernández | 1.129 | 1969 | |
| 6 | Pancho Méndez | 1.128 | 1930 | |
| 7 | Ethan Opie | 1.127 | 1961 | |
| 8 | Cristián Betancourt | 1.126 | 1969 | |
| 9 | John Giles | 1.120 | 1960 | |
| 10 | Roberto Baudin | 1.118 | 1964 | |
| 11 | Alberto Ayala | 1.109 | 1940 | |
| 11 | Christian Joyce | 1.109 | 1968 | |
| 13 | Conan Mercer | 1.107 | 1915 | |
| 13 | Liam MacClelland | 1.107 | 1937 | |
| 15 | Matt MacGruder | 1.103 | 1923 | |
| 16 | Cliff Bailey | 1.102 | 1946 | |
| 17 | Raúl Salazar | 1.101 | 1920 | |
| 18 | Casper Versaal | 1.098 | 1950 | |
| 19 | Arturo Guerra | 1.096 | 1966 | |
| 20 | Juan Ayala | 1.092 | 1960 | |
| 21 | Tatsuzo Nakamura | 1.090 | 1966 | |
| 21 | Cisco Sutil | 1.090 | 1965 | |
| 21 | Ricardo Pineda | 1.090 | 1935 | |
| 24 | Andrew Mullins | 1.089 | 1927 | |
| 25 | Mitch Osborne | 1.088 | 1925 | |
| 25 | Gustavo Ortega | 1.088 | 1941 | |
| 27 | Kanne Oostenbroek | 1.084 | 1916 | |
| 27 | Jim Crowe | 1.084 | 1924 | |
| 29 | Cliff Bailey | 1.083 | 1945 | |
| 30 | Cristián García | 1.082 | 1927 | |
| 30 | Rubén Vázquez | 1.082 | 1935 | |
| 32 | Jason McDonald | 1.081 | 1912 | |
| 32 | Dave Goodwin | 1.081 | 1964 | |
| 32 | Roberto Baudin | 1.081 | 1963 | |
| 32 | Cristián García | 1.081 | 1928 | |
| 36 | Cristián García | 1.080 | 1925 | |
| 37 | Ethan Opie | 1.079 | 1962 | |
| 38 | Greg Rodríguez | 1.077 | 1937 | |
| 38 | Tomás Romero | 1.077 | 1942 | |
| 38 | Zuo-qian Lee | 1.077 | 1934 | |
| 41 | Pancho García | 1.075 | 1954 | |
| 41 | José Medrano | 1.075 | 1952 | |
| 41 | Teruo Takata | 1.075 | 1950 | |
| 44 | Armando Alvarado | 1.074 | 1955 | |
| 44 | Greg Rodríguez | 1.074 | 1938 | |
| 44 | William Hoover | 1.074 | 1971 | |
| 47 | Sergio López | 1.073 | 1958 | |
| 48 | Keith Stuart | 1.072 | 1932 | |
| 49 | Lou Stephens | 1.071 | 1959 | |
| 49 | Todd Campbell | 1.071 | 1939 | |
| 49 | César Navarro | 1.071 | 1931 | |
| 52 | Tade Noussen | 1.070 | 1965 | |
| 52 | John Bird | 1.070 | 1959 | |
| 52 | José Medrano | 1.070 | 1951 | |
| 52 | Jeff Snyder | 1.070 | 1946 | |
| 52 | Rodrigo Lugo# | 1.070 | 1988 | |
| 57 | Kian Rosbotham# | 1.069 | 1981 | |
| 57 | Kazunori Matsumoto | 1.069 | 1917 | |
| 57 | Ed Reynolds | 1.069 | 1914 | |
| 60 | Micah Bolitho# | 1.067 | 1989 | |
| 60 | Ricardo Ferreira | 1.067 | 1943 | |
| 60 | Shane Tregoning | 1.067 | 1934 | |
| 63 | Gary Hubbard | 1.066 | 1957 | |
| 64 | Gary Hubbard | 1.065 | 1958 | |
| 65 | Andrew Mullins | 1.064 | 1929 | |
| 66 | Danny Warren | 1.063 | 1936 | |
| 67 | Darren Morgenstern# | 1.062 | 1983 | |
| 67 | Darren Morgenstern# | 1.062 | 1984 | |
| 69 | Francisco Romero# | 1.061 | 1986 | |
| 69 | Jorge Salazar | 1.061 | 1948 | |
| 71 | Francisco Romero# | 1.060 | 1988 | |
| 72 | Kojuro Oshima | 1.059 | 1932 | |
| 72 | Ronaldo Ibáñez# | 1.059 | 1982 | |
| 72 | Armando Alvarado | 1.059 | 1957 | |
| 75 | William Jowett | 1.058 | 1961 | |
| 75 | Gary Hubbard | 1.058 | 1959 | |
| 75 | Natsu Fujita | 1.058 | 1948 | |
| 78 | Rafael Ruíz | 1.057 | 1973 | |
| 78 | Robinson Gallegos# | 1.057 | 1987 | |
| 80 | Álvaro Ortíz | 1.056 | 1952 | |
| 80 | José Medina | 1.056 | 1955 | |
| 80 | Juan Gonzáles | 1.056 | 1927 | |
| 83 | Armando Díaz# | 1.055 | 1987 | |
| 83 | Francisco Alston# | 1.055 | 1984 | |
| 85 | Bartolo Rosas | 1.054 | 1962 | |
| 86 | Carlos Guthrie | 1.053 | 1913 | |
| 87 | Andrew Mullins | 1.052 | 1928 | |
| 87 | Katsunosuki Samurakami | 1.052 | 1936 | |
| 87 | Michael Hoffman | 1.052 | 1925 | |
| 90 | Lou Stephens | 1.050 | 1957 | |
| 91 | Kian Rosbotham# | 1.049 | 1980 | |
| 91 | Joe McGrath | 1.049 | 1947 | |
| 93 | Félix Torres# | 1.048 | 1989 | |
| 93 | Dale Kennedy | 1.048 | 1954 | |
| 95 | Kevin Johnston | 1.047 | 1922 | |
| 96 | Miguel Fernández# | 1.046 | 1990 | |
| 97 | Lou Stephens | 1.045 | 1958 | |
| 97 | Jeff Snyder | 1.045 | 1947 | |
| 97 | Pedro Martínez | 1.045 | 1943 | |
| 97 | Millard Arnold | 1.045 | 1981 |
