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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Armando Acosta | 1.141 | 1952 | |
| 2 | Niko Obradovic# | 1.106 | 1957 | |
| 2 | Dan Sloan | 1.106 | 1957 | |
| 4 | Jin-hwan Jung# | 1.103 | 1956 | |
| 5 | Dan Sloan | 1.095 | 1958 | |
| 6 | Willie Alquicira# | 1.092 | 1956 | |
| 7 | Armando Acosta | 1.090 | 1954 | |
| 8 | Willie Alquicira# | 1.080 | 1955 | |
| 9 | Ted Donato | 1.077 | 1954 | |
| 10 | Armando Acosta | 1.069 | 1953 | |
| 10 | Ted Donato | 1.069 | 1953 | |
| 12 | Gunder Mandelbrot | 1.042 | 1954 | |
| 13 | Dan Radebaugh# | 1.038 | 1956 | |
| 14 | Ross Smith# | 1.027 | 1958 | |
| 15 | David Berger# | 1.020 | 1957 | |
| 16 | Dan Radebaugh# | 1.017 | 1955 | |
| 17 | Gavrilo Adzovic# | 1.013 | 1952 | |
| 18 | Zeljko Prpos | 1.001 | 1953 | |
| 19 | Dan Stawinski | 0.999 | 1956 | |
| 20 | Jim Dooling# | 0.998 | 1955 | |
| 21 | Nathan Warwick# | 0.997 | 1952 | |
| 22 | Jose Rosas# | 0.993 | 1955 | |
| 23 | Kai Virl | 0.986 | 1952 | |
| 23 | Ross Smith# | 0.986 | 1957 | |
| 25 | Matèa Thika | 0.985 | 1958 | |
| 26 | Jose Rosas# | 0.982 | 1956 | |
| 26 | Josh Wright# | 0.982 | 1958 | |
| 28 | Timo Woile | 0.981 | 1952 | |
| 29 | Jim Dooling# | 0.979 | 1956 | |
| 30 | Dave Wolford# | 0.960 | 1957 | |
| 31 | Asim Zoric | 0.952 | 1957 | |
| 32 | Jim Dooling# | 0.948 | 1952 | |
| 33 | Jose Pena# | 0.920 | 1955 | |
| 34 | Francisco Guerrero | 0.913 | 1954 | |
| 35 | Steve Olsen | 0.899 | 1954 |
