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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Manoell Cowan# | 1.112 | 1976-1987 | |
| 2 | Tom Sharpe | 1.082 | 1939-1943 | |
| 3 | Jesús Pińeiro | 1.057 | 1927-1930 | |
| 3 | Mandel Friedensburg | 1.057 | 1926-1929 | |
| 5 | Corey Boon | 1.052 | 1917-1920 | |
| 6 | Dwayne Harold | 1.050 | 1955-1960 | |
| 7 | Gautam Savarna | 1.044 | 1977-1980 | |
| 8 | Tommi Seppänen# | 1.034 | 1979-1985 | |
| 9 | Creedon Gavan | 1.033 | 1935-1937 | |
| 10 | Dan Lummis | 1.014 | 1912-1917 | |
| 11 | Carlton Ringer | 1.005 | 1920-1923 | |
| 12 | Júlio Fernández# | 0.985 | 1977-1990 | |
| 13 | Freek van Hal | 0.962 | 1956-1961 | |
| 14 | Arvid Zachrisson | 0.934 | 1928-1932 | |
| 15 | Vic Palk# | 0.932 | 1978-1989 | |
| 16 | Norm Garner | 0.928 | 1977-1984 |
