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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Rabbit Martinez# | 1.111 | 1936-1941 | |
| 2 | Willie Wells# | 1.052 | 1925-1941 | |
| 3 | Eddie Joost# | 1.044 | 1933-1938 | |
| 4 | Gordon Slade | 1.028 | 1923-1938 | |
| 5 | Dick Bartell# | 1.017 | 1930-1938 | |
| 5 | Jake Stephens | 1.017 | 1922-1935 | |
| 7 | Dobie Moore | 1.015 | 1921-1927 | |
| 7 | Ray French | 1.015 | 1921-1931 | |
| 9 | Dick Lundy | 1.012 | 1921-1933 | |
| 10 | Lyn Lary# | 0.998 | 1925-1937 | |
| 11 | Chester Williams# | 0.997 | 1934-1941 | |
| 11 | Carl Dittmar | 0.997 | 1927-1940 | |
| 13 | Orville Riggins | 0.992 | 1921-1929 | |
| 13 | Joe Cronin# | 0.992 | 1926-1941 | |
| 15 | Pelayo Chacon | 0.986 | 1921-1929 | |
| 16 | Frankie Crosetti# | 0.983 | 1928-1934 | |
| 16 | Dud Lee | 0.983 | 1922-1933 | |
| 18 | Arky Vaughan# | 0.967 | 1932-1941 |
