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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Newt Allen | 1.035 | 1923-1940 | |
| 2 | Bingo DeMoss | 1.031 | 1921-1928 | |
| 3 | Martín Dihigo# | 1.026 | 1924-1941 | |
| 3 | Bobby Doerr# | 1.026 | 1934-1941 | |
| 5 | Jimmie Reese | 1.025 | 1924-1940 | |
| 6 | Bud Connolly | 1.021 | 1922-1928 | |
| 7 | Frank Warfield | 1.019 | 1921-1934 | |
| 8 | Chick Ellsworth | 1.015 | 1926-1937 | |
| 9 | Lonny Backer | 1.014 | 1925-1937 | |
| 10 | George Scales# | 1.013 | 1922-1941 | |
| 11 | Joe Gordon# | 1.007 | 1936-1941 | |
| 12 | Alex Kampouris# | 1.002 | 1932-1934 | |
| 13 | Tony Lazzeri# | 0.998 | 1922-1941 | |
| 14 | Art Garibaldi# | 0.996 | 1931-1941 | |
| 15 | Freddie Muller# | 0.991 | 1928-1941 | |
| 15 | Frank Sigafoos | 0.991 | 1927-1935 | |
| 17 | Ted Jennings# | 0.982 | 1936-1941 | |
| 18 | Les Sheehan | 0.977 | 1921-1928 | |
| 19 | John Monroe | 0.972 | 1925-1934 | |
| 20 | Walter Cannady# | 0.967 | 1923-1927 | |
| 21 | Wes Griffin | 0.957 | 1924-1934 |
