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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gabriel Pérez | 1.078 | 2023-2034 | |
| 2 | David Henderson | 1.039 | 2016-2025 | |
| 3 | Edgar Balerio | 1.038 | 2031-2037 | |
| 3 | Jon Osterman | 1.038 | 2028-2042 | |
| 5 | Wu-shun Chu | 1.037 | 2032-2042 | |
| 6 | Jack MacAsgill | 1.031 | 2023-2029 | |
| 7 | Juan Caro | 1.025 | 2029-2041 | |
| 7 | Amor Campos# | 1.025 | 2041-2045 | |
| 9 | Cale Sutton | 1.014 | 2015-2031 | |
| 9 | Manoo Satyavrat | 1.014 | 2029-2041 | |
| 11 | Ramiro Salazar | 1.009 | 2016-2027 | |
| 12 | Silvio Capitanio# | 1.006 | 2040-2045 | |
| 13 | Gregg Wagner | 1.005 | 2019-2028 | |
| 13 | Nobuo Yamashita | 1.005 | 2025-2034 | |
| 15 | Juan Macíel | 1.000 | 2031-2040 | |
| 16 | Tommy Jones* | 0.994 | 2015-2035 | |
| 17 | Paul Tate | 0.991 | 2037-2043 | |
| 18 | Kolby Hay# | 0.979 | 2039-2044 | |
| 19 | Luis Ríos | 0.971 | 2027-2035 | |
| 20 | Barry Flauker | 0.953 | 2036-2042 |
