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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 | Wu-shun Chu# | 1.049 | 2032-2040 | |
| 3 | David Henderson | 1.039 | 2016-2025 | |
| 4 | Edgar Balerio | 1.038 | 2031-2037 | |
| 4 | Jon Osterman# | 1.038 | 2028-2038 | |
| 6 | Jack MacAsgill | 1.031 | 2023-2029 | |
| 7 | Juan Caro# | 1.025 | 2029-2041 | |
| 8 | Cale Sutton | 1.014 | 2015-2031 | |
| 8 | Manoo Satyavrat# | 1.014 | 2029-2041 | |
| 10 | Ramiro Salazar | 1.009 | 2016-2027 | |
| 11 | Gregg Wagner | 1.005 | 2019-2028 | |
| 11 | Nobuo Yamashita | 1.005 | 2025-2034 | |
| 13 | Juan Macíel# | 1.000 | 2031-2040 | |
| 14 | Tommy Jones* | .994 | 2015-2035 | |
| 15 | Paul Tate# | .993 | 2037-2041 | |
| 16 | Barry Flauker# | .973 | 2036-2041 | |
| 17 | Luis Ríos | .971 | 2027-2035 |
