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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Arnold Crane# | 1.049 | 2055-2058 | |
| 2 | Jesús Méndez | 1.030 | 2038-2041 | |
| 3 | Carlos Sánchez | 1.027 | 2018-2022 | |
| 4 | Yun-qi Chien | 0.989 | 2028-2031 | |
| 5 | Luis Ávila | 0.983 | 2042-2047 | |
| 6 | Steve Weber | 0.980 | 2029-2032 | |
| 7 | Stephen McManus | 0.978 | 2026-2034 |
