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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Danny Warren | 1.123 | 2050-2054 | |
| 2 | Rupert Bethune | 1.048 | 2043-2051 | |
| 3 | Zed Umlaut | 1.031 | 2045-2057 | |
| 4 | Cheong-hun Kang | 1.023 | 2035-2042 | |
| 5 | Ron Johnson | 1.020 | 2048-2058 | |
| 6 | Tomás Costello | 1.015 | 2033-2038 | |
| 7 | Roberto Soto | 1.013 | 2026-2038 | |
| 8 | Jim Kelley | 1.003 | 2048-2054 | |
| 9 | Yosai Hayagawa# | 0.996 | 2055-2061 | |
| 10 | Jon Erickson | 0.993 | 2020-2028 | |
| 10 | Mariano Cabral | 0.993 | 2052-2059 | |
| 12 | Charles Cummings | 0.962 | 2048-2056 |
