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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Gerald Bradford | 1.115 | 2014-2021 | |
| 2 | Myung-joo Ku | 1.092 | 2026-2027 | |
| 3 | José Aguilar# | 1.067 | 2030-2032 | |
| 4 | Dave O'Callaghan | 1.057 | 2017-2022 | |
| 5 | Ray Larson | 1.051 | 2020-2027 | |
| 6 | Steve Silver | 1.044 | 2027-2029 | |
| 7 | Alden Wood | 1.042 | 2016-2022 | |
| 7 | Tom Wyatt | 1.042 | 2016-2022 | |
| 9 | Mark Acres# | 1.038 | 2027-2032 | |
| 10 | Brant Lee | 1.036 | 2012-2020 | |
| 11 | Kuldip Panyala# | 1.033 | 2022-2029 | |
| 12 | Jen-djieh Chen# | 1.032 | 2021-2024 | |
| 13 | Bahuhiranya Sulagna | 1.021 | 2021-2029 | |
| 14 | Bill Wimbush | 1.015 | 2020-2026 | |
| 15 | José Souza | 1.005 | 2020-2022 | |
| 16 | Joe Finley | .999 | 2020-2023 | |
| 17 | Yasar Yildiz | .990 | 2024-2027 | |
| 18 | Kunio Suto# | .988 | 2026-2029 | |
| 19 | Eric Humphrey# | .973 | 2021-2030 | |
| 19 | Pat Pittman# | .973 | 2019-2022 | |
| 21 | Mao-you Wang# | .966 | 2024-2027 | |
| 22 | Cory Rice | .965 | 2017-2021 | |
| 23 | Muralidaran Purujit | .949 | 2021-2025 | |
| 24 | Masujiro Hayagawa# | .937 | 2025-2028 | |
| 25 | Chandler Eckard# | .928 | 2024-2029 | |
| 25 | Charlie Hide# | .928 | 2027-2029 | |
| 27 | Carlos López | .921 | 2025-2028 | |
| 28 | Tim Wells | .916 | 2018-2025 |
