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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Pat Larrison | 1.126 | 2011-2020 | |
| 2 | Javy Moreno | 1.109 | 2002-2011 | |
| 3 | Geoff Mumme | 1.084 | 1998-2016 | |
| 4 | James Reed | 1.080 | 2043-2046 | |
| 5 | J.R. Djojohadiksumo | 1.076 | 2035-2038 | |
| 6 | Frederic Mavromihali | 1.073 | 2041-2044 | |
| 7 | Leo Angeles | 1.053 | 2002-2012 | |
| 8 | River Shiffman | 1.051 | 2011-2023 | |
| 9 | Oscar Garcia | 1.048 | 1998-2015 | |
| 10 | Ricky Rivera | 1.043 | 2004-2018 | |
| 11 | Romone Caballero | 0.957 | 2036-2039 | |
| 12 | Colt Heston# | 0.893 | 2054-2060 |
