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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Alvin Sherman | 1.098 | 2019-2023 | |
| 2 | Armando Burgos# | 1.061 | 2027-2035 | |
| 3 | José Gonzáles# | 1.055 | 2027-2035 | |
| 4 | Lúcio Muñíz | 1.050 | 2021-2033 | |
| 5 | Ernesto Salcido# | 1.048 | 2026-2035 | |
| 6 | Tomás Fernández# | 1.047 | 2030-2035 | |
| 7 | William Gilmore# | 1.034 | 2029-2035 | |
| 8 | George Hendricks# | 1.033 | 2026-2035 | |
| 9 | Kyung-hwan Pak | 1.029 | 2019-2026 | |
| 10 | Mike Roberts | 1.027 | 2026-2031 | |
| 11 | Jaime Vásquez | 1.025 | 2020-2030 | |
| 12 | Armando Cedeno | 1.021 | 2009-2023 | |
| 13 | Pedro Muñóz# | 1.013 | 2027-2035 | |
| 14 | Ray McJannett# | 1.007 | 2021-2035 | |
| 15 | Máximo Rodríguez | .991 | 2018-2026 | |
| 16 | Hidekazu Iwasaki | .990 | 2019-2026 | |
| 17 | John Willis# | .989 | 2028-2035 | |
| 18 | Juan Arroyo# | .986 | 2024-2035 | |
| 19 | John Hunter# | .968 | 2030-2035 | |
| 20 | Alfonso Fernandez | .966 | 2012-2022 | |
| 21 | Luis Santiago# | .965 | 2023-2035 | |
| 22 | Jonathan Anderson | .956 | 2019-2033 | |
| 23 | Sherman Evanoff | .953 | 2014-2029 | |
| 24 | Salvador Velásquez# | .948 | 2022-2035 | |
| 25 | Rufus Murry* | .903 | 2012-2026 | |
| 26 | Kevin Rubio | .890 | 2010-2021 | |
| 27 | Robert Estill | .832 | 2013-2022 | |
| 28 | Brian Frison* | .822 | 2006-2024 | |
| 29 | Christopher Moss* | .791 | 2006-2021 | |
| 30 | Tyler Thomas | .494 | 2007-2021 | |
| 31 | Miguel Cuesta | .000 | 2006-2020 | |
| 31 | Abe Shively | .000 | 2011-2019 |
