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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Octavio Cabrales | 1.085 | 2011-2025 | |
| 2 | Martin Cox# | 1.076 | 2024-2035 | |
| 3 | Ben Turner# | 1.075 | 2028-2035 | |
| 4 | Bernardo Álvarez# | 1.066 | 2029-2035 | |
| 5 | Manuel Hidalgo# | 1.047 | 2027-2035 | |
| 5 | Luis Rosales# | 1.047 | 2030-2035 | |
| 7 | Masahide Ueda | 1.037 | 2019-2029 | |
| 8 | Juan Gómez | 1.034 | 2019-2028 | |
| 9 | Héctor Valera# | 1.019 | 2028-2035 | |
| 10 | Jesús Flores | 1.006 | 2018-2030 | |
| 11 | Eobanus Schnabel | 1.005 | 2026-2033 | |
| 12 | José González# | 1.002 | 2025-2035 | |
| 12 | Marcos Alcazar | 1.002 | 2013-2023 | |
| 14 | Lindsay Walker | 1.000 | 2016-2026 | |
| 15 | David Seibel | .989 | 2017-2032 | |
| 15 | Travis Sparrow | .989 | 2015-2026 | |
| 17 | Carlos Ortega | .988 | 2025-2033 | |
| 18 | Howard Rogers | .985 | 2023-2033 | |
| 19 | Luis Rodríguez | .984 | 2023-2030 | |
| 20 | Jeff Corson# | .973 | 2024-2035 | |
| 21 | Luis Jeon* | .972 | 2005-2024 | |
| 21 | Nigel Bryant | .972 | 2019-2033 | |
| 23 | Carl Watson | .968 | 2020-2026 | |
| 24 | Andy Robertson | .967 | 2018-2028 | |
| 25 | Jaime Álvarez | .964 | 2025-2032 | |
| 26 | James Dodd | .963 | 2017-2025 | |
| 26 | Dong Lutz* | .963 | 2006-2022 | |
| 28 | Arturo Sánchez | .959 | 2026-2033 | |
| 29 | Gregorio Marzano | .956 | 2011-2025 | |
| 30 | Roy Hebert# | .918 | 2029-2035 | |
| 31 | Ronald Aikin | .000 | 2007-2017 | |
| 31 | Jose Guzman | .000 | 2011-2018 | |
| 31 | Gregory Mudge* | .000 | 2004-2019 | |
| 31 | Michael Slye | .000 | 2011-2020 | |
| 31 | Federico Soriano | .000 | 2013-2020 |
