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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Roland Deschain# | 1.042 | 2026-2034 | |
| 2 | Andre Dixon | 1.041 | 2016-2019 | |
| 3 | Bernardo Herrera# | 1.036 | 2019-2034 | |
| 4 | Francisco González | 1.031 | 2013-2020 | |
| 5 | José Jarca# | 1.027 | 2029-2034 | |
| 6 | Tim Barnes | 1.022 | 2017-2027 | |
| 7 | Eiji Suzuki | 1.020 | 2016-2024 | |
| 8 | Bob Heller | 1.016 | 2015-2026 | |
| 9 | Thom Wilcox* | 1.010 | 2013-2028 | |
| 10 | Ki-tak Im# | 1.008 | 2024-2034 | |
| 10 | Melito Báez# | 1.008 | 2028-2034 | |
| 12 | Tony Romero# | 1.007 | 2023-2034 | |
| 12 | Munemori Ohara | 1.007 | 2021-2031 | |
| 14 | Jorge Trevino | 1.006 | 2019-2026 | |
| 15 | Nelson Jaramillo# | 1.002 | 2029-2034 | |
| 15 | Juan Cabrera# | 1.002 | 2015-2034 | |
| 17 | Robby Day | .999 | 2022-2034 | |
| 18 | Tamasaburo Kato# | .997 | 2021-2034 | |
| 18 | Brent Gaines | .997 | 2013-2018 | |
| 20 | Raúl Ortíz# | .994 | 2025-2032 | |
| 21 | Bob Campbell | .993 | 2014-2025 | |
| 22 | Noel Ballard# | .992 | 2017-2034 | |
| 23 | Micah Coffey# | .989 | 2025-2034 | |
| 24 | Nathan Horton | .987 | 2017-2026 | |
| 25 | Colt Cabana# | .985 | 2029-2034 | |
| 26 | Jorge Alejándrez# | .976 | 2027-2034 | |
| 27 | Travis Newsome | .973 | 2020-2032 | |
| 28 | Gerald Shaw | .958 | 2013-2016 | |
| 29 | Andrés Rodríguez# | .924 | 2020-2033 | |
| 29 | Yoshio Matsuo | .924 | 2015-2025 |
