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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ron Martin | 1.115 | 2015-2019 | |
| 2 | José Icaza | 1.105 | 2013-2018 | |
| 2 | David Townsend | 1.105 | 2014-2018 | |
| 4 | John Ortíz | 1.098 | 2016-2020 | |
| 5 | Jimmy Hooker | 1.084 | 2016-2020 | |
| 6 | Preston Parkinson | 1.077 | 2016-2020 | |
| 7 | Baden Jeffes# | 1.068 | 2026-2029 | |
| 8 | Lopes Caroo# | 1.061 | 2025-2028 | |
| 9 | Nobuatsu Ota# | 1.057 | 2025-2028 | |
| 10 | Ricardo Morán# | 1.049 | 2027-2030 | |
| 11 | Todd Warren | 1.048 | 2015-2019 | |
| 11 | In-gu Kang# | 1.048 | 2026-2028 | |
| 13 | Chris Nicholls# | 1.047 | 2028-2030 | |
| 14 | Mike Cantrell | 1.046 | 2014-2016 | |
| 14 | Félix Molina# | 1.046 | 2028-2030 | |
| 16 | Li-ben Zhu# | 1.045 | 2025-2028 | |
| 16 | Dave King | 1.045 | 2016-2019 | |
| 18 | Dave Rogers | 1.042 | 2016-2021 | |
| 19 | Henning Luyks# | 1.039 | 2025-2028 | |
| 20 | Jorge Ángel# | 1.038 | 2028-2030 | |
| 21 | Joey Schneider | 1.037 | 2022-2024 | |
| 22 | Seung-cheol Park# | 1.036 | 2025-2028 | |
| 22 | Henry González | 1.036 | 2018-2022 | |
| 24 | António Castillo# | 1.034 | 2025-2028 | |
| 25 | Kunihiko Nakano# | 1.026 | 2022-2024 | |
| 26 | Toyotomi Nakamura# | 1.022 | 2027-2029 | |
| 27 | Christiaan Ottens# | 1.021 | 2026-2028 | |
| 28 | Ramón Cantú# | 1.019 | 2025-2028 | |
| 29 | Chris Danton# | 1.017 | 2025-2028 | |
| 29 | Naoaki Kurota# | 1.017 | 2025-2028 | |
| 29 | Gilberto Madrid# | 1.017 | 2027-2029 | |
| 32 | Jeffrey Starkie | 1.013 | 2018-2022 | |
| 33 | Ramón Díaz# | 1.011 | 2026-2029 | |
| 34 | Mike Foley# | 1.010 | 2024-2026 | |
| 34 | Juan Franco# | 1.010 | 2029-2031 | |
| 36 | Bill Gilmore | 1.007 | 2014-2018 | |
| 37 | Kenzaburo Suitani# | 0.997 | 2025-2028 | |
| 38 | Roberto Ortíz# | 0.993 | 2026-2028 | |
| 39 | Pat Jackson | 0.972 | 2018-2021 | |
| 40 | James Carson# | 0.968 | 2024-2026 | |
| 41 | Scott Hardwick# | 0.965 | 2025-2028 | |
| 42 | Marcus Rowe# | 0.942 | 2026-2029 | |
| 43 | Ite Collin# | 0.940 | 2025-2027 | |
| 44 | Carlos Gómez# | 0.936 | 2024-2026 |
