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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Cole Tucker# | 1.087 | 2022-2025 | |
| 2 | Ian Happ# | 1.082 | 2022-2025 | |
| 3 | Miguel Sano# | 1.077 | 2015-2025 | |
| 4 | Ryan Zimmerman | 1.071 | 2015-2016 | |
| 5 | Brandon Belt | 1.066 | 2015-2022 | |
| 5 | Rafael Devers# | 1.066 | 2020-2025 | |
| 7 | Juan Rodríguez# | 1.060 | 2020-2025 | |
| 8 | Anthony Rizzo# | 1.057 | 2015-2025 | |
| 9 | Tae-geun Park# | 1.056 | 2023-2025 | |
| 9 | Jorge Devia# | 1.056 | 2022-2025 | |
| 11 | Maikel Franco# | 1.040 | 2015-2025 | |
| 12 | Greg Deichmann# | 1.038 | 2020-2025 | |
| 12 | Casey Gillaspie# | 1.038 | 2018-2024 | |
| 14 | Lou Gehrig# | 1.034 | 2020-2025 | |
| 15 | Paul Goldschmidt | 1.032 | 2015-2022 | |
| 16 | Garin Cecchini | 1.030 | 2015-2019 | |
| 17 | Hank Greenberg# | 1.022 | 1930-2023 | |
| 18 | Matt Olson# | 1.021 | 2018-2025 | |
| 19 | Bobby Melley# | 1.020 | 2021-2025 | |
| 20 | Ji-man Choi# | 1.017 | 2018-2025 | |
| 21 | Ike Davis | 1.016 | 2015-2021 | |
| 22 | Eric Hosmer | 1.014 | 2015-2020 | |
| 23 | Kyle Schwarber# | 1.013 | 2015-2025 | |
| 24 | Justin Bellinger# | 1.011 | 2021-2025 | |
| 24 | Adrian Gonzalez | 1.011 | 2015-2017 | |
| 26 | Brett Lawrie | 1.009 | 2015-2018 | |
| 27 | Carlos Santana | 1.007 | 2015-2022 | |
| 28 | Miguel Cabrera | 1.005 | 2015-2020 | |
| 29 | Joe Mauer | 1.001 | 2015-2020 | |
| 30 | A.J. Reed | .988 | 2018-2024 | |
| 31 | Felix Munoz# | .981 | 2017-2025 | |
| 32 | Pablo Sandoval | .977 | 2016-2020 | |
| 33 | Freddie Freeman# | .946 | 2015-2025 | |
| 34 | Jose Abreu | .935 | 2015-2022 | |
| 35 | C.J. Cron# | .927 | 2015-2025 | |
| 36 | Greg Bird# | .898 | 2017-2025 | |
| 37 | Jose Osuna# | .887 | 2017-2025 |
