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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Manny Machado# | 1.048 | 2016-2025 | |
| 2 | Nolan Arenado# | 1.042 | 2015-2025 | |
| 3 | Grant Bodison# | 1.039 | 2020-2025 | |
| 4 | Anthony Rendon# | 1.026 | 2015-2025 | |
| 4 | Josh Donaldson | 1.026 | 2015-2018 | |
| 4 | Jarid Joseph# | 1.026 | 2018-2025 | |
| 7 | Drew Mendoza# | 1.025 | 2020-2025 | |
| 8 | Kyle Seager | 1.021 | 2015-2024 | |
| 9 | Kaleb Cowart# | 1.019 | 2016-2025 | |
| 9 | Kris Bryant# | 1.019 | 2015-2025 | |
| 11 | Trey Cabbage# | 1.018 | 2022-2025 | |
| 12 | Xander Bogaerts# | 1.013 | 2015-2025 | |
| 12 | Evan Longoria | 1.013 | 2015-2025 | |
| 14 | Maikel Franco# | 1.011 | 2015-2025 | |
| 15 | Jake Lamb | 1.009 | 2016-2023 | |
| 15 | Joey Gallo# | 1.009 | 2017-2024 | |
| 17 | Travis Blankenhorn# | 1.007 | 2020-2025 | |
| 18 | Yulieski Gourriel | 1.006 | 2015-2020 | |
| 19 | Ryan McMahon# | 1.002 | 2018-2025 | |
| 20 | Jeimer Candelario# | .994 | 2018-2024 | |
| 21 | Greg Deichmann# | .992 | 2020-2025 | |
| 22 | Yoan Moncada# | .991 | 2016-2025 | |
| 23 | Nick Castellanos | .986 | 2015-2018 | |
| 24 | Miguel Sano# | .982 | 2015-2025 | |
| 25 | David Wright | .972 | 2015-2020 | |
| 25 | Rosell Herrera# | .972 | 2017-2025 | |
| 27 | Pablo Sandoval | .968 | 2016-2020 | |
| 28 | Miguel Andujar# | .961 | 2018-2025 | |
| 29 | Lourdes Gourriel Jr.# | .955 | 2023-2025 | |
| 30 | Scooter Gennett | .951 | 2015-2022 | |
| 31 | Rafael Devers# | .948 | 2020-2025 | |
| 32 | Lonnie Chisenhall | .933 | 2015-2020 |
