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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Stephen Alemais | 1.129 | 2022 | |
| 2 | Marcelo Mayer# | 1.124 | 2025 | |
| 3 | Deven Marrero | 1.117 | 2020 | |
| 4 | Adeiny Hechavarria | 1.109 | 2021 | |
| 5 | Malquin Canelo | 1.106 | 2021 | |
| 6 | Francisco Lindor# | 1.104 | 2014 | |
| 7 | Malquin Canelo | 1.099 | 2020 | |
| 8 | Malquin Canelo | 1.095 | 2022 | |
| 9 | Sergio Alcantara# | 1.091 | 2024 | |
| 10 | J.P. Crawford# | 1.090 | 2019 | |
| 10 | Sergio Alcantara# | 1.090 | 2025 | |
| 12 | Hak Ju Lee | 1.089 | 2013 | |
| 13 | Nicky Lopez# | 1.087 | 2023 | |
| 14 | Dixon Machado# | 1.078 | 2022 | |
| 15 | Sergio Alcantara# | 1.074 | 2022 | |
| 16 | Luis Sardinas | 1.070 | 2017 | |
| 17 | Richard Urena# | 1.068 | 2024 | |
| 18 | Stephen Alemais | 1.063 | 2019 | |
| 19 | Matt Duffy# | 1.060 | 2018 | |
| 19 | Carson Williams# | 1.060 | 2025 | |
| 19 | Hak Ju Lee | 1.060 | 2016 | |
| 22 | Sean Jamieson | 1.058 | 2016 | |
| 23 | Gleyber Torres# | 1.051 | 2018 | |
| 24 | J.P. Crawford# | 1.050 | 2016 | |
| 25 | Xander Bogaerts# | 1.049 | 2014 | |
| 25 | Jorge Mateo# | 1.049 | 2018 | |
| 27 | Reynaldo Navarro | 1.047 | 2015 | |
| 28 | Ryan Kreidler# | 1.046 | 2023 | |
| 29 | Charlie Culberson | 1.044 | 2018 | |
| 29 | Manny Machado# | 1.044 | 2013 | |
| 31 | Elly De La Cruz# | 1.043 | 2024 | |
| 31 | Wilfredo Tovar | 1.043 | 2014 | |
| 31 | Jake Hager# | 1.043 | 2019 | |
| 31 | Richard Urena# | 1.043 | 2022 | |
| 31 | Dansby Swanson# | 1.043 | 2017 | |
| 36 | Ehire Adrianza | 1.042 | 2015 | |
| 37 | Andres Blanco | 1.039 | 2013 | |
| 37 | Wilfredo Tovar | 1.039 | 2016 | |
| 37 | Wilfredo Tovar | 1.039 | 2015 | |
| 40 | Ryan Kreidler# | 1.036 | 2025 | |
| 40 | J.P. Crawford# | 1.036 | 2017 | |
| 42 | Peter Mooney | 1.035 | 2020 | |
| 42 | Connor Kaiser# | 1.035 | 2023 | |
| 44 | Deven Marrero | 1.034 | 2017 | |
| 44 | Sergio Alcantara# | 1.034 | 2023 | |
| 44 | Zach Vincej | 1.034 | 2020 | |
| 47 | Zach Vincej | 1.033 | 2021 | |
| 47 | Peter Mooney | 1.033 | 2021 | |
| 49 | Zach Vincej | 1.032 | 2018 | |
| 50 | Adeiny Hechavarria | 1.030 | 2020 | |
| 50 | Ehire Adrianza | 1.030 | 2017 | |
| 50 | Matt Reynolds | 1.030 | 2016 | |
| 53 | Dixon Machado# | 1.029 | 2020 | |
| 54 | Yadiel Rivera | 1.028 | 2016 | |
| 55 | Jorge Polanco# | 1.027 | 2015 | |
| 56 | Deven Marrero | 1.025 | 2016 | |
| 57 | Connor Heady | 1.023 | 2021 | |
| 58 | Amed Rosario# | 1.022 | 2017 | |
| 58 | Xander Bogaerts# | 1.022 | 2015 | |
| 60 | Marwin Gonzalez | 1.021 | 2014 | |
| 61 | Addison Barger# | 1.020 | 2023 | |
| 61 | Kristopher Negron | 1.020 | 2014 | |
| 61 | Peter Mooney | 1.020 | 2019 | |
| 64 | Andrew Romine | 1.019 | 2018 | |
| 65 | Nicky Lopez# | 1.017 | 2018 | |
| 66 | Blake Trahan | 1.016 | 2020 | |
| 67 | Jason Martinson | 1.014 | 2016 | |
| 68 | Gavin Cecchini | 1.013 | 2019 | |
| 69 | Tim Beckham | 1.012 | 2017 | |
| 69 | Chris Taylor# | 1.012 | 2013 | |
| 71 | Freddy Zamora# | 1.011 | 2023 | |
| 72 | Luis Sardinas | 1.009 | 2020 | |
| 73 | Shane Opitz | 1.007 | 2016 | |
| 73 | Eric Stamets | 1.007 | 2017 | |
| 73 | Chase D'Arnaud | 1.007 | 2014 | |
| 73 | Trea Turner# | 1.007 | 2016 | |
| 73 | Kelby Tomlinson | 1.007 | 2021 | |
| 73 | Nick Loftin# | 1.007 | 2025 | |
| 79 | Jason Martinson | 1.006 | 2015 | |
| 80 | Ricardo Andujar | 1.005 | 2020 | |
| 80 | Tyler Pastornicky | 1.005 | 2013 | |
| 82 | Willy Adames# | 1.003 | 2019 | |
| 83 | Michael Davis | 1.002 | 2020 | |
| 84 | Kelby Tomlinson | 1.001 | 2019 | |
| 85 | Tyler Greene | 0.999 | 2015 | |
| 85 | Ivan Johnson# | 0.999 | 2025 | |
| 87 | Nick Sogard# | 0.998 | 2023 | |
| 87 | Kelby Tomlinson | 0.998 | 2020 | |
| 89 | Jorge Polanco# | 0.993 | 2016 | |
| 90 | Chase D'Arnaud | 0.990 | 2015 | |
| 91 | Nick Loftin# | 0.989 | 2023 | |
| 92 | Aledmys Diaz | 0.988 | 2014 | |
| 93 | Brock Holt | 0.987 | 2013 | |
| 94 | Jordy Mercer | 0.985 | 2020 | |
| 94 | Daniel Muno | 0.985 | 2013 | |
| 96 | Josh Morgan | 0.984 | 2018 | |
| 96 | Tyler Wade# | 0.984 | 2022 | |
| 96 | C.J. Hinojosa# | 0.984 | 2019 | |
| 99 | Chad Pinder | 0.982 | 2017 | |
| 99 | Colson Montgomery# | 0.982 | 2025 |
