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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Jose Devers# | 1.159 | 2025 | |
| 2 | Taylor Walls# | 1.101 | 2021 | |
| 3 | Jack Lopez# | 1.091 | 2020 | |
| 4 | Shane Opitz | 1.086 | 2019 | |
| 5 | Nolan Fontana | 1.085 | 2015 | |
| 6 | Nelson Molina | 1.080 | 2023 | |
| 7 | Nicholas Shaw | 1.077 | 2014 | |
| 8 | Luke Williams# | 1.062 | 2023 | |
| 9 | Nicholas Shaw | 1.057 | 2013 | |
| 10 | Nolan Fontana | 1.056 | 2014 | |
| 11 | Darren Seferina | 1.048 | 2021 | |
| 12 | Anthony Prato# | 1.032 | 2023 | |
| 13 | Brooks Lee# | 1.030 | 2024 | |
| 14 | Jose Rivera | 1.029 | 2016 | |
| 15 | Riley Unroe# | 1.028 | 2019 | |
| 16 | Russell Wilson | 1.022 | 2016 | |
| 16 | Andy Ibanez# | 1.022 | 2021 | |
| 18 | Jackson Holliday# | 1.019 | 2024 | |
| 18 | Juan M. Perez | 1.019 | 2016 | |
| 20 | Derrik Gibson | 1.018 | 2017 | |
| 20 | Jackson Merrill# | 1.018 | 2024 | |
| 20 | Eliezer Alvarez | 1.018 | 2016 | |
| 23 | Nolan Fontana | 1.017 | 2013 | |
| 24 | Jeremiah Jackson# | 1.016 | 2022 | |
| 25 | Ke'byran Hayes# | 1.012 | 2021 | |
| 25 | Luis Rengifo# | 1.012 | 2021 | |
| 27 | Avery Romero | 1.011 | 2017 | |
| 27 | Kyren Paris# | 1.011 | 2023 | |
| 29 | Kevin Kramer | 1.008 | 2018 | |
| 30 | Erick Mejia | 1.005 | 2022 | |
| 30 | Jahmai Jones# | 1.005 | 2021 | |
| 32 | Felix Valerio# | 1.003 | 2024 | |
| 32 | Ramon Torres | 1.003 | 2020 | |
| 34 | John La Prise | 1.000 | 2018 | |
| 35 | Ramon Torres | 0.999 | 2019 | |
| 36 | Rob Refsnyder# | 0.998 | 2018 | |
| 37 | Ronny Rodriguez | 0.995 | 2016 | |
| 38 | Joe Panik | 0.991 | 2014 | |
| 39 | Wendell Rijo# | 0.990 | 2017 | |
| 40 | Ryan Schimpf | 0.985 | 2014 | |
| 41 | Shane Matheny# | 0.978 | 2025 | |
| 42 | Tommy Troy# | 0.974 | 2025 | |
| 43 | Nick Yorke# | 0.973 | 2025 | |
| 44 | Ramon Urias# | 0.972 | 2020 | |
| 45 | Casey Turgeon | 0.969 | 2019 | |
| 46 | Tyler Freeman# | 0.968 | 2020 | |
| 47 | Austin Slater# | 0.967 | 2017 | |
| 48 | James Triantos# | 0.956 | 2025 | |
| 49 | Jose Fermin# | 0.951 | 2023 | |
| 50 | Kody Clemens# | 0.949 | 2020 | |
| 51 | Hogan Windish# | 0.948 | 2024 | |
| 52 | Vince Belnome | 0.943 | 2016 | |
| 53 | Michael Busch# | 0.907 | 2021 | |
| 54 | Andy Perez# | 0.000 | 2023 |
