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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Roberto Cantú | 1.178 | 2020-2022 | |
| 2 | Melvin Dugan | 1.145 | 2018-2020 | |
| 3 | Motoki Kanno | 1.131 | 2017-2021 | |
| 4 | Nobuhito Kouno | 1.103 | 2028-2030 | |
| 5 | Daniel Hockley# | 1.094 | 2029-2033 | |
| 6 | Yoshiaga Oshima | 1.057 | 2024-2027 | |
| 7 | Karl Fernandes# | 1.054 | 2025-2027 | |
| 8 | Irving Steele# | 1.053 | 2021-2024 | |
| 9 | José González | 1.038 | 2020-2027 | |
| 10 | Roger George | 1.025 | 2017-2018 | |
| 11 | Bob Daniels | 1.022 | 2017-2018 | |
| 12 | Hyo-sang O | 1.015 | 2021-2028 | |
| 13 | Tony Durango | 1.014 | 2021-2022 | |
| 14 | Daniel Cruz# | 1.010 | 2030-2032 | |
| 15 | Carlos Durán | 1.009 | 2020-2024 | |
| 16 | Misao Fujii# | 1.008 | 2024-2028 | |
| 17 | José Souza | .999 | 2017-2019 | |
| 18 | Michael Hall | .996 | 2024-2027 | |
| 19 | Manuel Chapa | .977 | 2014-2024 | |
| 20 | Iemochi Hayashi | .966 | 2017-2024 | |
| 21 | Shiro Yoshida | .963 | 2015-2025 | |
| 21 | Charlie Hide# | .963 | 2025-2027 | |
| 23 | Chandler Eckard# | .951 | 2019-2023 | |
| 23 | Kyung-jin Yun# | .951 | 2028-2032 | |
| 23 | Jae-hoon Park# | .951 | 2021-2024 | |
| 26 | Jay Wood | .931 | 2021-2025 | |
| 27 | Muralidaran Purujit | .917 | 2018-2022 |
