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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Owen Bond# | 1.042 | 1952-1959 | |
| 2 | Bill Purkis# | 1.040 | 1954-1958 | |
| 3 | Josh Cutsail# | 1.033 | 1952-1957 | |
| 4 | Mike O'Shea# | 1.031 | 1952-1959 | |
| 5 | Wei-hong Shao# | 1.021 | 1952-1959 | |
| 5 | Israel Trujillo# | 1.021 | 1955-1959 | |
| 7 | Kazu Nakanishi# | 1.016 | 1952-1959 | |
| 8 | Jon Bertelson# | 1.013 | 1956-1959 | |
| 9 | Jon Maas# | 1.008 | 1957-1959 | |
| 10 | Eric Snow# | 0.994 | 1952-1959 | |
| 10 | Trace Newman# | 0.994 | 1952-1958 | |
| 12 | Jesus Medina# | 0.992 | 1952-1956 | |
| 13 | Kai Coles# | 0.986 | 1952-1958 | |
| 14 | Juan Montemayor# | 0.979 | 1958-1959 | |
| 15 | Zaccaria Cartellieri# | 0.974 | 1952-1959 | |
| 16 | Daniel Martin# | 0.951 | 1952-1958 |
