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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Owen Bond# | .5117 | 1952 | |
| 2 | Kazu Nakanishi# | .4837 | 1955 | |
| 3 | Joe Brewer# | .4574 | 1954 | |
| 4 | Kei Kamiya# | .4559 | 1954 | |
| 5 | Byron Ward# | .4441 | 1953 | |
| 6 | Harry Cook# | .4369 | 1955 | |
| 7 | Jorge Lopez# | .4333 | 1955 | |
| 8 | Josh Parker# | .4318 | 1954 | |
| 9 | Joe Brewer# | .4232 | 1953 | |
| 10 | Donato Marciano# | .4031 | 1955 | |
| 11 | Donato Marciano# | .3981 | 1954 | |
| 12 | Jeremy Hickey | .3909 | 1952 | |
| 13 | Huibert van Duren# | .3821 | 1954 | |
| 14 | Harry Cook# | .3782 | 1954 | |
| 15 | Ray Feltz# | .3746 | 1952 | |
| 16 | Josh Lewis | .3704 | 1953 | |
| 17 | Josh Lewis | .3688 | 1954 | |
| 18 | Byron Ward# | .3686 | 1954 | |
| 19 | Huibert van Duren# | .3683 | 1955 | |
| 20 | Josh Parker# | .3677 | 1953 | |
| 21 | Joe Brewer# | .3650 | 1955 | |
| 22 | Josh Parker# | .3556 | 1952 | |
| 23 | Joel Reid# | .3454 | 1952 | |
| 24 | Bill Purkis# | .3396 | 1955 | |
| 25 | Girolamo Iuliano# | .3322 | 1953 | |
| 26 | Kei Kamiya# | .3301 | 1955 | |
| 27 | Girolamo Iuliano# | .3271 | 1952 | |
| 28 | Greg Ivany# | .3167 | 1953 | |
| 29 | Tony Garcia# | .3098 | 1953 | |
| 30 | Harry Cook# | .2660 | 1953 |
