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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ray Feltz# | .3714 | 1952-1955 | |
| 2 | Kazu Nakanishi# | .3520 | 1952-1955 | |
| 3 | Jorge Lopez# | .3430 | 1953-1955 | |
| 4 | Josh Parker# | .3313 | 1952-1954 | |
| 5 | Huibert van Duren# | .3262 | 1954-1955 | |
| 6 | Josh Lewis | .3257 | 1952-1954 | |
| 7 | Donato Marciano# | .3205 | 1952-1955 | |
| 8 | Byron Ward# | .3161 | 1952-1955 | |
| 9 | Greg Ivany# | .3158 | 1952-1955 | |
| 10 | Harry Cook# | .3143 | 1952-1955 | |
| 11 | Girolamo Iuliano# | .3133 | 1952-1954 | |
| 12 | Joel Reid# | .3115 | 1952-1955 | |
| 13 | Kei Kamiya# | .3083 | 1954-1955 | |
| 14 | Joe Brewer# | .3030 | 1952-1955 | |
| 15 | Bill Purkis# | .2962 | 1954-1955 |
