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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Nicholas Littmann# | .4484 | 1953 | |
| 2 | Jesus Gelacio# | .4000 | 1954 | |
| 3 | Nicholas Littmann# | .3944 | 1954 | |
| 4 | Jesus Gelacio# | .3866 | 1952 | |
| 5 | Jamie McIntyre# | .3861 | 1952 | |
| 6 | Jesus Gelacio# | .3764 | 1953 | |
| 7 | Billy Connell# | .3738 | 1952 | |
| 8 | Bob Foster# | .3729 | 1954 | |
| 9 | Billy Connell# | .3705 | 1953 | |
| 10 | Nick Garrity# | .3690 | 1952 | |
| 11 | Hector Molina# | .3555 | 1952 | |
| 12 | Cipriano Furio# | .3545 | 1952 | |
| 13 | Bob Foster# | .3533 | 1953 | |
| 14 | Billy Connell# | .3412 | 1954 | |
| 15 | Ahvo Lampinen# | .3392 | 1952 | |
| 16 | Ryusuke Sugihara# | .3322 | 1954 | |
| 17 | Bob Foster# | .3298 | 1955 | |
| 18 | Romain Larue# | .3231 | 1953 | |
| 19 | Harry Carr# | .3186 | 1952 | |
| 20 | Josh Anderson# | .2682 | 1952 |
