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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OOBP | YEAR | Open Postseason Leaderboard |
|---|---|---|---|---|
| 1 | Cesar Arfè | .2651 | 1907-1913 | |
| 2 | Raynard Weber | .2657 | 1907-1914 | |
| 3 | Sal Mastroianni# | .2771 | 1907-1914 | |
| 4 | Ubaldo Mezzatesta | .2778 | 1907-1914 | |
| 5 | Pieroantonio Cardia# | .2795 | 1907-1914 | |
| 6 | Emir Halil | .2992 | 1907-1914 | |
| 7 | Dominik Forejt | .2996 | 1907-1914 | |
| 8 | Mathieu Arfè | .3022 | 1907-1914 | |
| 9 | Michal Havrda | .3035 | 1907-1914 | |
| 10 | Aymeric Arcimboldo | .3057 | 1907-1914 | |
| 11 | Hubert Rohde | .3198 | 1907-1914 | |
| 12 | Rudi Alexander# | .3203 | 1907-1914 | |
| 13 | Ottavio Cantimori | .3212 | 1907-1914 | |
| 14 | Vavrik Spur | .3227 | 1907-1914 | |
| 15 | Theodorich Martin | .3233 | 1907-1914 | |
| 16 | Verdiano Loria | .3256 | 1907-1914 | |
| 17 | Alba Florido | .3352 | 1907-1914 | |
| 17 | Nimet Kemalettin | .3352 | 1907-1914 | |
| 19 | Matej Pahor | .3387 | 1907-1914 | |
| 20 | Otmar Velikonja | .3388 | 1907-1914 | |
| 21 | Dalimil Mares | .3391 | 1907-1914 | |
| 22 | Sebald Zimmerman | .3434 | 1907-1914 | |
| 23 | Webber Zimmer | .3665 | 1907-1914 |
