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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ogai Asuhara# | .4174 | 2033-2042 | |
| 2 | Leonardo Flores | .3810 | 2022-2027 | |
| 3 | Terumoto Eida# | .3779 | 2030-2037 | |
| 4 | Seika Saito | .3616 | 2019-2031 | |
| 5 | Tokuhei Agano# | .3594 | 2024-2040 | |
| 6 | Sotatsu Kozawa# | .3566 | 2034-2043 | |
| 7 | Tsugiharu Okamoto# | .3210 | 2036-2042 | |
| 8 | Naomi Okada# | .3078 | 2034-2043 | |
| 9 | Jin Nishi# | .2993 | 2034-2041 |
