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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Magobei Morita# | .5297 | 2033-2043 | |
| 2 | Munoto Suzuki | .5294 | 2023-2036 | |
| 3 | Ryu Matsumura | .5196 | 2029-2037 | |
| 4 | Yamato Nakano | .5181 | 2034-2040 | |
| 5 | Isei Hayashi | .5170 | 2025-2034 | |
| 6 | Toshiharu Nagai# | .5158 | 2031-2040 | |
| 7 | Curt Wright# | .4950 | 2039-2043 | |
| 8 | Cedric Boon | .4498 | 2029-2038 |
