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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Jesús Vázquez# | .9035 | 1911-1915 | |
| 2 | Pedro Ramírez# | .8558 | 1912-1915 | |
| 3 | Remco Maas# | .8114 | 1914-1915 | |
| 4 | Kazuhito Nii | .7824 | 1909-1915 | |
| 5 | Shigekazu Miyazaki | .7712 | 1909-1915 | |
| 6 | Motosugu Ishizuka | .7592 | 1909-1915 | |
| 7 | Hirose Hatakeyama | .7542 | 1909-1915 | |
| 8 | Shigeaki Otani | .7504 | 1909-1915 | |
| 9 | Abdías Padilla# | .7500 | 1909-1915 | |
| 9 | Junichi Koishizawa | .7500 | 1909-1915 | |
| 11 | Art Griggs# | .7467 | 1909-1915 | |
| 12 | Tsutomu Nagai | .7404 | 1909-1915 | |
| 13 | Owen Wilson# | .7351 | 1909-1915 | |
| 14 | Akinori Yokoi | .7302 | 1909-1915 | |
| 15 | Daichi Kimura | .7285 | 1909-1915 | |
| 16 | Daiki Suzuki | .7194 | 1909-1915 | |
| 17 | Ryo Hirata | .7163 | 1909-1915 | |
| 18 | Ed Hahn | .7152 | 1909-1911 | |
| 19 | Daigo Tamura | .7144 | 1909-1915 | |
| 20 | Marco Antonio Betancurt# | .7112 | 1909-1915 | |
| 21 | Kensuke Hamano | .7058 | 1909-1915 | |
| 22 | Yozo Fujioka | .7057 | 1909-1915 | |
| 23 | Yuichi Taniguchi | .6909 | 1909-1915 | |
| 24 | Kakuzo Okamoto | .6875 | 1909-1913 | |
| 25 | Harry Hooper# | .6777 | 1909-1915 | |
| 26 | Bob Ganley | .6551 | 1909-1911 |
