 |
| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Masuami Smith# | .4978 | 1950-1961 | |
| 2 | Shinsaku Tashiro# | .4476 | 1952-1961 | |
| 3 | Takanori Matsui# | .4158 | 1955-1961 | |
| 4 | Kitahachi Masuda# | .4044 | 1956-1961 | |
| 5 | Mitsuhisa Nakasone# | .4027 | 1956-1961 | |
| 6 | Yoshiyasu Maeda# | .3813 | 1953-1961 | |
| 7 | Ienari Fujimori# | .3678 | 1956-1961 | |
| 8 | Zaijiro Oki | .3632 | 1950-1960 | |
| 9 | Torai Yamamoto# | .3543 | 1959-1961 | |
| 10 | Pat Ponder# | .3516 | 1954-1961 | |
| 11 | Seibei Ishii# | .3500 | 1954-1961 | |
| 12 | Hidero Fujioka# | .3475 | 1956-1961 | |
| 13 | Niito Katagiri# | .3442 | 1950-1961 | |
| 14 | Kusuo Sato# | .3203 | 1953-1961 | |
| 15 | Okyoito Nishimura# | .2766 | 1955-1961 |
