| 12/31/2014 | ||||||
 |
| |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Katsuhiko Yamamoto# | .7459 | 2013-2013 | |
| 2 | Kichisaburo Suzuki# | .6738 | 2013-2013 | |
| 3 | Osamu Ito# | .6448 | 2014-2014 | |
| 4 | Misao Kokawa# | .6254 | 2014-2014 | |
| 5 | Tomiji Inoue# | .5728 | 2013-2013 | |
| 6 | Shintaro Rin# | .5485 | 2012-2012 | |
| 7 | Soshu Rin# | .5232 | 2012-2012 | |
| 8 | Tetsui Okamoto | .5027 | 2012-2012 | |
| 9 | Eisuke Kobayashi# | .4862 | 2014-2014 | |
| 10 | Iemochi Takahashi# | .4798 | 2013-2013 | |
| 11 | Tsuneari Okamura# | .4786 | 2014-2014 | |
| 12 | Nobuhito Koyama# | .4183 | 2012-2012 | |
| 13 | Seiichi Tanaka# | .4092 | 2013-2013 | |
| 14 | Kuniyuki Makino# | .3725 | 2013-2013 | |
| 15 | Hogai Kuwabara | .3553 | 2012-2012 | |
| 16 | Tsuramatsu Furukawa | .3552 | 2012-2012 | |
| 17 | Masahiko Koga# | .3471 | 2014-2014 | |
| 18 | Shiba Yoshii# | .3345 | 2013-2013 | |
| 19 | Yoshii Kubo# | .3333 | 2014-2014 | |
| 20 | Ryutaro Nemoto | .2438 | 2012-2012 |
