| 12/31/2015 | ||||||
 |
| |
| Rank | Player | SLG | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Kinnosuke Miyazaki# | .7628 | 2015 | |
| 2 | Katsuhiko Yamamoto# | .7459 | 2013 | |
| 3 | Mitsuharu Kohara# | .7250 | 2015 | |
| 4 | Kichisaburo Suzuki# | .6738 | 2013 | |
| 5 | Osamu Ito# | .6448 | 2014 | |
| 6 | Misao Kokawa# | .6254 | 2014 | |
| 7 | Tomiji Inoue | .5728 | 2013 | |
| 8 | Shintaro Rin# | .5485 | 2012 | |
| 9 | Noriyuki Oshima# | .5484 | 2015 | |
| 10 | Soshu Rin# | .5232 | 2012 | |
| 11 | Hiroaki Hirayama# | .5152 | 2015 | |
| 12 | Tetsui Okamoto | .5027 | 2012 | |
| 13 | Jo Watanabe# | .4950 | 2015 | |
| 14 | Eisuke Kobayashi# | .4862 | 2014 | |
| 15 | Iemochi Takahashi | .4798 | 2013 | |
| 16 | Tsuneari Okamura# | .4786 | 2014 | |
| 17 | Nobuhito Koyama# | .4183 | 2012 | |
| 18 | Yodo Hagiwara# | .4138 | 2015 | |
| 19 | Seiichi Tanaka# | .4092 | 2013 | |
| 20 | Masahiro Asai# | .3841 | 2015 | |
| 21 | Kuniyuki Makino | .3725 | 2013 | |
| 22 | Hogai Kuwabara | .3553 | 2012 | |
| 23 | Tsuramatsu Furukawa | .3552 | 2012 | |
| 24 | Masahiko Koga# | .3471 | 2014 | |
| 25 | Shiba Yoshii | .3345 | 2013 | |
| 26 | Yoshii Kubo# | .3333 | 2014 | |
| 27 | Shihi Suzuki# | .2779 | 2015 | |
| 28 | Ryutaro Nemoto | .2438 | 2012 |
