| 12/31/2015 | ||||||
 |
| |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Tetsu Nishimura# | .6229 | 2012-2012 | |
| 2 | Kohei Takeuchi# | .6097 | 2013-2013 | |
| 3 | Toyoharu Okumiya | .6078 | 2013-2013 | |
| 4 | Katsumoto Nakayama# | .5074 | 2014-2014 | |
| 5 | Taki Wada# | .4930 | 2014-2014 | |
| 6 | Toyoaki Ishikawa# | .4699 | 2015-2015 | |
| 7 | Robun Tanaka | .4639 | 2013-2013 | |
| 8 | Takuma Kobayashi | .4602 | 2013-2013 | |
| 9 | Sadao Ando# | .4412 | 2015-2015 | |
| 10 | Ryozo Daikawa | .4406 | 2013-2013 | |
| 11 | Ichizo Hirose | .4256 | 2012-2012 | |
| 12 | Sekien Ohashi# | .4051 | 2014-2014 | |
| 13 | Sozen Ito# | .3950 | 2015-2015 | |
| 14 | Katsunosuki Yamada | .3895 | 2013-2013 | |
| 15 | Kichibei Kato | .3844 | 2012-2012 | |
| 16 | Taizo Kimura# | .3802 | 2014-2014 | |
| 17 | Yoshimune Nakanishi# | .3660 | 2014-2014 | |
| 18 | Josuke Kawano# | .3575 | 2015-2015 | |
| 19 | Nobuo Sugahara# | .3512 | 2014-2014 | |
| 20 | Daisuke Watanabe# | .3244 | 2015-2015 | |
| 21 | Kijuro Yamada# | .3014 | 2014-2014 | |
| 22 | Hiroji Sugahara# | .2730 | 2014-2014 |
