| 12/31/2015 | ||||||
 |
| |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Yodo Inagaki# | .6705 | 2012-2012 | |
| 2 | Shusaku Sugiyama# | .6551 | 2015-2015 | |
| 3 | Saikaku Endo | .6380 | 2013-2013 | |
| 4 | Yoshifumi Yamamoto# | .4871 | 2014-2014 | |
| 5 | Yoshino Okabe# | .4849 | 2014-2014 | |
| 6 | Yoshida Hayakawa# | .4342 | 2012-2012 | |
| 7 | Ieyoshi Matsuo# | .4324 | 2015-2015 | |
| 8 | Kiichi Okazaki | .3917 | 2013-2013 | |
| 9 | Nobuhiko Okuta# | .3811 | 2014-2014 | |
| 10 | Hirotada Sasaki# | .3545 | 2014-2014 | |
| 11 | Masakado Kichida# | .3354 | 2015-2015 | |
| 12 | Yeijiro Ohayashi | .3351 | 2013-2013 | |
| 13 | Rintaro Toyota | .3307 | 2013-2013 | |
| 14 | Yasuo Kato | .3296 | 2013-2013 |
