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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Shiro Kamida# | .7741 | 2016-2016 | |
| 2 | Ken'ichi Amano# | .7016 | 2016-2016 | |
| 3 | Masaki Baba# | .6834 | 2013-2013 | |
| 4 | Nobuhisa Yokoyama# | .6778 | 2013-2013 | |
| 5 | Tsuramatsu Iijima# | .6466 | 2014-2014 | |
| 6 | Mokichi Kono# | .6448 | 2015-2015 | |
| 7 | Tatsuzo Watanabe | .6417 | 2013-2013 | |
| 8 | Kazuyoshi Suitani# | .6354 | 2012-2012 | |
| 9 | Kata Nishikawa# | .6324 | 2016-2016 | |
| 10 | Mushanokoji Takano | .6269 | 2014-2014 | |
| 11 | Hirokazu Matsumoto# | .6237 | 2015-2015 | |
| 12 | Soshu Hirose | .6189 | 2013-2013 | |
| 13 | Naonobu Seki# | .6116 | 2016-2016 | |
| 14 | Yoritomo Yamaguchi# | .6106 | 2015-2015 | |
| 15 | Yoshihiro Kouno | .6007 | 2012-2012 | |
| 16 | Kokei Sugimoto# | .5802 | 2016-2016 | |
| 17 | Seinosuke Onishi | .5668 | 2014-2014 | |
| 18 | Tetsui Jouon# | .5604 | 2012-2012 | |
| 19 | Tetsuo Chikuda# | .5526 | 2015-2015 | |
| 20 | Maresuke Kato# | .5458 | 2015-2015 | |
| 21 | Yoshino Kobayashi# | .5373 | 2014-2014 | |
| 22 | Seitaro Maruyama# | .5316 | 2012-2012 | |
| 23 | Naofumi Nakayama# | .5226 | 2016-2016 | |
| 24 | Murai Ito | .5120 | 2012-2012 | |
| 25 | Yohachi Nakashima | .5107 | 2015-2015 | |
| 26 | Kiyohisa Eida# | .5045 | 2017-2017 | |
| 27 | Tatsukichi Otani | .4852 | 2013-2013 | |
| 28 | Yuichi Ogawa | .4829 | 2015-2015 | |
| 29 | Yasuyuki Hirano# | .4787 | 2014-2014 | |
| 30 | Takane Saito | .4696 | 2013-2013 | |
| 31 | Teika Seki# | .4642 | 2016-2016 | |
| 32 | Sumiteru Yoshida | .4442 | 2014-2014 | |
| 33 | Kazuo Kichida | .4370 | 2013-2013 | |
| 34 | Toshikazu Kaneko | .4309 | 2013-2013 | |
| 35 | Hideo Aoki | .3953 | 2012-2012 | |
| 36 | Keisuke Maeda | .3677 | 2013-2013 | |
| 37 | Shun Asano | .3664 | 2014-2014 | |
| 38 | Shunsho Matsuo | .3634 | 2014-2014 | |
| 39 | Sojuro Ueda | .3511 | 2012-2012 | |
| 40 | Kyoichi Okabe# | .3455 | 2016-2016 | |
| 41 | Yoichi Sumita | .3394 | 2014-2014 | |
| 42 | Masakado Kobayashi | .3333 | 2013-2013 | |
| 43 | Masaharu Kichikawa | .3309 | 2012-2012 | |
| 44 | Yoriie Fujita | .3167 | 2012-2012 |
