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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Satoshi Kuhabara# | .6677 | 2015-2015 | |
| 2 | Izo Kichikawa | .6360 | 2012-2012 | |
| 3 | Mashashi Kogawa# | .6196 | 2013-2013 | |
| 4 | Totoya Sakei# | .5959 | 2014-2014 | |
| 5 | Takeichi Hamada | .5952 | 2016-2016 | |
| 6 | Atsumori Sakamoto | .5918 | 2013-2013 | |
| 7 | Teruo Suzuki# | .5652 | 2016-2016 | |
| 8 | Mitsuoki Aoki | .5491 | 2014-2014 | |
| 9 | Masamune Kawai | .5378 | 2014-2014 | |
| 10 | Takao Kato | .5323 | 2013-2013 | |
| 11 | Natsume Fujihara# | .5315 | 2012-2012 | |
| 12 | Kaoru Agano | .5304 | 2016-2016 | |
| 13 | Moromao Kouda# | .5215 | 2014-2014 | |
| 14 | Magobei Uchida | .5175 | 2015-2015 | |
| 15 | Yoshitora Suzuki# | .5088 | 2015-2015 | |
| 16 | Tetsui Ohayashi | .5067 | 2013-2013 | |
| 17 | Hisanobu Inoue | .4940 | 2014-2014 | |
| 18 | Tsugahara Yamamoto# | .4913 | 2017-2017 | |
| 19 | Eichiro Kondo | .4807 | 2012-2012 | |
| 20 | Ichiyo Nakashima# | .4659 | 2017-2017 | |
| 21 | Toshiro Hirano | .4603 | 2014-2014 | |
| 22 | Daisuke Murakami | .4570 | 2013-2013 | |
| 23 | Mutsuhito Takeda | .4567 | 2013-2013 | |
| 24 | Kazuyuki Yamada# | .4406 | 2014-2014 | |
| 25 | Toshimichi Kanda | .4382 | 2014-2014 | |
| 26 | Yoshii Nakamura# | .4340 | 2016-2016 | |
| 27 | Hoshi Okumura | .4106 | 2015-2015 | |
| 28 | Natsu Sasaki# | .4079 | 2016-2016 | |
| 29 | Jun'ichi Ogura# | .4071 | 2012-2012 | |
| 30 | Kakuzo Minami | .4061 | 2014-2014 | |
| 31 | Jotaro Harada | .4023 | 2013-2013 | |
| 32 | Masaru Suzuki# | .4015 | 2016-2016 | |
| 33 | Tomokazu Samurakami# | .3887 | 2016-2016 | |
| 34 | Shunen Kobayashi | .3885 | 2013-2013 | |
| 35 | Hyotaru Noro | .3713 | 2015-2015 | |
| 36 | Teinosuke Yamada | .3655 | 2015-2015 | |
| 37 | Kenji Nakada | .3592 | 2012-2012 | |
| 38 | Ryosei Honma | .3496 | 2012-2012 | |
| 39 | Tamasaburo Yamasaki | .3485 | 2015-2015 | |
| 40 | Masahiko Takahashi# | .3441 | 2012-2012 | |
| 41 | Motonobu Higashi | .3361 | 2015-2015 | |
| 42 | Yuki Saikawa | .3289 | 2015-2015 | |
| 43 | Yasukazu Chikafuji | .3269 | 2015-2015 | |
| 44 | Sen Aoki# | .3227 | 2016-2016 | |
| 45 | Shintaro Ikarashi# | .3147 | 2016-2016 | |
| 46 | Sadao Yamaguchi | .3012 | 2013-2013 | |
| 47 | Ryutaro Kodama | .2900 | 2014-2014 |
