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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | SLG | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Ryoma Nakano# | .7558 | 2016-2016 | |
| 2 | Kazuhiko Kimura# | .7489 | 2015-2015 | |
| 3 | Tsuruki Kiyomizu# | .7050 | 2015-2015 | |
| 4 | Ryuzaburo Ine | .6732 | 2015-2015 | |
| 5 | Kosami Kogawa# | .6647 | 2016-2016 | |
| 6 | Akio Toyoda# | .6431 | 2014-2014 | |
| 7 | Shihi Yoshida# | .6417 | 2014-2014 | |
| 8 | Kuniyuki Akiyama | .6087 | 2014-2014 | |
| 9 | Matsusuke Kichikawa# | .6040 | 2014-2014 | |
| 10 | Juro Mizutani | .6035 | 2013-2013 | |
| 11 | Hideyori Kiyomizu# | .5949 | 2012-2012 | |
| 12 | Mitsuoki Suzuki# | .5874 | 2012-2012 | |
| 13 | Motoichi Sugiyama# | .5823 | 2016-2016 | |
| 14 | Kosho Hayashi# | .5677 | 2015-2015 | |
| 15 | Tokuma Takeuchi | .5593 | 2015-2015 | |
| 16 | Takayuki Yamada | .5589 | 2014-2014 | |
| 17 | Isei Ikeda | .5583 | 2013-2013 | |
| 18 | Hirotsugu Kiyomizu | .5562 | 2015-2015 | |
| 19 | Ryuzaburo Ohayashi | .5338 | 2014-2014 | |
| 20 | Hirotsugu Kaneko# | .5314 | 2013-2013 | |
| 21 | Masami Kobayashi | .4980 | 2015-2015 | |
| 22 | Masato Ogawa | .4971 | 2013-2013 | |
| 23 | Yukio Kouno# | .4948 | 2013-2013 | |
| 24 | Kiyoshi Kichida# | .4870 | 2015-2015 | |
| 25 | Norio Kono | .4828 | 2015-2015 | |
| 25 | Katsumi Sakaguchi | .4828 | 2013-2013 | |
| 27 | Shimei Omori# | .4756 | 2012-2012 | |
| 28 | Hidetada Iijima | .4711 | 2015-2015 | |
| 29 | Joji Nakashima# | .4593 | 2016-2016 | |
| 30 | Tomiichi Kishita# | .4567 | 2013-2013 | |
| 31 | Kumanosuke Tagawa | .4548 | 2015-2015 | |
| 32 | Shunen Morita# | .4533 | 2016-2016 | |
| 33 | Kazu Abe | .4522 | 2014-2014 | |
| 34 | Hidetada Yamada# | .4518 | 2012-2012 | |
| 35 | Horiuchi Shinohara | .4108 | 2014-2014 | |
| 36 | Yoichi Yasuda | .3971 | 2015-2015 | |
| 37 | Shusui Tanaka | .3909 | 2012-2012 | |
| 38 | Hiroji Ogawa# | .3879 | 2013-2013 | |
| 39 | Takayuki Yoshida# | .3876 | 2016-2016 | |
| 40 | Toyoharu Kimura | .3855 | 2012-2012 | |
| 41 | Seinosuke Memoto | .3819 | 2014-2014 | |
| 42 | Shojiro Iida# | .3734 | 2012-2012 | |
| 43 | Yaichiro Noda# | .3713 | 2016-2016 | |
| 44 | Tokugawa Yamanaka# | .3699 | 2016-2016 | |
| 45 | Kikaku Hayashi | .3624 | 2012-2012 | |
| 46 | Ippei Kino | .3620 | 2012-2012 | |
| 47 | Takuji Hakui# | .3616 | 2012-2012 | |
| 48 | Shun'ichi Abe | .3529 | 2012-2012 | |
| 49 | Hisaki Ono | .3093 | 2012-2012 | |
| 50 | Masaharu Hoshino# | .3084 | 2016-2016 | |
| 51 | Masamune Morishita | .3021 | 2012-2012 | |
| 52 | Ton Mochizuki# | .2900 | 2012-2012 | |
| 53 | Shinobu Sato# | .2114 | 2017-2017 |
