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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Kinnosuke Miyazaki# | 1.2616 | 2015-2015 | |
| 2 | Mitsuharu Kohara# | 1.2367 | 2015-2015 | |
| 3 | Katsuhiko Yamamoto# | 1.1668 | 2013-2013 | |
| 4 | Kichisaburo Suzuki# | 1.1234 | 2013-2013 | |
| 5 | Misao Kokawa# | 1.1216 | 2014-2014 | |
| 6 | Osamu Ito# | 1.0704 | 2014-2014 | |
| 7 | Hidehira Ogawa# | 1.0625 | 2016-2016 | |
| 8 | Yoshihisa Yamada | 1.0517 | 2013-2013 | |
| 9 | Tomiji Inoue | 1.0366 | 2013-2013 | |
| 10 | Toshikasu Ono# | .9670 | 2016-2016 | |
| 11 | Tetsu Araki# | .9451 | 2016-2016 | |
| 12 | Shintaro Rin | .9429 | 2012-2012 | |
| 13 | Noriyuki Oshima | .9402 | 2015-2015 | |
| 14 | Eisuke Kobayashi | .9277 | 2014-2014 | |
| 15 | Soshu Rin# | .9232 | 2012-2012 | |
| 16 | Tomokazu Fujii# | .9226 | 2016-2016 | |
| 17 | Hiroaki Hirayama | .8922 | 2015-2015 | |
| 18 | Tsuneari Okamura | .8602 | 2014-2014 | |
| 19 | Jo Watanabe# | .8562 | 2015-2015 | |
| 20 | Iemochi Takahashi | .8519 | 2013-2013 | |
| 21 | Tetsui Okamoto | .8503 | 2012-2012 | |
| 22 | Yasukazu Onishi# | .8475 | 2015-2015 | |
| 23 | Nobukazu Ogura# | .8197 | 2016-2016 | |
| 24 | Seiichi Tanaka# | .7717 | 2013-2013 | |
| 25 | Toshiharu Wada# | .7635 | 2016-2016 | |
| 26 | Nobuhito Koyama | .7564 | 2012-2012 | |
| 27 | Ichiro Fukuda | .7503 | 2012-2012 | |
| 28 | Yodo Hagiwara | .7438 | 2015-2015 | |
| 29 | Shinkichi Kokawa | .7358 | 2013-2013 | |
| 30 | Kuniyuki Makino | .7299 | 2013-2013 | |
| 31 | Katsunan Ogino | .7223 | 2013-2013 | |
| 32 | Takuro Ono# | .7209 | 2016-2016 | |
| 33 | Kyoichi Yamaguchi# | .7112 | 2016-2016 | |
| 34 | Kansuke Nakada | .7075 | 2014-2014 | |
| 35 | Hogai Kuwabara | .6963 | 2012-2012 | |
| 36 | Shiba Yoshii | .6892 | 2013-2013 | |
| 37 | Masahiro Asai | .6879 | 2015-2015 | |
| 38 | Masahiko Koga | .6804 | 2014-2014 | |
| 39 | Maresuke Kodama | .6792 | 2012-2012 | |
| 40 | Hisashi Inoue | .6735 | 2015-2015 | |
| 41 | Tsuramatsu Furukawa | .6359 | 2012-2012 | |
| 42 | Yoshii Kubo | .6145 | 2014-2014 | |
| 43 | Akihisa Inagawa# | .6140 | 2016-2016 | |
| 44 | Shihi Suzuki | .5848 | 2015-2015 | |
| 45 | Ryutaro Nemoto | .4811 | 2012-2012 |
