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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OPS | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Shusaku Sugiyama# | 1.1139 | 2015-2015 | |
| 2 | Saikaku Endo | 1.0768 | 2013-2013 | |
| 3 | Yodo Inagaki# | 1.0599 | 2012-2012 | |
| 4 | Soseki Aoki# | 1.0246 | 2016-2016 | |
| 5 | Seitaro Uenohara# | .9966 | 2012-2012 | |
| 6 | Totoya Fukushima# | .8971 | 2013-2013 | |
| 7 | Yoshino Okabe# | .8795 | 2014-2014 | |
| 8 | Kazuyuki Suzuki | .8728 | 2013-2013 | |
| 9 | Yoshifumi Yamamoto | .8561 | 2014-2014 | |
| 10 | Mario Romero# | .8440 | 2017-2018 | |
| 11 | Yoshida Hayakawa# | .8134 | 2012-2012 | |
| 12 | Kiichi Okazaki | .8114 | 2013-2013 | |
| 13 | Ieyoshi Matsuo | .8068 | 2015-2015 | |
| 14 | Norogumi Suzuki | .8055 | 2016-2016 | |
| 15 | Yugoro Kudara | .8038 | 2013-2013 | |
| 16 | Jaideva Veerender# | .7817 | 2017-2018 | |
| 16 | Toyoaki Azuma | .7817 | 2015-2015 | |
| 18 | Toshio Shiroi | .7647 | 2016-2016 | |
| 19 | Yura Edelstein# | .7602 | 2017-2018 | |
| 20 | Robun Tanaka | .7588 | 2016-2016 | |
| 21 | Soichiro Sugiyama | .7400 | 2014-2014 | |
| 22 | Xi-wang Xian# | .7390 | 2017-2018 | |
| 23 | Narihari Kuhabara | .7378 | 2016-2016 | |
| 24 | Yen-nien Zhou# | .7330 | 2017-2018 | |
| 25 | Seiryo Miyazaki | .7100 | 2015-2015 | |
| 26 | Nobuhiko Okuta | .7093 | 2014-2014 | |
| 27 | Juichi Kino# | .7072 | 2017-2018 | |
| 28 | Basker Sahni# | .7011 | 2017-2018 | |
| 29 | Yoshitaka Kan | .6973 | 2016-2016 | |
| 30 | Masakado Kichida | .6937 | 2015-2015 | |
| 31 | Yoriyoshi Ine | .6885 | 2016-2016 | |
| 32 | Ryuzaburo Oda | .6807 | 2014-2014 | |
| 33 | Sadaharu Watanabe | .6670 | 2014-2014 | |
| 34 | Rintaro Toyota | .6511 | 2013-2013 | |
| 35 | Hirotada Sasaki | .6509 | 2014-2014 | |
| 36 | Toshiharu Kichida | .6502 | 2014-2014 | |
| 37 | Yeijiro Ohayashi | .6435 | 2013-2013 | |
| 38 | Sosa Hayakawa | .6433 | 2016-2016 | |
| 39 | Yasuo Kato | .6428 | 2013-2013 | |
| 40 | Hikaru Tashima | .6359 | 2016-2016 | |
| 41 | Hiroharu Mori | .6263 | 2016-2016 | |
| 42 | Sosa Higashi | .6162 | 2015-2015 | |
| 43 | Noriyuki Inoue | .6105 | 2016-2016 | |
| 44 | Sozen Kimura | .5999 | 2014-2014 | |
| 45 | Sozen Shimizu | .5797 | 2015-2015 | |
| 46 | Yoshihisa Chikafuji | .5748 | 2015-2015 | |
| 47 | Koji Miyakawa | .5668 | 2014-2014 | |
| 48 | Yorikane Sai | .5439 | 2015-2015 |
