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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | OBP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Soseki Aoki# | .4685 | 2016-2016 | |
| 2 | Shusaku Sugiyama# | .4589 | 2015-2015 | |
| 3 | Saikaku Endo | .4388 | 2013-2013 | |
| 4 | Totoya Fukushima# | .4316 | 2013-2013 | |
| 5 | Seitaro Uenohara# | .4222 | 2012-2012 | |
| 6 | Kiichi Okazaki | .4197 | 2013-2013 | |
| 7 | Kazuyuki Suzuki | .3988 | 2013-2013 | |
| 8 | Soichiro Sugiyama | .3955 | 2014-2014 | |
| 9 | Yoshino Okabe# | .3946 | 2014-2014 | |
| 10 | Yodo Inagaki# | .3894 | 2012-2012 | |
| 11 | Norogumi Suzuki | .3875 | 2016-2016 | |
| 12 | Robun Tanaka | .3822 | 2016-2016 | |
| 13 | Yoshida Hayakawa# | .3792 | 2012-2012 | |
| 14 | Yugoro Kudara | .3785 | 2013-2013 | |
| 15 | Ieyoshi Matsuo | .3743 | 2015-2015 | |
| 16 | Mario Romero# | .3708 | 2017-2018 | |
| 17 | Yoshifumi Yamamoto | .3690 | 2014-2014 | |
| 18 | Masakado Kichida | .3582 | 2015-2015 | |
| 19 | Narihari Kuhabara | .3578 | 2016-2016 | |
| 20 | Jaideva Veerender# | .3537 | 2017-2018 | |
| 21 | Toyoaki Azuma | .3432 | 2015-2015 | |
| 22 | Xi-wang Xian# | .3401 | 2017-2018 | |
| 23 | Yen-nien Zhou# | .3383 | 2017-2018 | |
| 24 | Yura Edelstein# | .3367 | 2017-2018 | |
| 25 | Seiryo Miyazaki | .3363 | 2015-2015 | |
| 26 | Toshiharu Kichida | .3314 | 2014-2014 | |
| 27 | Toshio Shiroi | .3299 | 2016-2016 | |
| 28 | Nobuhiko Okuta | .3282 | 2014-2014 | |
| 29 | Sadaharu Watanabe | .3218 | 2014-2014 | |
| 30 | Juichi Kino# | .3207 | 2017-2018 | |
| 31 | Rintaro Toyota | .3205 | 2013-2013 | |
| 32 | Yoriyoshi Ine | .3204 | 2016-2016 | |
| 33 | Ryuzaburo Oda | .3195 | 2014-2014 | |
| 34 | Hikaru Tashima | .3133 | 2016-2016 | |
| 34 | Yasuo Kato | .3133 | 2013-2013 | |
| 36 | Yeijiro Ohayashi | .3084 | 2013-2013 | |
| 37 | Sosa Higashi | .3020 | 2015-2015 | |
| 38 | Yoshitaka Kan | .3013 | 2016-2016 | |
| 39 | Noriyuki Inoue | .2970 | 2016-2016 | |
| 40 | Hirotada Sasaki | .2964 | 2014-2014 | |
| 41 | Basker Sahni# | .2961 | 2017-2018 | |
| 42 | Yoshihisa Chikafuji | .2933 | 2015-2015 | |
| 43 | Sozen Kimura | .2920 | 2014-2014 | |
| 44 | Sozen Shimizu | .2894 | 2015-2015 | |
| 45 | Hiroharu Mori | .2818 | 2016-2016 | |
| 46 | Sosa Hayakawa | .2791 | 2016-2016 | |
| 47 | Yorikane Sai | .2685 | 2015-2015 | |
| 48 | Koji Miyakawa | .2603 | 2014-2014 |
