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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 | Hiroaki Suzuki# | .4161 | 2013-2013 | |
| 8 | Kazuyuki Suzuki | .3988 | 2013-2013 | |
| 9 | Matsuyo Nakada | .3958 | 2012-2012 | |
| 10 | Soichiro Sugiyama | .3955 | 2014-2014 | |
| 11 | Yoshino Okabe# | .3946 | 2014-2014 | |
| 12 | Yodo Inagaki# | .3894 | 2012-2012 | |
| 13 | Norogumi Suzuki# | .3875 | 2016-2016 | |
| 14 | Robun Tanaka# | .3822 | 2016-2016 | |
| 15 | Yoshida Hayakawa# | .3792 | 2012-2012 | |
| 16 | Yugoro Kudara# | .3785 | 2013-2013 | |
| 17 | Ieyoshi Matsuo | .3743 | 2015-2015 | |
| 18 | Yoshifumi Yamamoto | .3690 | 2014-2014 | |
| 19 | Toshikazu Sakai | .3611 | 2012-2012 | |
| 20 | Masakado Kichida | .3582 | 2015-2015 | |
| 21 | Narihari Kuhabara# | .3578 | 2016-2016 | |
| 22 | Toyokazu Hasegawa | .3552 | 2014-2014 | |
| 23 | Kitahachi Matsushita | .3521 | 2013-2013 | |
| 24 | Toyoaki Azuma | .3432 | 2015-2015 | |
| 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 | Tanyu Suzuki | .3218 | 2012-2012 | |
| 29 | Sadaharu Watanabe | .3218 | 2014-2014 | |
| 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 | Tetsuhiko Mori# | .3114 | 2016-2016 | |
| 37 | Yeijiro Ohayashi | .3084 | 2013-2013 | |
| 38 | Sosa Higashi | .3020 | 2015-2015 | |
| 39 | Yoshitaka Kan# | .3013 | 2016-2016 | |
| 40 | Yoshifusa Shimizu | .2989 | 2015-2015 | |
| 41 | Noriyuki Inoue# | .2970 | 2016-2016 | |
| 42 | Hirotada Sasaki | .2964 | 2014-2014 | |
| 43 | Yoshihisa Chikafuji | .2933 | 2015-2015 | |
| 44 | Sozen Kimura | .2920 | 2014-2014 | |
| 45 | Sozen Shimizu | .2894 | 2015-2015 | |
| 46 | Hiroharu Mori | .2818 | 2016-2016 | |
| 47 | Sosa Hayakawa | .2791 | 2016-2016 | |
| 48 | Kichibei Takeuchi | .2772 | 2015-2015 | |
| 49 | Yorikane Sai | .2685 | 2015-2015 | |
| 50 | Koji Miyakawa | .2603 | 2014-2014 |
