| 12/31/2015 | ||||||
 |
| |
| Rank | Player | OBP | YEAR | Open Career Leaderboard |
|---|---|---|---|---|
| 1 | Toyoaki Ishikawa# | .4412 | 2015 | |
| 2 | Toyoharu Okumiya | .4362 | 2013 | |
| 3 | Ichizo Hirose | .4342 | 2012 | |
| 4 | Kohei Takeuchi# | .4200 | 2013 | |
| 5 | Robun Tanaka | .4167 | 2013 | |
| 6 | Ryozo Daikawa | .4101 | 2013 | |
| 7 | Katsumoto Nakayama# | .4072 | 2014 | |
| 8 | Tetsu Nishimura# | .4035 | 2012 | |
| 9 | Junji Kichida# | .3953 | 2015 | |
| 10 | Taki Wada# | .3923 | 2014 | |
| 11 | Ichizo Sato# | .3921 | 2015 | |
| 12 | Nobuo Sugahara# | .3855 | 2014 | |
| 13 | Toyotomi Takeuchi# | .3834 | 2014 | |
| 14 | Taizo Kimura# | .3830 | 2014 | |
| 15 | Sadao Ando# | .3769 | 2015 | |
| 16 | Koki Ageda# | .3678 | 2015 | |
| 17 | Takanori Higashi# | .3648 | 2012 | |
| 18 | Takuma Kobayashi | .3595 | 2013 | |
| 19 | Konosuke Watanabe# | .3531 | 2014 | |
| 20 | Yoshihito Tanabe | .3480 | 2013 | |
| 21 | Sekien Ohashi# | .3444 | 2014 | |
| 22 | Sozen Ito# | .3441 | 2015 | |
| 23 | Katsunosuki Yamada | .3373 | 2013 | |
| 24 | Daisuke Watanabe# | .3291 | 2015 | |
| 25 | Kijuro Yamada# | .3081 | 2014 | |
| 26 | Josuke Kawano# | .3070 | 2015 | |
| 27 | Toyokazu Miyake | .3006 | 2013 | |
| 28 | Kichibei Kato | .2972 | 2012 | |
| 29 | Yoshimune Nakanishi# | .2879 | 2014 | |
| 30 | Hiroji Sugahara# | .2774 | 2014 |
