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| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | PCT | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Sekien Ohashi | .9946 | 2014-2014 | |
| 2 | Yachi Okamoto# | .9936 | 2016-2016 | |
| 3 | Tetsu Nishimura# | .9919 | 2012-2012 | |
| 4 | Ichizo Hirose | .9843 | 2012-2012 | |
| 5 | Kohei Takeuchi | .9819 | 2013-2013 | |
| 6 | Nobuo Sugahara | .9810 | 2014-2014 | |
| 7 | Toyoaki Ishikawa# | .9795 | 2015-2015 | |
| 8 | Takuma Kobayashi | .9789 | 2013-2013 | |
| 9 | Katsumoto Nakayama# | .9769 | 2014-2014 | |
| 10 | Taki Wada# | .9718 | 2014-2014 | |
| 11 | Hiroji Sugahara | .9641 | 2014-2014 |
