| 12/31/2015 | ||||||
 |
| |
| Rank | Player | IP | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Katsumoto Nakayama# | 840.1 | 2014-2014 | |
| 2 | Hiroji Sugahara# | 829.0 | 2014-2014 | |
| 3 | Taki Wada# | 796.1 | 2014-2014 | |
| 4 | Sekien Ohashi# | 787.0 | 2014-2014 | |
| 5 | Takuma Kobayashi | 775.0 | 2013-2013 | |
| 6 | Nobuo Sugahara# | 769.2 | 2014-2014 | |
| 7 | Tetsu Nishimura# | 769.0 | 2012-2012 |
