| 12/31/2016 | ||||||
 |
| |
| Rank | Player | ERA | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Tokaji Goto# | 1.467 | 2015-2015 | |
| 2 | Kinnosuke Sato# | 1.708 | 2013-2013 | |
| 3 | Tsuneyo Kakutama# | 2.135 | 2013-2013 | |
| 4 | Seinosuke Yokota | 2.186 | 2013-2013 | |
| 5 | Yoshinobu Kondo# | 2.281 | 2012-2012 | |
| 6 | Tadanobu Kamida | 2.368 | 2014-2014 | |
| 7 | Yoshifumi Ito# | 2.427 | 2016-2016 | |
| 8 | Takao Onishi# | 2.690 | 2014-2014 | |
| 9 | Kosaku Sakaguchi# | 2.721 | 2015-2015 | |
| 10 | Sakutaro Eida# | 2.722 | 2012-2012 | |
| 11 | Subaru Kishita# | 2.845 | 2016-2016 | |
| 12 | Isei Okada | 2.953 | 2014-2014 | |
| 13 | Reijiro Yamaguchi# | 3.013 | 2013-2013 | |
| 14 | Kenzo Takashita | 3.018 | 2012-2012 | |
| 15 | Toshikasu Takahashi# | 3.060 | 2016-2016 | |
| 16 | Hideki Ohayashi# | 3.084 | 2015-2015 | |
| 17 | Yujiro Tanaka | 3.087 | 2012-2012 | |
| 18 | Mushanokoji Uchida# | 3.096 | 2012-2012 | |
| 19 | Hisanobu Taniguchi# | 3.124 | 2016-2016 | |
| 20 | Yasujiro Koda# | 3.197 | 2016-2016 | |
| 21 | Kazuhiro Taguchi# | 3.212 | 2013-2013 | |
| 22 | Tadashi Sakamoto# | 3.248 | 2014-2014 | |
| 23 | Yoshiaga Ueno# | 3.260 | 2015-2015 | |
| 24 | Sadanobu Kichida# | 3.333 | 2016-2016 | |
| 25 | Hirofumi Matsumoto | 3.338 | 2014-2014 | |
| 26 | Iemochi Kurihara | 3.360 | 2014-2014 | |
| 27 | Atsushi Takahashi# | 3.421 | 2015-2015 | |
| 28 | Kazuhiko Kanno# | 3.458 | 2012-2012 | |
| 29 | Masahide Memoto# | 3.500 | 2013-2013 | |
| 30 | Toshiki Koda# | 3.511 | 2012-2012 | |
| 31 | Tsutomu Suzuki# | 3.640 | 2012-2012 | |
| 32 | Hiroaki Ine# | 3.709 | 2012-2012 | |
| 33 | Masaki Kichida# | 3.944 | 2015-2015 | |
| 34 | Terumoto Yamamoto# | 3.947 | 2014-2014 | |
| 35 | Takuji Taguchi# | 3.987 | 2015-2015 | |
| 36 | Mashashi Tanaka# | 4.013 | 2015-2015 | |
| 37 | Teika Yamada | 4.026 | 2012-2012 | |
| 38 | Haruki Ohashi | 4.127 | 2014-2014 | |
| 39 | Tadamasa Kiyomizu | 4.154 | 2012-2012 | |
| 40 | Masamune Hayashi# | 4.245 | 2016-2016 | |
| 41 | Muneyaki Ichihara# | 4.327 | 2014-2014 | |
| 42 | Hisamitsu Kohara | 4.328 | 2013-2013 | |
| 43 | Kunimatsu Taniguchi | 4.400 | 2013-2013 | |
| 44 | Jun Ono | 4.449 | 2012-2012 | |
| 45 | Noriaki Kichida# | 4.540 | 2014-2014 | |
| 46 | Juichi Noda# | 4.568 | 2016-2016 | |
| 47 | Tetsuya Yamashita | 4.614 | 2012-2012 | |
| 48 | Kazu Sato | 4.659 | 2013-2013 | |
| 49 | Tadasuke Kato# | 4.705 | 2012-2012 | |
| 50 | Eiichi Miyazaki# | 4.835 | 2015-2015 | |
| 51 | Namboku Goto# | 4.872 | 2016-2016 | |
| 52 | Shusaku Suitani | 4.898 | 2014-2014 | |
| 53 | Shosuke Kichikawa | 5.076 | 2013-2013 | |
| 54 | Naozane Matsui# | 5.400 | 2012-2012 | |
| 55 | Yasuo Oyama# | 5.449 | 2015-2015 | |
| 56 | Takanibu Sato | 5.588 | 2013-2013 | |
| 57 | Daisuke Nakanishi# | 5.844 | 2016-2016 | |
| 58 | Keisuke Nakamura | 6.288 | 2014-2014 |
