 |
| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | ERA | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Tokuzo Osugi# | 1.731 | 1946-1947 | |
| 2 | Tetsuji Iwasaki# | 1.858 | 1946-1947 | |
| 3 | Noburo Kagawa# | 1.944 | 1938-1947 | |
| 4 | Zenjiro Yukimoto# | 2.102 | 1946-1947 | |
| 5 | Hideshi Igarashi# | 2.171 | 1946-1947 | |
| 6 | Kanichi Yokota | 2.194 | 1939-1943 | |
| 7 | Shojiro Tasaka# | 2.239 | 1938-1947 | |
| 8 | Fujio Tanaka# | 2.289 | 1938-1947 | |
| 9 | Shogo Kobayashi | 2.417 | 1938-1946 | |
| 10 | Masahiro Yamashita | 2.459 | 1938-1947 | |
| 11 | Heikichi Kawasaki# | 2.461 | 1939-1947 | |
| 12 | Naski Kanno# | 2.489 | 1946-1947 | |
| 13 | Jiro Kuroda# | 2.507 | 1938-1947 | |
| 14 | Masakado Goto# | 2.568 | 1938-1947 | |
| 15 | Nariakira Yamada# | 2.648 | 1946-1947 | |
| 16 | Masanori Onodera | 2.681 | 1938-1947 | |
| 17 | Akahito Takizawa# | 2.684 | 1939-1947 | |
| 18 | Mizuki Maeda | 2.742 | 1938-1943 | |
| 19 | Mikizo Fukuchi# | 2.749 | 1939-1947 | |
| 20 | Heiichi Funaki# | 2.826 | 1938-1947 | |
| 21 | Yusuke Kimura# | 2.855 | 1938-1947 | |
| 21 | Toshio Iwamoto# | 2.855 | 1946-1947 | |
| 23 | Ken Yamada# | 2.924 | 1942-1947 | |
| 24 | Kodai Takeda# | 2.933 | 1940-1947 | |
| 25 | Takuyuki Shimizu# | 2.975 | 1938-1947 | |
| 26 | Ryuusei Sawai# | 2.982 | 1938-1947 | |
| 27 | Shunzen Terada# | 3.020 | 1941-1947 | |
| 28 | Katsushi Iwashita | 3.035 | 1938-1943 | |
| 29 | Satoshi Smith# | 3.041 | 1939-1947 | |
| 30 | Hachiro Ishii | 3.055 | 1939-1942 | |
| 31 | Hiroyasu Takahashi# | 3.120 | 1938-1947 | |
| 32 | Iori Inouye# | 3.153 | 1944-1947 | |
| 33 | Shinji Nomura | 3.160 | 1938-1947 | |
| 34 | Junichi Furukawa | 3.178 | 1938-1940 | |
| 35 | Gou Sawamura# | 3.283 | 1946-1947 | |
| 36 | Satonori Yamasaki# | 3.350 | 1939-1947 | |
| 37 | Kenko Ito | 3.427 | 1938-1943 | |
| 38 | Murai Aso# | 3.450 | 1938-1947 | |
| 39 | Shinga Yuasa# | 3.484 | 1946-1947 | |
| 40 | Hideo Ito# | 3.522 | 1938-1947 | |
| 41 | Masatoshi Yamada | 3.609 | 1938-1943 | |
| 42 | Minato Shishido# | 3.640 | 1943-1947 | |
| 43 | Yorikane Sato | 3.643 | 1938-1940 | |
| 44 | Matsudaira Susumago# | 3.682 | 1938-1947 | |
| 45 | Tadakatsu Endo# | 3.683 | 1941-1947 | |
| 46 | Ryuhei Takahashi | 3.742 | 1938-1940 | |
| 47 | Toshimichi Uchino# | 3.783 | 1938-1947 | |
| 48 | Ryuzo Imai | 3.796 | 1938-1943 | |
| 49 | Masami Niinuma# | 3.919 | 1939-1947 | |
| 50 | Tomiji Watanabe# | 3.930 | 1939-1947 | |
| 51 | Tadanori Nakagawa# | 3.940 | 1943-1947 | |
| 52 | Yuushirou Watanabe# | 4.135 | 1941-1947 | |
| 53 | Tadashi Hirano | 4.448 | 1938-1942 | |
| 54 | Masayoshi Fujiwara | 4.458 | 1938-1941 | |
| 55 | Akiharu Smith# | 4.987 | 1938-1947 | |
| 56 | Toshifumi Nakai | 5.317 | 1938-1943 |
