 |
| |
| League History Index | Players | Teams | Managers | Leagues | Leaderboards | Awards | Accomplishments |
| Rank | Player | EFF | YEAR | Open Season Leaderboard |
|---|---|---|---|---|
| 1 | Yukio Kubo# | 1.076 | 1940-1947 | |
| 2 | Satomu Kono | 1.038 | 1938-1944 | |
| 3 | Susumu Sasada | 1.029 | 1938-1943 | |
| 4 | Hokuto Yamamoto# | 1.021 | 1938-1947 | |
| 5 | Tomoyoshi Takeuchi# | 1.019 | 1944-1947 | |
| 6 | Teruhiko Iwahashi# | 1.017 | 1938-1947 | |
| 7 | Toyonobu Iwasaki | 1.008 | 1939-1944 | |
| 8 | Yoshizumi Smith# | 0.983 | 1939-1947 | |
| 9 | Souta Aoyama# | 0.967 | 1938-1947 |
