| Tournament details | |
|---|---|
| Country |  Japan |
| Final positions | |
| Champions | Keio BRB |
| Runner-up | Waseda University |
| Semifinalists | |
Statistics of Emperor's Cup in the 1940 season.
| Tournament details | |
|---|---|
| Country | Japan |
| Final positions | |
| Champions | Keio BRB |
| Runner-up | Waseda University |
| Semifinalists | |
Statistics of Emperor's Cup in the 1940 season.