| 28th Japanese Speech Contest | | | |
| 27th Japanese Speech Contest | | | |
| 26th Japanese Speech Contest | | | |
| 25th Japanese Speech Contest | | | |
| canceled | | | |
| 24th Japanese Speech Contest | | | |
| 23rd Japanese Speech Contest | | | |
| 22nd Japanese Speech Contest | | | |
| 21st Japanese Speech Contest | | | |
| 20th Japanese Speech Contest | | | |
| 19th Japanese Speech Contest | | | |
| 18th Japanese Speech Contest | | | |
| 17th Japanese Speech Contest | | | |
| 29th Japanese Speech Contest | | | |
