| Date | Contest |
|---|---|
| 2021-04-24 21:00:00 +0900 | AtCoder Beginner Contest 199（Sponsored by Panasonic） |
| 2021-03-27 21:00:00 +0900 | AtCoder Beginner Contest 197（Sponsored by Panasonic） |
| 2021-03-13 21:00:00 +0900 | Panasonic Programming Contest (AtCoder Beginner Contest 195) |
| 2020-12-19 21:00:00 +0900 | Panasonic Programming Contest (AtCoder Beginner Contest 186) |
| 2020-03-14 21:00:00 +0900 | Panasonic Programming Contest 2020 |