observer's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 075 | 791 | 582 | 31 | - | ||
| AtCoder Beginner Contest 106 | 1722 | 238 | 61 | +30 | ||
| AtCoder Beginner Contest 107 | 1427 | 104 | 66 | +5 | ||
| AtCoder Beginner Contest 111 | 458 | 965 | 174 | +108 |