Penumbra's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 446 | 1715 | 1315 |  196 |
- | ||
| AtCoder Beginner Contest 447 | 1276 | 1492 |  666 |
+470 | ||
| AtCoder Beginner Contest 448 | 1092 | 1548 |  919 |
+253 |