Antumbra's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Beginner Contest 401 | 4687 | 752 |  48 |
- | ||
| AtCoder Beginner Contest 409 | 7068 | 416 | 99 |
+51 | ||
| AtCoder Beginner Contest 410 | 6800 | 414 |  140 |
+41 | ||
| AtCoder Beginner Contest 412 | 3860 | 824 |  239 |
+99 | ||
| Mirrativ Programming Contest 2025 (AtCoder Beginner Contest 414) | 4074 | 827 |  334 |
+95 | ||
| Japan Registry Services (JPRS) Programming Contest 2025#2 (AtCoder Beginner Contest 415) | 3203 | 949 |  450 |
+116 | ||
| AtCoder Beginner Contest 417 | 2062 | 1217 |  603 |
+153 |