Ichidayo's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| Panasonic Programming Contest 2025（AtCoder Beginner Contest 427） | 8792 | - | - | - | ||
| AtCoder Beginner Contest 428 | 9095 | 62 |  3 |
- | ||
| Polaris.AI Programming Contest 2025（AtCoder Beginner Contest 429） | 9315 | 97 | 12 |
+9 | ||
| AtCoder Beginner Contest 430 | 6565 | 216 | 31 |
+19 | ||
| TOYOTA SYSTEMS Programming Contest 2025（AtCoder Beginner Contest 431) | 8458 | 112 | 41 |
+10 | ||
| AtCoder Beginner Contest 433 | 9034 | 166 | 54 |
+13 | ||
| AtCoder Beginner Contest 435 | 9416 | - | - | - | ||
| AtCoder Beginner Contest 441 (Promotion of Engineer Guild Fes) | 9909 | 55 | 53 |
-1 | ||
| JPRS Programming Contest 2026#1 (AtCoder Beginner Contest 442) | 9595 | 111 | 60 |
+7 | ||
| Denso Create Programming Contest 2026（AtCoder Beginner Contest 443） | 8446 | 198 | 73 |
+13 | ||
| AtCoder Beginner Contest 444 | 8682 | 277 | 91 |
+18 | ||
| AtCoder Beginner Contest 445 | 9025 | 113 | 93 |
+2 | ||
| AtCoder Beginner Contest 446 | 7761 | 135 | 98 |
+5 | ||
| AtCoder Beginner Contest 447 | 8884 | 53 | 91 |
-7 | ||
| Keysight Technologies Programming Contest（AtCoder Beginner Contest 454） | 10022 | 42 | 83 |
-8 |