OBlack's Competition History
| Date | Contest | Rank | Performance | New Rating | Diff | |
|---|---|---|---|---|---|---|
| AtCoder Regular Contest 078 | 463 | 1555 |  357 |
- | ||
| AtCoder Regular Contest 079 | 626 | 1253 |  661 |
+304 | ||
| AtCoder Regular Contest 080 | 614 | 1223 |  797 |
+136 | ||
| AtCoder Regular Contest 102 | 245 | 1882 |  1100 |
+303 |