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Ongoing Contests
| Start Time (local time) | Contest Name | Duration | Rated Range |
|---|---|---|---|
| ◉ AtCoder Heuristic Contest 066 | 239:00 | All |
Permanent Contests
| Contest Name | Rated Range |
|---|---|
| ◉ practice contest | - |
| ◉ AtCoder Library Practice Contest | - |
Upcoming Contests
| Start Time (local time) | Contest Name | Duration | Rated Range |
|---|---|---|---|
| ◉ AtCoder Beginner Contest 461 | 01:40 | - 1999 | |
| ◉ CodeQUEEN 2026 -qual- (AtCoder Beginner Contest 462) | 01:40 | - 1999 | |
| ◉ AtCoder Regular Contest 222 | 02:00 | 1200 - 2799 | |
| ◉ AtCoder Beginner Contest 463 | 01:40 | - 1999 | |
| ◉ AtCoder Heuristic Contest 067 | 04:00 | All | |
| ◉ 第七回日本最強プログラマー学生選手権～Advance～ -予選- （AtCoder Beginner Contest 464） | 01:40 | - 1999 | |
| ◉ AtCoder Beginner Contest 465 | 01:40 | - 1999 |
Daily Contests
| Start Time (local time) | Contest Name | Duration | Rated Range |
|---|---|---|---|
| ◉ AtCoder Weekday Contest 0085 Beta | 01:00 | - |