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Active Contests
| Start Time (local time) | Contest Name | Duration | Rated Range |
|---|---|---|---|
| ◉ THIRD Programming Contest 2026（AtCoder Heuristic Contest 061） | 240:00 | 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 Regular Contest 215 | 02:00 | 1200 - 2799 | |
| ◉ AtCoder Beginner Contest 447 | 01:40 | - 1999 | |
| ◉ The 3rd Masters Championship-qual- | 06:00 | - | |
| ◉ AtCoder Beginner Contest 448 | 01:40 | - 1999 | |
| ◉ UNIQUE VISION Programming Contest 2026 Spring (AtCoder Heuristic Contest 062) | 04:00 | All | |
| ◉ AtCoder Beginner Contest 449 | 01:40 | - 1999 |