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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 407 | 01:40 | - 1999 | |
| ◉ AtCoder Regular Contest 198 (Div. 2) | 02:00 | 1200 - 2399 | |
| ◉ MC Digital Programming Contest 2025 (AtCoder Heuristic Contest 048) | 240:00 | All | |
| ◉ AtCoder Regular Contest 199 (Div. 1) | 02:30 | 1600 - 2999 | |
| ◉ AtCoder Beginner Contest 410 | 01:40 | - 1999 | |
| ◉ AtCoder Regular Contest 201 | 02:00 | 1200 - 2799 | |
| ◉ AtCoder Beginner Contest 412 | 01:40 | - 1999 | |
| ◉ Denso Create Programming Contest 2025（AtCoder Beginner Contest 413） | 01:40 | - 1999 | |
| ◉ World Tour Finals 2025 Algorithm | 05:00 | - | |
| ◉ World Tour Finals 2025 Algorithm（Open Contest） | 05:00 | - |