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| Name | Start time |
|---|---|
| IOI 2025 Training Series #1 | 2025-07-24 21:37:37 |
| International Olympiad in Informatics 2015 Day 1 | 2025-07-09 12:04:32 |
| Asia-Pacific Informatics Olympiad 2022 (APIO 2022) | 2025-05-06 15:20:13 |
| Asia-Pacific Informatics Olympiad 2023 (APIO 2023) | 2025-04-24 20:07:36 |
| (China) National Olympiad in Informatics 2023 Day 2 | 2025-03-25 00:06:32 |
| (China) National Olympiad in Informatics 2023 Day 1 | 2025-03-24 17:05:13 |
| Central European Olympiad in Informatics 2024 Day 1 (CEOI 2024 Day 1) | 2025-03-23 18:27:56 |
| (China) National Olympiad in Informatics 2024 Day 1 | 2025-03-15 15:34:42 |