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| Name | Start time |
|---|---|
| International Olympiad in Informatics 2019 Day 2 | 2025-07-26 08:04:58 |
| The 24th Japanese Olympiad in Informatics Spring Training (JOIST 2024/2025) Day 4 | 2025-06-20 02:04:24 |
| The 23rd Japanese Olympiad in Informatics Spring Training (JOIST 2023/2024) Day 2 | 2025-06-09 01:58:51 |
| Nordic Olympiad in Informatics 2024 | 2025-05-04 20:06:05 |
| Nordic Olympiad in Informatics 2025 | 2025-04-22 19:01:51 |
| Central European Olympiad in Informatics 2021 Day 1 (CEOI 2021 Day 1) | 2025-04-20 01:26:09 |
| JOI Open Contest 2022 | 2025-04-13 23:37:57 |
| Central European Olympiad in Informatics 2023 Day 1 (CEOI 2023 Day 1) | 2025-04-10 21:55:36 |