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| Name | Start time |
|---|---|
| The 24th Japanese Olympiad in Informatics Spring Training (JOIST 2024/2025) Day 2 | 2025-10-28 11:49:22 |
| Central European Olympiad in Informatics 2020 Day 2 (CEOI 2020 Day 2) | 2025-09-22 18:33:11 |
| Central European Olympiad in Informatics 2020 Day 1 (CEOI 2020 Day 1) | 2025-09-19 13:17:20 |
| Central European Olympiad in Informatics 2025 Day 2 (CEOI 2025 Day 2) | 2025-09-18 15:01:17 |
| Central European Olympiad in Informatics 2025 Day 1 (CEOI 2025 Day 1) | 2025-09-17 11:50:27 |
| Central European Olympiad in Informatics 2022 Day 2 (CEOI 2022 Day 2) | 2025-09-16 13:20:01 |
| Central European Olympiad in Informatics 2022 Day 1 (CEOI 2022 Day 1) | 2025-09-12 15:54:21 |
| Central European Olympiad in Informatics 2021 Day 1 (CEOI 2021 Day 1) | 2025-09-11 14:51:05 |
| Balkan Olympiad in Informatics 2023 Day 2 | 2025-09-10 13:24:13 |
| Balkan Olympiad in Informatics 2023 Day 1 | 2025-09-09 12:16:34 |
| Baltic Olympiad in Informatics 2025 Day 2 | 2025-07-07 10:35:16 |
| Baltic Olympiad in Informatics 2025 Day 1 | 2025-07-06 10:33:24 |