| XX International Zhautykov Olympiad on Informatics Day 1 (IZhO 2024 Day 1) | 2026-01-08 22:03:34 |
| 2025 Canadian Computing Olympiad Day 2 | 2026-01-08 01:08:09 |
| Central European Olympiad in Informatics 2025 Day 2 (CEOI 2025 Day 2) | 2026-01-07 20:32:16 |
| USACO 2024 December Contest (Platinum) | 2026-01-06 00:09:44 |
| Nordic Olympiad in Informatics 2022 | 2026-01-02 15:16:01 |
| The 24th Japanese Olympiad in Informatics Spring Training (JOIST 2024/2025) Day 1 | 2026-01-01 16:57:13 |
| Asia-Pacific Informatics Olympiad 2019 (APIO 2019) | 2026-01-01 16:16:26 |
| Asia-Pacific Informatics Olympiad 2020 (APIO 2020) | 2026-01-01 16:13:17 |
| (China) National Olympiad in Informatics 2019 Day 1 | 2025-12-31 23:35:38 |
| Nordic Olympiad in Informatics 2023 | 2025-12-31 15:07:06 |
| (Singapore) National Olympiad in Informatics 2024 Final Contest | 2025-12-30 22:40:59 |
| Baltic Olympiad in Informatics 2024 Day 1 | 2025-12-30 21:45:44 |
| Central European Olympiad in Informatics 2023 Day 1 (CEOI 2023 Day 1) | 2025-12-30 21:39:45 |
| 2025 Canadian Computing Olympiad Day 1 | 2025-12-30 21:38:50 |
| Romanian Master of Informatics 2024 Day 1 | 2025-12-30 16:59:29 |
| Nordic Olympiad in Informatics 2024 | 2025-12-30 15:02:07 |
| Nordic Olympiad in Informatics 2025 | 2025-12-29 21:46:51 |
| Central European Olympiad in Informatics 2025 Day 1 (CEOI 2025 Day 1) | 2025-12-29 17:08:55 |
| JOI Open Contest 2025 | 2025-12-29 17:02:08 |
| XXXI Olimpiada Informatyczna – III etap, Dzień pierwszy (POI 2023/2024 Stage 3, Day 1) | 2025-12-28 12:18:40 |
| (China) National Olympiad in Informatics 2021 Day 2 | 2025-12-27 12:16:03 |
| Central European Olympiad in Informatics 2024 Day 2 (CEOI 2024 Day 2) | 2025-12-26 12:19:47 |
| Central European Olympiad in Informatics 2021 Day 1 (CEOI 2021 Day 1) | 2025-12-25 12:24:40 |
| Baltic Olympiad in Informatics 2021 Day 2 | 2025-12-24 12:22:40 |
| Baltic Olympiad in Informatics 2021 Day 1 | 2025-12-23 12:15:03 |
| (Singapore) National Olympiad in Informatics 2025 Final Contest | 2025-12-22 12:19:18 |
| XXXII Olimpiada Informatyczna – III etap, Dzień drugi (POI 2024 Stage 3, Day 2) | 2025-12-21 12:11:09 |
| XXXII Olimpiada Informatyczna – III etap, Dzień pierwszy (POI 2024 Stage 3, Day 1) | 2025-12-20 12:47:55 |
| XVIII International Zhautykov Olympiad on Informatics Day 1 (IZhO 2022 Day 1) | 2025-11-14 16:48:41 |
| XVI International Zhautykov Olympiad on Informatics Day 2 (IZhO 2020 Day 2) | 2025-09-27 15:54:56 |
| XVI International Zhautykov Olympiad on Informatics Day 1 (IZhO 2020 Day 1) | 2025-09-26 17:00:12 |
| XV International Zhautykov Olympiad on Informatics Day 1 (IZhO 2019 Day 1) | 2025-09-14 13:37:02 |
| XIV International Zhautykov Olympiad on Informatics Day 1 (IZhO 2018 Day 1) | 2025-09-11 16:43:32 |
