06.02 Fri 10:00 over 03:00 COCI 2025/2026 #4 Unofficial Mirror [ioi]
luogu.com.cn
06.02 Fri 11:00 over 05:00 Подготовка к области/республике 2026
dl.gsu.by
06.02 Fri 12:00 over 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 4 | A 1 
contest.yandex.ru/CYF
06.02 Fri 12:00 over 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 4 | B
contest.yandex.ru/CYF
08.02 Sun 05:30 32 hours 48:00 BITSCTF 2026 1 
ctftime.org
08.02 Sun 13:00 39 hours 48:00 Pragyan CTF 2026
ctftime.org
08.02 Sun 18:30 45 hours 48:00 Weekend Dev Challenge 36: Spring Boot Projects
codechef.com
13.02 Fri 23:59 7 days 92 days Vesuvius Challenge - Surface Detection [history, image segmentation…, segmentation, custom metric] 8 
kaggle.com
24.02 Tue 23:59 18 days 42 days The MedGemma Impact Challenge [healthc…are, health, model comparison]
kaggle.com
28.02 Sat 23:59 22 days 27 days Predicting Heart Disease [beginner, tabular, roc auc score]
kaggle.com
23.03 Mon 23:59 45 days 97 days Deep Past Challenge - Translate Akkadian to English [history, tex…t, translation, custom metric]
kaggle.com
25.03 Wed 23:59 47 days 77 days Stanford RNA 3D Folding Part 2 [video games, biology, chemistry, biotechnolo…gy, regression, custom metric]
kaggle.com
15.04 Wed 23:59 68 days 146 days AI Mathematical Olympiad - Progress Prize 3 [nl…p, mathematics, custom metric]
kaggle.com
06.05 Wed 23:59 89 days 195 days Recod.ai/LUC - Scientific Image Forgery Detection [research, biology, m…edicine, image, custom metric]
kaggle.com
01.06 Mon 23:59 115 days 229 days CAFA 6 Protein Function Prediction [healthcare, bi…ology, tabular, custom metric]
kaggle.com
16.06 Tue 23:59 130 days 273 days Hull Tactical - Market Prediction [fi…nance, tabular, custom metric]
kaggle.com
16.02 Mon 08:00 9 days 15 days Марафон №3 по задачам В.И. Лукьянчикова
acmp.ru
16.02 Mon 20:59 10 days 25 days Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». Второй тур заочног…о отборочного этапа, 7-8 класс 3 
cups.online
16.02 Mon 20:59 10 days 25 days Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». Второй тур заочного …отборочного этапа, 9-11 класс
cups.online
07.03 Sat 15:00 29 days 30 days Technocup 2025-2026 [sport_coding]. …Пробный раунд для прокторинга
cups.online
08.10 Thu 07:00 243 days 365 days Russian Olympiad in Artificial Intellig…ence 2026 [ai]. Training round
cups.online
21.02 Sat 16:00 15 days 91 days Powerful Sums
azspcs.com
13.11 Fri 00:00 279 days 365 days Snake3D
datsteam.dev
07.02 Sat 02:00 4:32:51 48:00 LA CTF 2026 50 
ctftime.org
07.02 Sat 08:30 11 hours 24:00 Nullcon Goa HackIM 2026 CTF
ctftime.org
07.02 Sat 09:00 11 hours 24:00 DUCKERZ CTF 2026
ctftime.org
07.02 Sat 11:00 13 hours 24:00 EncipherX CTF 4.0
ctftime.org
12.02 Thu 18:00 6 days 48:00 0xFUN CTF 2026
ctftime.org
14.02 Sat 07:30 7 days 24:00 Breach Point CTF - Siege Of Troy(Online Round)
ctftime.org
14.02 Sat 10:00 8 days 24:00 TaipanByte’s Chart CTF
ctftime.org
20.02 Fri 18:30 14 days 48:00 Batman's Kitchen CTF 2026
ctftime.org
21.02 Sat 00:00 14 days 36:59 THJCC CTF 2026
ctftime.org
21.02 Sat 04:30 14 days 10:00 Escathon CTF 2026 Finals
ctftime.org
21.02 Sat 09:00 14 days 08:00 EPIHACK CTF: L'arène numérique
ctftime.org
27.02 Fri 08:00 20 days 24:00 UniVsThreats 26 Quals CTF
ctftime.org
28.02 Sat 01:00 21 days 32:00 SECCON CTF 14 Domestic Finals
ctftime.org
28.02 Sat 01:00 21 days 32:00 SECCON CTF 14 International Finals
ctftime.org
28.02 Sat 18:00 22 days 00:00 Srdnlen CTF 2026 Quals
ctftime.org
07.03 Sat 09:00 28 days 48:00 upCTF 2026
ctftime.org
07.03 Sat 14:00 29 days 29:00 @Hack 2026
ctftime.org
07.03 Sat 14:00 29 days 05:00 CodeVinci Beginner CTF 2026
ctftime.org
07.03 Sat 17:00 29 days 24:00 DiceCTF 2026 Quals
ctftime.org
13.03 Fri 20:00 35 days 48:00 Midnight Flag CTF - EXECUTION
ctftime.org
13.03 Fri 23:00 35 days 48:00 WolvCTF 2026
ctftime.org
14.03 Sat 05:00 35 days 24:00 tkbctf5
ctftime.org
20.03 Fri 19:00 42 days 48:00 Curiosity CTF 2026
ctftime.org
20.03 Fri 22:00 42 days 48:00 TAMUctf 2026
ctftime.org
21.03 Sat 10:00 43 days 07:00 ZeroDays CTF 2026
ctftime.org
21.03 Sat 11:00 43 days 08:00 Undutmaning 2026
ctftime.org
27.03 Fri 17:00 49 days 48:00 KalmarCTF 2026
ctftime.org
27.03 Fri 18:00 49 days 24:00 HackDay 2026 - Finals
ctftime.org
28.03 Sat 09:00 49 days 10:00 Flag Wars
ctftime.org
28.03 Sat 13:00 50 days 24:00 VolgaCTF 2026 Qualifier
ctftime.org
29.03 Sun 12:00 51 days 09:00 GLOBAL CYBER GAMES: Women's Attac…k and Defense Edition @Wicked6
ctftime.org
04.04 Sat 12:00 57 days 16:00 SillyCTF 2
ctftime.org
07.04 Tue 00:00 59 days 15:00 Dreamhack Invitational 2026
ctftime.org
10.04 Fri 22:00 63 days 48:00 UMassCTF 2026
ctftime.org
11.04 Sat 10:00 64 days 24:00 Midnight Sun CTF 2026 Quals
ctftime.org
17.04 Fri 11:00 70 days 48:00 CPCTF 2026
ctftime.org
17.04 Fri 17:00 70 days 36:00 BlueHens CTF 2025
ctftime.org
24.04 Fri 22:00 77 days 48:00 UMDCTF 2026
ctftime.org
08.05 Fri 10:00 91 days 55:00 PHONIX VIPER NOVA CTF#2
ctftime.org
23.05 Sat 12:00 106 days 24:00 SAS CTF 2026 Quals
ctftime.org
05.06 Fri 10:00 119 days 36:00 GPN CTF 2026
ctftime.org
07.06 Sun 10:00 121 days 24:00 SSMCTF 2026 Qualifiers
ctftime.org
13.06 Sat 14:00 127 days 24:00 Crypto CTF 2026
ctftime.org
10.07 Fri 18:00 154 days 48:00 L3akCTF 2026
ctftime.org
17.07 Fri 15:00 161 days 48:00 OmniCTF 2026 Quals
ctftime.org
08.08 Sat 00:00 182 days 48:00 scriptCTF 2026
ctftime.org
21.08 Fri 12:00 196 days 48:00 BrunnerCTF 2026
ctftime.org
29.08 Sat 14:00 204 days 24:00 ASIS CTF Quals 2026
ctftime.org
04.09 Fri 16:00 210 days 48:00 NNS CTF 2026
ctftime.org
14.11 Sat 09:00 280 days 36:00 Platypwn 2026
ctftime.org
27.12 Sun 14:00 324 days 24:00 ASIS CTF Finals 2026
ctftime.org
07.02 Sat 05:00 7 hours 05:00 The 4th Universal Cup. Stage 15: China 1 
ucup.ac
14.02 Sat 05:00 7 days 05:00 The 4th Universal Cup. Stage 16: Warsaw
ucup.ac
07.02 Sat 06:00 8 hours 04:00 2026牛客寒假算法基础集训营3 [ACM] 7 
ac.nowcoder.com
08.02 Sun 11:00 37 hours 02:00 牛客周赛 Round 130 [IOI]
ac.nowcoder.com
09.02 Mon 06:00 56 hours 04:00 2026牛客寒假算法基础集训营4 [ACM]
ac.nowcoder.com
11.02 Wed 06:00 4 days 04:00 2026牛客寒假算法基础集训营5 [ACM]
ac.nowcoder.com
13.02 Fri 06:00 6 days 04:00 2026牛客寒假算法基础集训营6 [ACM]
ac.nowcoder.com
14.02 Sat 11:00 8 days 02:00 牛客2026年情人节比赛 [ACM]
ac.nowcoder.com
15.02 Sun 11:00 9 days 02:00 牛客周赛 Round 131 [IOI]
ac.nowcoder.com
16.02 Mon 15:00 10 days 02:00 牛客2026年除夕娱乐赛 [ACM]
ac.nowcoder.com
07.02 Sat 06:00 8 hours 04:00 「LCOI」Round 1 [rated, ioi] 6 
luogu.com.cn
08.02 Sun 06:00 32 hours 04:00 【LGR-266-Div.2】洛谷 2 月月赛 I &「CROI」Round 3 [rated, ioi]
luogu.com.cn
10.02 Tue 06:00 3 days 04:00 NOSOI Round 1 [ioi]
luogu.com.cn
11.02 Wed 06:00 4 days 04:00 【LGR-267-Div.2】洛谷 2 月月赛 II & UTOI Round 1 [rated, ioi]
luogu.com.cn
12.02 Thu 06:00 5 days 03:30 【LGR-264-Div.3】洛谷基础赛 #30 & YLLOI Round 3 [rated, ioi]
luogu.com.cn
14.02 Sat 00:30 7 days 03:30 NFC-OI Round 1 [ioi]
luogu.com.cn
19.02 Thu 00:00 12 days 60:00 FeSo4OI Long Round #1 春节欢乐赛 [ioi]
luogu.com.cn
07.02 Sat 09:00 11 hours 12:00 algoComp'26 Qualification Round (unrated, icpc, team)
algoleague.com
07.02 Sat 12:00 14 hours 01:40 AtCoder Beginner Contest 444 9 
atcoder.jp
08.02 Sun 12:00 38 hours 02:00 AtCoder Regular Contest 214
atcoder.jp
13.02 Fri 10:00 7 days 10 days THIRD Programming Contest 2026（…AtCoder Heuristic Contest 061）
atcoder.jp
14.02 Sat 04:00 7 days 05:00 UTPC 2025
atcoder.jp?lang=ja
14.02 Sat 12:00 8 days 01:40 AtCoder Beginner Contest 445
atcoder.jp
15.02 Sun 04:00 8 days 05:00 慶應義塾大学プログラミングコンテスト 2025
atcoder.jp?lang=ja
21.02 Sat 12:00 15 days 01:40 AtCoder Beginner Contest 446
atcoder.jp
22.02 Sun 12:00 16 days 02:00 AtCoder Regular Contest 215
atcoder.jp
28.02 Sat 12:00 22 days 01:40 AtCoder Beginner Contest 447
atcoder.jp
01.03 Sun 04:00 22 days 06:00 The 3rd Masters Championship-qual-
atcoder.jp
07.02 Sat 16:00 18 hours 00:00 Problem 983 6 
projecteuler.net
14.02 Sat 19:00 8 days 00:00 Problem 984
projecteuler.net
21.02 Sat 22:00 15 days 00:00 Problem 985
projecteuler.net
01.03 Sun 01:00 22 days 00:00 Problem 986
projecteuler.net
08.03 Sun 04:00 29 days 00:00 Problem 987
projecteuler.net
15.03 Sun 07:00 36 days 00:00 Problem 988
projecteuler.net
22.03 Sun 10:00 44 days 00:00 Problem 989
projecteuler.net
08.02 Sun 02:30 29 hours 01:30 Weekly Contest 488 2 
leetcode.com
14.02 Sat 14:30 8 days 01:30 Biweekly Contest 176
leetcode.com
15.02 Sun 02:30 8 days 01:30 Weekly Contest 489
leetcode.com
08.02 Sun 07:35 34 hours 03:00 Technocup 2025-2026 [sport_coding]. Second qualifying stage 4 
cups.online
25.02 Wed 06:00 18 days 4 days Хакатон VK Process Mining. Раунд 1
cups.online
13.03 Fri 06:00 34 days 05:00 Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». …Заключительный этап, 7-8 класс
cups.online
13.03 Fri 06:00 34 days 05:00 Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». З…аключительный этап, 9-11 класс
cups.online
13.03 Fri 07:00 34 days 56:00 Technocup 2025-2026 [sport_coding]. Final stage
cups.online
08.02 Sun 09:05 35 hours 02:00 Codeforces Round 1078 (Div. 2) 5 
codeforces.com
11.02 Wed 14:35 5 days 02:00 Codeforces Round 1079 (Div. 1)
codeforces.com
11.02 Wed 14:35 5 days 02:00 Codeforces Round 1079 (Div. 2)
codeforces.com
15.02 Sun 14:35 9 days 02:15 Codeforces Round (Div. 3)
codeforces.com
21.02 Sat 14:30 15 days 9 days Kotlin Heroes: Practice 14
codeforces.com
02.03 Mon 14:35 24 days 02:30 Kotlin Heroes: Episode 14
codeforces.com
08.02 Sun 11:30 38 hours 01:30 Blitz Round #12 1 
basecamp.eolymp.com
08.02 Sun 20:00 46 hours 6 days Educational Round #8
basecamp.eolymp.com
08.02 Sun 13:00 39 hours 04:00 RoAlgo Cup 1
kilonova.ro
08.02 Sun 14:15 40 hours 02:15 TLX Regular Open Contest #43 (based on Arkavidia 10.0)
tlx.toki.id
08.02 Sun 14:35 41 hours 03:00 Repovive Premier Round 1
repovive.com
09.02 Mon 05:00 55 hours 83 days ICRA 2026 Sim2Real Soccer Challenge
competesai.com
09.02 Mon 06:00 56 hours 05:00 Подготовка к области/республике 2026 3 
dl.gsu.by
10.02 Tue 06:00 3 days 05:00 Подготовка к области/республике 2026
dl.gsu.by
12.02 Thu 06:00 5 days 05:00 Подготовка к области/республике 2026
dl.gsu.by
13.02 Fri 06:00 6 days 05:00 Подготовка к области/республике 2026
dl.gsu.by
11.02 Wed 14:30 5 days 02:00 Starters 225 2 
codechef.com
18.02 Wed 14:30 12 days 02:00 Starters 226
codechef.com
25.02 Wed 14:30 19 days 02:00 Starters 227
codechef.com
11.02 Wed 14:30 5 days 01:30 Тренировки первой подзадачи 2026. День 4
contest.yandex.ru/CYF
12.02 Thu 15:01 6 days 02:00 Weekly Contest 217 1 
naukri.com/code360
18.02 Wed 15:30 12 days 01:30 Beginner Contest 106
naukri.com/code360
13.02 Fri 14:30 7 days 02:00 RoboContest Round #109
robocontest.uz
15.02 Sun 10:00 9 days 05:00 Интернет-олимпиада 2 
nerc.itmo.ru/school
28.02 Sat 12:00 22 days 05:00 Интернет-олимпиада
nerc.itmo.ru/school
14.03 Sat 12:00 36 days 05:00 Интернет-олимпиада
nerc.itmo.ru/school
20.02 Fri 12:00 14 days 04:00 Third Contest 1 
usaco.org
12.05 Tue 12:00 95 days 04:00 EGOI (Italy)
usaco.org
21.02 Sat 14:00 15 days 03:00 CONTEST #5 2 
hsin.hr/coci
21.03 Sat 14:00 43 days 03:00 CONTEST #6
hsin.hr/coci
10.05 Sun 14:00 93 days 03:00 CROATIAN OLYMPIAD IN INFORMATICS
hsin.hr/coci
26.02 Thu 14:30 20 days 00:40 Tough Dash, February 2026
toph.co
04.03 Wed 21:00 26 days 48:00 Заключительный этап. XX Открытая …олимпиада по программированию
inf-open.ru
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