16.03 Mon 08:00 over 01:00 AtCoder Daily Training ALL 2026/03/16 16:00start 4 
atcoder.jp?lang=ja
16.03 Mon 08:00 over 01:00 AtCoder Daily Training EASY 2026/03/16 16:00start
atcoder.jp?lang=ja
16.03 Mon 10:00 over 01:00 AtCoder Daily Training ALL 2026/03/16 18:00start
atcoder.jp?lang=ja
16.03 Mon 10:00 over 01:00 AtCoder Daily Training EASY 2026/03/16 18:00start
atcoder.jp?lang=ja
16.03 Mon 12:00 over 01:00 AtCoder Weekday Contest 0026 Beta
atcoder.jp
16.03 Mon 12:00 over 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 9 | A 1 
contest.yandex.ru/CYF
16.03 Mon 12:00 over 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 9 | B
contest.yandex.ru/CYF
16.03 Mon 15:30 over 03:00 Monday Munch - DSA Challenge 29
codechef.com
16.03 Mon 16:50 over 02:15 Educational Codeforces Round 188 (Rated for Div. 2)
codeforces.com
17.03 Tue 01:00 6 hours 24:00 Final Round 1 
gameaicup.com
22.03 Sun 23:00 6 days 30 days Sandbox
gameaicup.com
17.03 Tue 10:00 15 hours 30:00 Lag N Crash 6.0
ctftime.org
18.03 Wed 20:59 50 hours 28 days Обработка больших данных. Разработка …контейнера для работы с Hadoop 3 
cups.online
25.03 Wed 20:59 9 days 35 days Обработка больших данных. Разработка к…онтейнера со Spark-приложением
cups.online
30.03 Mon 20:59 14 days 40 days Обработка больших данных. Работа со Spark
cups.online
08.10 Thu 07:00 206 days 365 days Russian Olympiad in Artificial Intellig…ence 2026 [ai]. Training round
cups.online
19.03 Thu 16:00 3 days 27 days March Machine Learning Mania 2026 [basketball, sports, mse] 9 
kaggle.com
20.03 Fri 07:00 4 days 17 days adsfuhsdlfuh [china , animals, doParallel]
kaggle.com
23.03 Mon 23:59 7 days 97 days Deep Past Challenge - Translate Akkadian to English [history, tex…t, translation, custom metric]
kaggle.com
25.03 Wed 23:59 9 days 77 days Stanford RNA 3D Folding Part 2 [video games, biology, chemistry, biotechnolo…gy, regression, custom metric]
kaggle.com
31.03 Tue 23:59 15 days 31 days Predict Customer Churn [beginner, tabular, roc auc score]
kaggle.com
15.04 Wed 23:59 30 days 146 days AI Mathematical Olympiad - Progress Prize 3 [nl…p, mathematics, custom metric]
kaggle.com
06.05 Wed 23:59 51 days 195 days Recod.ai/LUC - Scientific Image Forgery Detection [research, biology, m…edicine, image, custom metric]
kaggle.com
01.06 Mon 23:59 77 days 229 days CAFA 6 Protein Function Prediction [healthcare, bi…ology, tabular, custom metric]
kaggle.com
03.06 Wed 23:59 79 days 84 days BirdCLEF+ 2026 [earth and nature, animals, multilabel classification, audio event …classification, custom metric]
kaggle.com
16.06 Tue 23:59 92 days 273 days Hull Tactical - Market Prediction [fi…nance, tabular, custom metric]
kaggle.com
22.03 Sun 19:59 6 days 6 days Educational Round #9
basecamp.eolymp.com
24.03 Tue 09:00 8 days 14 days Winter Challenge 2026
codingame.com
01.04 Wed 03:59 15 days 03:00 2026 Canadian Computing Competition Junior Division Mirror 3 
dmoj.ca
01.04 Wed 03:59 15 days 03:00 2026 Canadian Computing Competition Senior Division Mirror
dmoj.ca
01.04 Wed 03:59 15 days 02:00 2026 Canadian Informatics Workshop - Day 1 Mirror
dmoj.ca
01.04 Wed 03:59 15 days 02:00 2026 Canadian Informatics Workshop - Day 2 Mirror
dmoj.ca
04.05 Mon 04:00 48 days 60 days ICRA 2026 Sim2Real Soccer Challenge
competesai.com
13.11 Fri 00:00 241 days 365 days Snake3D
datsteam.dev
17.03 Tue 07:00 12 hours 01:00 AtCoder Daily Training ALL 2026/03/17 16:00start 15 
atcoder.jp?lang=ja
17.03 Tue 07:00 12 hours 01:00 AtCoder Daily Training EASY 2026/03/17 16:00start
atcoder.jp?lang=ja
17.03 Tue 09:00 14 hours 01:00 AtCoder Daily Training ALL 2026/03/17 18:00start
atcoder.jp?lang=ja
17.03 Tue 09:00 14 hours 01:00 AtCoder Daily Training EASY 2026/03/17 18:00start
atcoder.jp?lang=ja
17.03 Tue 11:00 16 hours 01:00 AtCoder Weekday Contest 0027 Beta
atcoder.jp
21.03 Sat 12:00 5 days 01:40 AtCoder Beginner Contest 450
atcoder.jp
22.03 Sun 12:00 6 days 02:30 AtCoder Regular Contest++ 216
atcoder.jp
26.03 Thu 05:00 9 days 02:30 パ研合宿2025 第1日「SpeedRun」
atcoder.jp?lang=ja
27.03 Fri 05:30 10 days 04:30 パ研合宿2025 第2日「パ研杯」
atcoder.jp?lang=ja
28.03 Sat 05:00 11 days 05:00 パ研合宿2025 第3日「Teamwork」
atcoder.jp?lang=ja
28.03 Sat 12:00 12 days 01:40 AtCoder Beginner Contest 451
atcoder.jp
29.03 Sun 12:00 13 days 03:00 AtCoder Grand Contest 077
atcoder.jp
03.04 Fri 10:00 18 days 10 days AtCoder Heuristic Contest 063
atcoder.jp
04.04 Sat 12:00 19 days 01:40 AtCoder Beginner Contest 452
atcoder.jp
11.04 Sat 12:00 26 days 01:40 AtCoder Beginner Contest 453
atcoder.jp
25.04 Sat 12:00 40 days 01:40 Ｓｋｙ Inc, Programming Contest 2026 …(AtCoder Beginner Contest 455)
atcoder.jp
17.03 Tue 07:00 12 hours 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 10 | A 1 
contest.yandex.ru/CYF
17.03 Tue 07:00 12 hours 05:00 Сборы перед BelOI 2026, февраль - март 2026. День 10 | B
contest.yandex.ru/CYF
18.03 Wed 05:00 34 hours 09:00 CyberCup Indian Ocean 2026 – Team Edition | Step2 77 
ctftime.org
19.03 Thu 16:00 3 days 24:00 m0leCon CTF 2026
ctftime.org
20.03 Fri 17:00 4 days 11:00 Insomni'hack 2026
ctftime.org
20.03 Fri 19:00 4 days 48:00 Curiosity CTF 2026
ctftime.org
20.03 Fri 22:00 4 days 48:00 TAMUctf 2026
ctftime.org
20.03 Fri 23:00 4 days 48:00 BSidesSF CTF 2026
ctftime.org
21.03 Sat 10:00 5 days 07:00 ZeroDays CTF 2026
ctftime.org
21.03 Sat 11:00 5 days 08:00 Undutmaning 2026
ctftime.org
21.03 Sat 12:30 5 days 24:00 Redfox CTF 2026
ctftime.org
26.03 Thu 07:30 10 days 24:00 Stranger's CTF - Techtrix '26
ctftime.org
27.03 Fri 12:00 11 days 48:00 TexSAW 2026
ctftime.org
27.03 Fri 17:00 11 days 48:00 KalmarCTF 2026
ctftime.org
27.03 Fri 18:00 11 days 24:00 HackDay 2026 - Finals
ctftime.org
28.03 Sat 00:00 11 days 15:00 Codegate CTF 2026 Preliminary
ctftime.org
28.03 Sat 05:00 11 days 24:00 NovruzCTF 2026
ctftime.org
28.03 Sat 09:00 12 days 10:00 Flag Wars
ctftime.org
28.03 Sat 09:00 12 days 24:00 KAALCHAKRA CTF
ctftime.org
28.03 Sat 13:00 12 days 24:00 VolgaCTF 2026 Qualifier
ctftime.org
29.03 Sun 07:00 13 days 08:00 CU school CTF 2026
ctftime.org
29.03 Sun 12:00 13 days 09:00 GLOBAL CYBER GAMES: Women's Attac…k and Defense Edition @Wicked6
ctftime.org
31.03 Tue 00:00 14 days 47:59 Hack for a Change 2026 March: UN SDG 3
ctftime.org
03.04 Fri 09:30 18 days 48:00 VishwaCTF'2026
ctftime.org
03.04 Fri 12:00 18 days 24:00 Kashi CTF 2026
ctftime.org
03.04 Fri 21:00 18 days 48:00 RITSEC CTF 2026
ctftime.org
03.04 Fri 22:00 18 days 24:00 CITEFLAG QUALS 2026
ctftime.org
04.04 Sat 02:30 18 days 24:00 Breach CTF 2026
ctftime.org
04.04 Sat 12:00 19 days 16:00 SillyCTF 2
ctftime.org
06.04 Mon 04:30 20 days 24:00 Triada CTF '26
ctftime.org
07.04 Tue 00:00 21 days 15:00 Dreamhack Invitational 2026
ctftime.org
10.04 Fri 16:00 25 days 48:00 DawgCTF 2026
ctftime.org
10.04 Fri 22:00 25 days 48:00 UMassCTF 2026
ctftime.org
11.04 Sat 02:00 25 days 24:00 Cybersplash 2026
ctftime.org
11.04 Sat 10:00 26 days 24:00 Midnight Sun CTF 2026 Quals
ctftime.org
16.04 Thu 19:00 31 days 36:00 MCTF 5.0
ctftime.org
17.04 Fri 11:00 32 days 48:00 CPCTF 2026
ctftime.org
17.04 Fri 16:00 32 days 51:00 CTF@CIT 2026
ctftime.org
17.04 Fri 17:00 32 days 36:00 BlueHens CTF 2025
ctftime.org
17.04 Fri 21:00 32 days 48:00 SwampCTF 2026
ctftime.org
18.04 Sat 00:00 32 days 48:00 b01lers CTF 2026
ctftime.org
18.04 Sat 07:00 33 days 36:00 KubSTU CTF
ctftime.org
18.04 Sat 10:00 33 days 24:00 pingCTF 2026
ctftime.org
18.04 Sat 12:00 33 days 24:00 K!nd4SUS CTF 2026
ctftime.org
18.04 Sat 19:00 33 days 24:00 JerseyCTF VI
ctftime.org
24.04 Fri 19:00 39 days 48:00 TRX CTF 2026
ctftime.org
24.04 Fri 22:00 39 days 48:00 UMDCTF 2026
ctftime.org
25.04 Sat 07:00 40 days 24:00 CTF@AC26 - Quals
ctftime.org
07.05 Thu 11:00 52 days 24:00 THCon 2K26 CTF
ctftime.org
08.05 Fri 10:00 53 days 55:00 PHONIX VIPER NOVA CTF#2
ctftime.org
08.05 Fri 16:00 53 days 44:00 Break The Syntax CTF 2026
ctftime.org
09.05 Sat 00:00 53 days 48:00 DAMCTF 2026
ctftime.org
09.05 Sat 09:00 54 days 24:00 From Dusk Till Dawn Quals
ctftime.org
16.05 Sat 08:00 61 days 09:00 DaVinciCTF 2026
ctftime.org
22.05 Fri 16:00 67 days 48:00 TJCTF 2026
ctftime.org
23.05 Sat 12:00 68 days 24:00 SAS CTF 2026 Quals
ctftime.org
23.05 Sat 14:00 68 days 24:00 SecLeaf Q2 CTF 2026
ctftime.org
29.05 Fri 17:00 74 days 27:50 Hardwear.io USA 2026 Hardware CTF
ctftime.org
31.05 Sun 12:00 76 days 24:00 Grey Cat The Flag 2026 Qualifiers
ctftime.org
05.06 Fri 10:00 81 days 36:00 GPN CTF 2026
ctftime.org
07.06 Sun 10:00 83 days 24:00 SSMCTF 2026 Qualifiers
ctftime.org
13.06 Sat 13:00 89 days 34:00 CyberSci Nationals 2025-2026
ctftime.org
13.06 Sat 14:00 89 days 24:00 Crypto CTF 2026
ctftime.org
28.06 Sun 02:00 103 days 24:00 Grey Cat The Flag 2026 Finals
ctftime.org
04.07 Sat 00:00 109 days 48:00 No Hack No CTF 2026
ctftime.org
04.07 Sat 02:00 109 days 48:00 R3CTF 2026
ctftime.org
10.07 Fri 18:00 116 days 48:00 L3akCTF 2026
ctftime.org
17.07 Fri 15:00 123 days 48:00 OmniCTF 2026 Quals
ctftime.org
17.07 Fri 19:30 123 days 48:00 DownUnderCTF 2026
ctftime.org
25.07 Sat 00:00 130 days 48:00 UIUCTF 2026
ctftime.org
25.07 Sat 12:00 131 days 24:00 D^3CTF 2026
ctftime.org
08.08 Sat 00:00 144 days 48:00 scriptCTF 2026
ctftime.org
14.08 Fri 12:00 151 days 72:00 gaslightCTF 2026
ctftime.org
21.08 Fri 12:00 158 days 48:00 BrunnerCTF 2026
ctftime.org
22.08 Sat 00:00 158 days 48:00 SekaiCTF 2026
ctftime.org
29.08 Sat 14:00 166 days 24:00 ASIS CTF Quals 2026
ctftime.org
04.09 Fri 16:00 172 days 48:00 NNS CTF 2026
ctftime.org
11.09 Fri 10:00 179 days 48:00 K17 CTF 2026
ctftime.org
14.11 Sat 09:00 243 days 36:00 Platypwn 2026
ctftime.org
27.12 Sun 14:00 286 days 24:00 ASIS CTF Finals 2026
ctftime.org
18.03 Wed 14:30 44 hours 02:00 Starters 230 5 
codechef.com
25.03 Wed 14:30 9 days 02:00 Starters 231
codechef.com
01.04 Wed 14:30 16 days 02:00 Starters 232
codechef.com
08.04 Wed 14:30 23 days 02:00 Starters 233
codechef.com
15.04 Wed 14:30 30 days 02:00 Starters 234
codechef.com
22.04 Wed 14:30 37 days 02:00 Starters 235
codechef.com
18.03 Wed 15:30 45 hours 01:30 Beginner Contest 108 1 
naukri.com/code360
19.03 Thu 14:30 3 days 02:00 Weekly Contest 222
naukri.com/code360
19.03 Thu 11:00 3 days 05:00 Nordic Olympiad in Informatics 2026
noi26.kattis.com
20.03 Fri 11:00 4 days 02:00 牛客小白月赛130 [ACM] 3 
ac.nowcoder.com
22.03 Sun 11:00 6 days 02:00 牛客周赛 Round 136
ac.nowcoder.com
27.03 Fri 11:00 11 days 02:30 牛客练习赛150 [ACM]
ac.nowcoder.com
01.04 Wed 11:00 16 days 02:00 牛客2026年愚人节比赛 [ACM]
ac.nowcoder.com
21.03 Sat 06:00 4 days 04:00 【LGR-274-Div.2】洛谷 3 月月赛 II & 『LBA-OI』Round 3 [rated, ioi] 2 
luogu.com.cn
28.03 Sat 06:00 11 days 04:00 【LGR-276-Div.3】洛谷蓝桥杯省赛模拟赛 2026 [rated, oi]
luogu.com.cn
04.04 Sat 06:00 18 days 01:30 o.OI Round -1 [rated, ioi]
luogu.com.cn
21.03 Sat 14:00 5 days 03:00 CONTEST #6 1 
hsin.hr/coci
10.05 Sun 14:00 55 days 03:00 CROATIAN OLYMPIAD IN INFORMATICS
hsin.hr/coci
21.03 Sat 14:35 5 days 02:00 Codeforces Round (Div. 2) 1 
codeforces.com
28.03 Sat 14:35 12 days 02:00 Codeforces Round (Div. 2)
codeforces.com
22.03 Sun 02:30 5 days 01:30 Weekly Contest 494 1 
leetcode.com
28.03 Sat 14:30 12 days 01:30 Biweekly Contest 179
leetcode.com
22.03 Sun 10:00 6 days 00:00 Problem 989
projecteuler.net
22.03 Sun 11:00 6 days 01:30 Blitz Round #16
basecamp.eolymp.com
05.04 Sun 14:30 20 days 02:30 M(IT)^2 2026 Spring Invitational Qualification Round 2
mitit.org
11.04 Sat 17:00 26 days 05:00 Rutgers University Programming Contest Spring 20…26 - Open Division. MattTheNub
codeforces.com/gyms
25.04 Sat 18:30 40 days 06:00 Spring 2026 Virtual Programming Contest
teamscode.org
12.05 Tue 12:00 57 days 04:00 EGOI (Italy)
usaco.org
01.01 Fri 00:00 290 days 23:59 Amazon Round 1 
repovive.com
01.01 Fri 00:00 290 days 23:59 Meta Round
repovive.com
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