26.03 Thu 17:01 over 02:00 Weekly Contest 223
naukri.com/code360
27.03 Fri 08:00 over 01:00 AtCoder Daily Training ALL 2026/03/27 16:00start 4 
atcoder.jp?lang=ja
27.03 Fri 08:00 over 01:00 AtCoder Daily Training EASY 2026/03/27 16:00start
atcoder.jp?lang=ja
27.03 Fri 10:00 over 01:00 AtCoder Daily Training ALL 2026/03/27 18:00start
atcoder.jp?lang=ja
27.03 Fri 10:00 over 01:00 AtCoder Daily Training EASY 2026/03/27 18:00start
atcoder.jp?lang=ja
27.03 Fri 10:00 over 04:30 パ研合宿2025 第2日「パ研杯」
atcoder.jp?lang=ja
27.03 Fri 10:00 over 03:00 Индивидуальная тренировка 27 марта 2026 года
contest.yandex.ru/CYF
27.03 Fri 12:00 0:03:38 01:00 AtCoder Weekday Contest 0035 Beta
atcoder.jp
27.03 Fri 13:00 1:03:38 02:00 【LGR-278-Div.4】洛谷入门赛 #45 [rated, ioi] 2 
luogu.com.cn
06.04 Mon 15:59 10 days 16 days AOIのApril Fools Contest 2026 [ioi]
luogu.com.cn
22.04 Wed 07:00 26 days 31 days 不是 Ahaer 出题组的 2026 愚人节比赛 [ioi]
luogu.com.cn
27.03 Fri 13:30 1:33:38 02:30 牛客练习赛150 [ACM]
ac.nowcoder.com
27.03 Fri 17:00 5:03:38 14 days Entrenamiento OIE Nivel Experto - Semana 12. FelixMP
codeforces.com/gyms
27.03 Fri 21:00 9 hours 6 days Nordic Olympiad in Informatics 2026 upsolving
noi26.kattis.com
27.03 Fri 22:59 11 hours 35:59 Potyczki Algorytmiczne 2026. Runda 4 1 
potyczki.mimuw.edu.pl
29.03 Sun 21:59 58 hours 58:59 Potyczki Algorytmiczne 2026. Runda 5
potyczki.mimuw.edu.pl
29.03 Sun 16:00 52 hours 3 days Repeat Contest (Contest-1 and Contest-2) …[protected, icpc, individual]
lightoj.com
30.03 Mon 20:59 3 days 40 days Обработка больших данных. Работа со Spark 1 
cups.online
08.10 Thu 07:00 195 days 365 days Russian Olympiad in Artificial Intellig…ence 2026 [ai]. Training round
cups.online
31.03 Tue 23:59 5 days 31 days Predict Customer Churn [beginner, tabular, roc auc score] 12 
kaggle.com
07.04 Tue 16:00 11 days 46 days March Machine Learning Mania 2026 [basketball, sports, mse]
kaggle.com
15.04 Wed 23:59 20 days 146 days AI Mathematical Olympiad - Progress Prize 3 [nl…p, mathematics, custom metric]
kaggle.com
16.04 Thu 23:59 21 days 30 days Measuring Progress Toward AGI - Cognitive Abilities [research, …benchmark, personal benchmark]
kaggle.com
06.05 Wed 23:59 41 days 195 days Recod.ai/LUC - Scientific Image Forgery Detection [research, biology, m…edicine, image, custom metric]
kaggle.com
01.06 Mon 23:59 67 days 229 days CAFA 6 Protein Function Prediction [healthcare, bi…ology, tabular, custom metric]
kaggle.com
03.06 Wed 23:59 69 days 84 days BirdCLEF+ 2026 [earth and nature, animals, multilabel classification, audio event …classification, custom metric]
kaggle.com
15.06 Mon 23:59 81 days 91 days NVIDIA Nemotron Model Reasoning Challenge [deep learning, pre-trained model, general knowledge …and reasoning, custom metric]
kaggle.com
16.06 Tue 23:59 82 days 273 days Hull Tactical - Market Prediction [fi…nance, tabular, custom metric]
kaggle.com
23.06 Tue 23:59 89 days 96 days Leonardo - Airborne Object Recognition Challenge [image, video, ob…ject detection, custom metric]
kaggle.com
02.11 Mon 23:59 221 days 222 days ARC Prize 2026 - ARC-AGI-2 [artificia…l intelligence, custom metric]
kaggle.com
02.11 Mon 23:59 221 days 222 days ARC Prize 2026 - ARC-AGI-3 [artificial intelligence, general knowledge …and reasoning, custom metric]
kaggle.com
09.11 Mon 23:59 228 days 229 days ARC Prize 2026 - Paper Track [artificial intelligence, ge…neral knowledge and reasoning]
kaggle.com
01.04 Wed 03:59 5 days 03:00 2026 Canadian Computing Competition Junior Division Mirror 3 
dmoj.ca
01.04 Wed 03:59 5 days 03:00 2026 Canadian Computing Competition Senior Division Mirror
dmoj.ca
01.04 Wed 03:59 5 days 02:00 2026 Canadian Informatics Workshop - Day 1 Mirror
dmoj.ca
01.04 Wed 03:59 5 days 02:00 2026 Canadian Informatics Workshop - Day 2 Mirror
dmoj.ca
04.05 Mon 04:00 38 days 60 days ICRA 2026 Sim2Real Soccer Challenge
competesai.com
13.11 Fri 00:00 231 days 365 days Snake3D
datsteam.dev
27.03 Fri 12:00 0:03:38 48:00 TexSAW 2026 73 
ctftime.org
27.03 Fri 17:00 5:03:38 48:00 KalmarCTF 2026
ctftime.org
27.03 Fri 18:00 6 hours 24:00 HackDay 2026 - Finals
ctftime.org
28.03 Sat 00:00 12 hours 15:00 Codegate CTF 2026 Preliminary
ctftime.org
28.03 Sat 05:00 17 hours 24:00 NovruzCTF 2026
ctftime.org
28.03 Sat 09:00 21 hours 10:00 Flag Wars
ctftime.org
28.03 Sat 09:00 21 hours 24:00 KAALCHAKRA CTF
ctftime.org
28.03 Sat 13:00 25 hours 24:00 VolgaCTF 2026 Qualifier
ctftime.org
29.03 Sun 07:00 43 hours 08:00 CU school CTF 2026
ctftime.org
29.03 Sun 12:00 48 hours 09:00 GLOBAL CYBER GAMES: Women's Attac…k and Defense Edition @Wicked6
ctftime.org
31.03 Tue 00:00 4 days 47:59 Hack for a Change 2026 March: UN SDG 3
ctftime.org
03.04 Fri 09:30 7 days 48:00 VishwaCTF'2026
ctftime.org
03.04 Fri 12:00 7 days 24:00 Kashi CTF 2026
ctftime.org
03.04 Fri 21:00 7 days 48:00 RITSEC CTF 2026
ctftime.org
03.04 Fri 22:00 7 days 24:00 CITEFLAG QUALS 2026
ctftime.org
04.04 Sat 01:00 8 days 36:00 NCTF 2026
ctftime.org
04.04 Sat 02:30 8 days 24:00 Breach CTF 2026
ctftime.org
04.04 Sat 04:30 8 days 06:00 CRACK-IN 2.0
ctftime.org
04.04 Sat 12:00 8 days 16:00 SillyCTF 2
ctftime.org
06.04 Mon 04:30 10 days 24:00 Triada CTF '26
ctftime.org
07.04 Tue 00:00 11 days 15:00 Dreamhack Invitational 2026
ctftime.org
10.04 Fri 10:00 14 days 37:00 Pàlcam Cybergames 2026
ctftime.org
10.04 Fri 16:00 14 days 48:00 DawgCTF 2026
ctftime.org
10.04 Fri 22:00 14 days 48:00 UMassCTF 2026
ctftime.org
11.04 Sat 02:00 15 days 24:00 Cybersplash 2026
ctftime.org
11.04 Sat 10:00 15 days 24:00 Midnight Sun CTF 2026 Quals
ctftime.org
11.04 Sat 10:00 15 days 24:00 PUTCyberDays CTF 2026
ctftime.org
16.04 Thu 19:00 20 days 36:00 MCTF 5.0
ctftime.org
17.04 Fri 11:00 21 days 48:00 CPCTF 2026
ctftime.org
17.04 Fri 16:00 21 days 51:00 CTF@CIT 2026
ctftime.org
17.04 Fri 17:00 21 days 36:00 BlueHens CTF 2025
ctftime.org
18.04 Sat 00:00 22 days 48:00 b01lers CTF 2026
ctftime.org
18.04 Sat 07:00 22 days 36:00 KubSTU CTF
ctftime.org
18.04 Sat 10:00 22 days 24:00 pingCTF 2026
ctftime.org
18.04 Sat 12:00 22 days 24:00 K!nd4SUS CTF 2026
ctftime.org
18.04 Sat 19:00 22 days 24:00 JerseyCTF VI
ctftime.org
24.04 Fri 19:00 28 days 48:00 TRX CTF 2026
ctftime.org
24.04 Fri 22:00 28 days 48:00 UMDCTF 2026
ctftime.org
25.04 Sat 01:00 29 days 07:00 HACKTHEON SEJONG 2026 Qualifier
ctftime.org
25.04 Sat 07:00 29 days 24:00 CTF@AC26 - Quals
ctftime.org
07.05 Thu 11:00 41 days 24:00 THCon 2K26 CTF
ctftime.org
08.05 Fri 10:00 42 days 55:00 PHONIX VIPER NOVA CTF#2
ctftime.org
08.05 Fri 16:00 42 days 44:00 Break The Syntax CTF 2026
ctftime.org
09.05 Sat 00:00 43 days 48:00 DAMCTF 2026
ctftime.org
09.05 Sat 09:00 43 days 24:00 From Dusk Till Dawn Quals
ctftime.org
16.05 Sat 08:00 50 days 09:00 DaVinciCTF 2026
ctftime.org
17.05 Sun 05:00 51 days 08:00 UralCUP 2026
ctftime.org
22.05 Fri 16:00 56 days 48:00 TJCTF 2026
ctftime.org
22.05 Fri 21:00 56 days 48:00 DEF CON CTF Qualifier 2026
ctftime.org
23.05 Sat 14:00 57 days 24:00 SecLeaf Q2 CTF 2026
ctftime.org
29.05 Fri 17:00 63 days 27:50 Hardwear.io USA 2026 Hardware CTF
ctftime.org
31.05 Sun 12:00 65 days 24:00 Grey Cat The Flag 2026 Qualifiers
ctftime.org
05.06 Fri 10:00 70 days 36:00 GPN CTF 2026
ctftime.org
07.06 Sun 10:00 72 days 24:00 SSMCTF 2026 Qualifiers
ctftime.org
13.06 Sat 13:00 78 days 34:00 CyberSci Nationals 2025-2026
ctftime.org
13.06 Sat 14:00 78 days 24:00 Crypto CTF 2026
ctftime.org
28.06 Sun 02:00 93 days 24:00 Grey Cat The Flag 2026 Finals
ctftime.org
04.07 Sat 00:00 99 days 48:00 No Hack No CTF 2026
ctftime.org
04.07 Sat 02:00 99 days 48:00 R3CTF 2026
ctftime.org
10.07 Fri 18:00 105 days 48:00 L3akCTF 2026
ctftime.org
17.07 Fri 15:00 112 days 48:00 OmniCTF 2026 Quals
ctftime.org
17.07 Fri 19:30 112 days 48:00 DownUnderCTF 2026
ctftime.org
25.07 Sat 00:00 120 days 48:00 UIUCTF 2026
ctftime.org
25.07 Sat 12:00 120 days 24:00 D^3CTF 2026
ctftime.org
08.08 Sat 00:00 134 days 48:00 scriptCTF 2026
ctftime.org
14.08 Fri 12:00 140 days 72:00 gaslightCTF 2026
ctftime.org
21.08 Fri 12:00 147 days 48:00 BrunnerCTF 2026
ctftime.org
22.08 Sat 00:00 148 days 48:00 SekaiCTF 2026
ctftime.org
29.08 Sat 14:00 155 days 24:00 ASIS CTF Quals 2026
ctftime.org
04.09 Fri 16:00 161 days 48:00 NNS CTF 2026
ctftime.org
11.09 Fri 10:00 168 days 48:00 K17 CTF 2026
ctftime.org
23.10 Fri 18:00 210 days 48:00 Hack.lu CTF 2026
ctftime.org
14.11 Sat 09:00 232 days 36:00 Platypwn 2026
ctftime.org
27.12 Sun 14:00 275 days 24:00 ASIS CTF Finals 2026
ctftime.org
27.03 Fri 18:30 6 hours 48:00 Weekend Dev Challenge 43: DevOps 6 
codechef.com
30.03 Mon 12:30 3 days 03:00 Monday Munch - DSA Challenge 31
codechef.com
01.04 Wed 14:30 5 days 02:00 Starters 232
codechef.com
08.04 Wed 14:30 12 days 02:00 Starters 233
codechef.com
15.04 Wed 14:30 19 days 02:00 Starters 234
codechef.com
22.04 Wed 14:30 26 days 02:00 Starters 235
codechef.com
29.04 Wed 14:30 33 days 02:00 Starters 236
codechef.com
28.03 Sat 05:00 17 hours 30:00 【LGR-(-28)】2026 年洛谷愚人节比赛 [ioi] 4 
luogu.com.cn
28.03 Sat 06:00 18 hours 04:00 【LGR-276-Div.3】洛谷蓝桥杯省赛模拟赛 2026 [rated, oi]
luogu.com.cn
29.03 Sun 06:00 42 hours 03:00 RedStone OI Round 10 [ioi]
luogu.com.cn
04.04 Sat 06:00 8 days 01:30 o.OI Round -1 [rated, ioi]
luogu.com.cn
05.04 Sun 06:00 9 days 04:00 【LGR-277-Div.2】洛谷 4 月月赛 I &『LBA-OI』Round 1 [rated, ioi]
luogu.com.cn
28.03 Sat 05:00 17 hours 05:00 パ研合宿2025 第3日「Teamwork」 11 
atcoder.jp?lang=ja
28.03 Sat 12:00 24 hours 01:40 AtCoder Beginner Contest 451
atcoder.jp
29.03 Sun 12:00 48 hours 03:00 AtCoder Grand Contest 077
atcoder.jp
03.04 Fri 10:00 7 days 10 days AtCoder Heuristic Contest 063
atcoder.jp
04.04 Sat 12:00 8 days 01:40 AtCoder Beginner Contest 452
atcoder.jp
05.04 Sun 12:00 9 days 02:00 AtCoder Regular Contest 217
atcoder.jp
11.04 Sat 12:00 15 days 01:40 AtCoder Beginner Contest 453
atcoder.jp
18.04 Sat 02:10 22 days 06:00 第三回マスターズ選手権 -決勝-
atcoder.jp?lang=ja
18.04 Sat 02:10 22 days 06:00 第三回マスターズ選手権-決勝-(オープンコンテスト)
atcoder.jp?lang=ja
18.04 Sat 12:00 22 days 01:40 Keysight Technologies Programming Contest…（AtCoder Beginner Contest 454）
atcoder.jp
25.04 Sat 12:00 29 days 01:40 Ｓｋｙ Inc, Programming Contest 2026 …(AtCoder Beginner Contest 455)
atcoder.jp
26.04 Sun 06:00 30 days 04:00 JR WEST and ALGO ARTIS Programming Contest (…AtCoder Heuristic Contest 064)
atcoder.jp
28.03 Sat 06:00 18 hours 15 days Марафон №4 по задачам В.И. Лукьянчикова
acmp.ru
28.03 Sat 13:00 25 hours 00:00 Problem 990 5 
projecteuler.net
04.04 Sat 15:00 8 days 00:00 Problem 991
projecteuler.net
11.04 Sat 18:00 15 days 00:00 Problem 992
projecteuler.net
18.04 Sat 21:00 22 days 00:00 Problem 993
projecteuler.net
26.04 Sun 00:00 30 days 00:00 Problem 994
projecteuler.net
03.05 Sun 03:00 37 days 00:00 Problem 995
projecteuler.net
28.03 Sat 14:30 26 hours 01:30 Biweekly Contest 179 3 
leetcode.com
29.03 Sun 02:30 38 hours 01:30 Weekly Contest 495
leetcode.com
05.04 Sun 02:30 9 days 01:30 Weekly Contest 496
leetcode.com
11.04 Sat 14:30 15 days 01:30 Biweekly Contest 180
leetcode.com
28.03 Sat 14:35 26 hours 02:30 Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2) 2 
codeforces.com
29.03 Sun 14:35 50 hours 02:15 Codeforces Round 1089 (Div. 2)
codeforces.com
01.04 Wed 14:35 5 days 02:00 April Fools Day Contest 2026
codeforces.com
28.03 Sat 17:00 29 hours 05:00 Calgary Collegiate Programming Contest 2026 - Division I 2 
ccpc26.kattis.com
28.03 Sat 17:00 29 hours 05:00 Calgary Collegiate Programming Contest 2026 - Division II
ccpc26.kattis.com
28.03 Sat 17:00 29 hours 05:00 Calgary Collegiate Programming Contest 2026 - Open Division
ccpc26.kattis.com
29.03 Sun 04:00 40 hours 07:00 Программирование - профессионалы (ком. 2026) 29 
dl.gsu.by
04.04 Sat 08:00 8 days 05:00 Гомельская городская олимпиада 1-4 кл - 2026
dl.gsu.by
04.04 Sat 08:00 8 days 05:00 Гомельская городская олимпиада 5-7 кл - 2026
dl.gsu.by
05.04 Sun 04:00 9 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
12.04 Sun 04:00 16 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
19.04 Sun 04:00 23 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
19.04 Sun 07:00 23 days 04:00 Заключительный очный тур (19.04.2026)
dl.gsu.by
23.04 Thu 08:00 27 days 05:00 Гомельская областная олимпиада 1-4 кл - 2026
dl.gsu.by
23.04 Thu 08:00 27 days 05:00 Гомельская областная олимпиада 5-7 кл - 2026
dl.gsu.by
26.04 Sun 04:00 30 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
03.05 Sun 04:00 37 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
10.05 Sun 04:00 44 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
17.05 Sun 04:00 51 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
24.05 Sun 04:00 58 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
31.05 Sun 04:00 65 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
07.06 Sun 04:00 72 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
14.06 Sun 04:00 79 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
21.06 Sun 04:00 86 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
28.06 Sun 04:00 93 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
05.07 Sun 04:00 100 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
12.07 Sun 04:00 107 days 07:00 Программирование - профессионалы (ком. 2026)
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19.07 Sun 04:00 114 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
26.07 Sun 04:00 121 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
02.08 Sun 04:00 128 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
09.08 Sun 04:00 135 days 07:00 Программирование - профессионалы (ком. 2026)
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16.08 Sun 04:00 142 days 07:00 Программирование - профессионалы (ком. 2026)
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23.08 Sun 04:00 149 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
30.08 Sun 04:00 156 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
06.09 Sun 04:00 163 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
13.09 Sun 04:00 170 days 07:00 Программирование - профессионалы (ком. 2026)
dl.gsu.by
29.03 Sun 08:00 44 hours 02:15 Weekend Practice #21 1 
basecamp.eolymp.com
01.04 Wed 11:00 5 days 02:00 Eolymp April Fools #1
basecamp.eolymp.com
29.03 Sun 11:00 47 hours 02:00 牛客周赛 Round 137 5 
ac.nowcoder.com
01.04 Wed 11:00 5 days 02:00 牛客2026年愚人节比赛 [ACM]
ac.nowcoder.com
03.04 Fri 11:00 7 days 03:00 牛客挑战赛87 [ACM]
ac.nowcoder.com
05.04 Sun 11:00 9 days 02:00 牛客周赛 Round 138
ac.nowcoder.com
10.04 Fri 11:00 14 days 02:00 牛客小白月赛131 [ACM]
ac.nowcoder.com
12.04 Sun 11:00 16 days 02:00 牛客周赛 Round 139
ac.nowcoder.com
01.04 Wed 04:00 5 days 7 days April Fools' Day Contest 3 1 
dmoj.ca
01.04 Wed 04:00 5 days 04:00 GCC '26 #1
dmoj.ca
01.04 Wed 15:30 5 days 01:30 Beginner Contest 109 1 
naukri.com/code360
02.04 Thu 15:01 6 days 02:00 Weekly Contest 224
naukri.com/code360
04.04 Sat 11:00 8 days 03:00 UOJ Easy Round #13
uoj.ac
05.04 Sun 14:30 9 days 02:30 M(IT)^2 2026 Spring Invitational Qualification Round 2
mitit.org
11.04 Sat 17:00 15 days 05:00 Rutgers University Programming Contest Spring 20…26 - Open Division. MattTheNub
codeforces.com/gyms
16.04 Thu 13:30 20 days 06:00 AI Agent Challenge Home
challenges.reply.com
19.04 Sun 12:00 23 days 12:00 ALPOC'26 - Qualification Round (unrated, icpc, team)
algoleague.com
25.04 Sat 18:30 29 days 06:00 Spring 2026 Virtual Programming Contest
teamscode.org
10.05 Sun 14:00 44 days 03:00 CROATIAN OLYMPIAD IN INFORMATICS
hsin.hr/coci
12.05 Tue 12:00 46 days 04:00 EGOI (Italy)
usaco.org
23.09 Wed 06:00 180 days 13 days Выходи решать!. Физика (5-7 класс) 8 
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Астрономия (8-9 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Биология (5-7 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Биология (8-9 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Информатика (8-9 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Математика (5-7 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Математика (8-9 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Физика (8-9 класс)
cups.online
28.09 Mon 06:00 185 days 7 days Выходи решать!. Химия (8-9 класс)
cups.online
01.01 Fri 00:00 280 days 23:59 Amazon Round 1 
repovive.com
01.01 Fri 00:00 280 days 23:59 Meta Round
repovive.com
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