24.12 Wed 14:00 over 04:00 Xmas Contest 2025
atcoder.jp?lang=ja
24.12 Wed 16:30 over 02:00 Starters 218 (Rated till 5 stars)
codechef.com
24.12 Wed 17:00 over 01:30 Beginner Contest 102
naukri.com/code360
25.12 Thu 05:00 3:39:14 03:00 An Advanced Algorithmic Assessment 1. Rated
dmoj.ca
25.12 Thu 11:00 9 hours 24 days CodeRun Winter Challenge
coderun.yandex.ru
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Astronomy 7 
cups.online
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Biology
cups.online
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Chemistry
cups.online
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Computer science
cups.online
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Math
cups.online
28.12 Sun 20:59 4 days 51 days Love to solve [design]. Physics
cups.online
31.12 Wed 20:00 7 days 49 days Python Spring 2025. Python. Осень 2025. Задание 6
cups.online
08.10 Thu 07:00 287 days 365 days Russian Olympiad in Artificial Intellig…ence 2026 [ai]. Training round
cups.online
31.12 Wed 22:00 7 days 6 years HOT • Practice
algotester.com
31.12 Wed 23:59 7 days 30 days Diabetes Prediction Challenge [beg…inner, tabular, roc auc score] 12 
kaggle.com
06.01 Tue 23:59 13 days 103 days NFL Big Data Bowl 2026 - Prediction [fo…otball, sports, custom metric]
kaggle.com
12.01 Mon 23:59 19 days 62 days Google Tunix Hack - Train a model to show its work [reinforcement learning, tpu, ml et…hics, text generation, coding]
kaggle.com
15.01 Thu 23:59 22 days 84 days Recod.ai/LUC - Scientific Image Forgery Detection [research, biology, m…edicine, image, custom metric]
kaggle.com
16.01 Fri 23:59 23 days 176 days MITSUI&CO. Commodity Prediction Challenge [fina…nce, investing, custom metric]
kaggle.com
22.01 Thu 23:59 29 days 93 days PhysioNet - Digitization of ECG Images [health, medicine, time s…eries analysis, custom metric]
kaggle.com
28.01 Wed 23:59 35 days 92 days CSIRO - Image2Biomass Prediction [b…iology, agriculture, r2 score]
kaggle.com
30.01 Fri 23:59 37 days 74 days Santa 2025 - Christmas Tree Packing Challenge [optimization, holidays and c…ultural events, custom metric]
kaggle.com
02.02 Mon 23:59 40 days 110 days CAFA 6 Protein Function Prediction [healthcare, bi…ology, tabular, custom metric]
kaggle.com
13.02 Fri 23:59 51 days 92 days Vesuvius Challenge - Surface Detection [history, image segmentation…, segmentation, custom metric]
kaggle.com
23.03 Mon 23:59 89 days 97 days Deep Past Challenge - Translate Akkadian to English [history, tex…t, translation, custom metric]
kaggle.com
15.04 Wed 23:59 112 days 146 days AI Mathematical Olympiad - Progress Prize 3 [nl…p, mathematics, custom metric]
kaggle.com
16.06 Tue 23:59 174 days 273 days Hull Tactical - Market Prediction [fi…nance, tabular, custom metric]
kaggle.com
01.01 Thu 00:00 7 days 3 years TCP_Maratona
spoj.com
09.01 Fri 05:00 15 days 95 days Booster Soccer Showdown
competesai.com
13.01 Tue 21:00 20 days 43 days Отборочный этап. XX Открытая олимпиада по программированию
inf-open.ru
21.02 Sat 16:00 59 days 91 days Powerful Sums
azspcs.com
13.11 Fri 00:00 323 days 365 days Snake3D
datsteam.dev
25.12 Thu 12:00 10 hours 05:00 Сборы перед третьим этапом BelOI 2026, дека…брь 2025 - январь 2026. День 3
contest.yandex.ru/CYF
25.12 Thu 13:00 11 hours 04:00 Replay of DIU Take-OFF Programming Contest Fall-25 [Final] 1 
toph.co
31.12 Wed 02:30 6 days 00:40 Tough Dash, December 2025
toph.co
25.12 Thu 15:01 13 hours 02:00 Weekly Contest 210 1 
naukri.com/code360
07.01 Wed 15:30 14 days 01:30 Beginner Contest 103
naukri.com/code360
26.12 Fri 11:00 33 hours 16 days ICPC 2025 Online Winter Challenge powered by Huawei 2 
codeforces.com
27.12 Sat 14:35 3 days 03:00 Good Bye 2025
codeforces.com
29.12 Mon 14:35 5 days 02:00 Educational Codeforces Round 186 (Rated for Div. 2)
codeforces.com
26.12 Fri 11:00 33 hours 02:00 【LGR-259-Div.4】洛谷入门赛 #42 [rated, ioi] 5 
luogu.com.cn
28.12 Sun 06:00 3 days 03:30 【LGR-256-Div.3】洛谷基础赛 #29 & QFOI Round 3 [rated, ioi]
luogu.com.cn
31.12 Wed 11:30 6 days 05:00 【LGR-260-Div.1+2】洛谷 12 月月赛 II & FAOI R…10: 2025-2026 跨年赛 [rated, ioi]
luogu.com.cn
01.01 Thu 06:00 7 days 03:00 GenshinOI Round 6 [rated, ioi]
luogu.com.cn
02.01 Fri 05:30 8 days 04:00 GenshinOI Round 7 [ioi]
luogu.com.cn
03.01 Sat 06:00 9 days 04:00 【LGR-257-Div.2】洛谷 1 月月赛 I & ffbb OI round 1 [rated, ioi]
luogu.com.cn
26.12 Fri 11:00 33 hours 02:00 牛客小白月赛126 [ACM] 5 
ac.nowcoder.com
28.12 Sun 11:00 3 days 02:00 牛客周赛 Round 124 [IOI]
ac.nowcoder.com
31.12 Wed 13:00 6 days 03:05 牛客2025跨年场 [ACM]
ac.nowcoder.com
04.01 Sun 11:00 10 days 02:00 牛客周赛 Round 125 [IOI]
ac.nowcoder.com
03.02 Tue 06:00 40 days 04:00 2026牛客寒假算法基础集训营1 [ACM]
ac.nowcoder.com
05.02 Thu 06:00 42 days 04:00 2026牛客寒假算法基础集训营2 [ACM]
ac.nowcoder.com
26.12 Fri 15:10 37 hours 01:25 Community Code Cup [sport_coding]. Code Cup 9 6 
cups.online
15.01 Thu 06:00 21 days 32 days Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». Второй тур заочног…о отборочного этапа, 7-8 класс
cups.online
15.01 Thu 06:00 21 days 32 days Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». Второй тур заочного …отборочного этапа, 9-11 класс
cups.online
08.02 Sun 07:05 45 days 03:00 Technocup 2025-2026 [sport_coding]. Second qualifying stage
cups.online
13.03 Fri 06:00 78 days 05:00 Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». …Заключительный этап, 7-8 класс
cups.online
13.03 Fri 06:00 78 days 05:00 Международная олимпиада Innopolis Open 2025 – Профиль «Робототехника». З…аключительный этап, 9-11 класс
cups.online
13.03 Fri 07:00 78 days 56:00 Technocup 2025-2026 [sport_coding]. Final stage
cups.online
26.12 Fri 18:30 41 hours 48:00 Weekend Dev Challenge 30: SQL Projects 2 
codechef.com
27.12 Sat 04:30 51 hours 05:00 ICPC Kanpur 2025 Onsite - Replay Round
codechef.com
31.12 Wed 14:30 7 days 02:00 Starters 219
codechef.com
27.12 Sat 05:00 51 hours 05:00 The 4th Universal Cup. Stage 10: TBD 7 
ucup.ac
03.01 Sat 05:00 9 days 05:00 The 4th Universal Cup. Stage 11: TBD
ucup.ac
10.01 Sat 05:00 16 days 05:00 The 4th Universal Cup. Extra Stage 4: TBD
ucup.ac
17.01 Sat 05:00 23 days 05:00 The 4th Universal Cup. Stage 12: TBD
ucup.ac
24.01 Sat 05:00 30 days 05:00 The 4th Universal Cup. Stage 13: TBD
ucup.ac
31.01 Sat 05:00 37 days 05:00 The 4th Universal Cup. Stage 14: TBD
ucup.ac
07.02 Sat 05:00 44 days 05:00 The 4th Universal Cup. Stage 15: TBD
ucup.ac
21.02 Sat 05:00 58 days 05:00 The 4th Universal Cup. Stage 16: TBD
ucup.ac
27.12 Sat 08:00 54 hours 03:00 Midas - Future Talent League 2025 - Qualification Rou…nd (unrated, icpc, individual) 1 
algoleague.com
03.01 Sat 11:00 9 days 05:00 Algorithm Competition Winter Camp 2026 - Qualification Round …☃️ (unrated, icpc, individual)
algoleague.com
27.12 Sat 12:00 58 hours 01:40 AtCoder Beginner Contest 438 8 
atcoder.jp
28.12 Sun 12:00 3 days 03:00 AtCoder Grand Contest 076
atcoder.jp
03.01 Sat 12:00 9 days 01:40 AtCoder Beginner Contest 439
atcoder.jp
10.01 Sat 06:00 16 days 04:00 AtCoder Heuristic Contest 059
atcoder.jp
10.01 Sat 12:00 16 days 01:40 AtCoder Beginner Contest 440
atcoder.jp
11.01 Sun 12:00 17 days 02:00 AtCoder Regular Contest 212 (Div. 2)
atcoder.jp
17.01 Sat 12:00 23 days 01:40 AtCoder Beginner Contest 441 (Pr…omotion of Engineer Guild Fes)
atcoder.jp
24.01 Sat 12:00 30 days 01:40 JPRS Programming Contest 2026#1 …(AtCoder Beginner Contest 442)
atcoder.jp
01.02 Sun 10:00 38 days 04:00 RECRUIT Nihonbashi Half Marathon 2026 Winter (…AtCoder Heuristic Contest 060)
atcoder.jp
27.12 Sat 14:00 3 days 24:00 ASIS CTF Final 2025 13 
ctftime.org
27.12 Sat 20:00 3 days 48:00 hxp 39C3 CTF
ctftime.org
09.01 Fri 00:00 15 days 72:00 RUSEC CTF 2025
ctftime.org
10.01 Sat 00:00 16 days 48:00 UofTCTF 2026
ctftime.org
17.01 Sat 03:10 23 days 12:00 SWIMMER OSINT CTF
ctftime.org
30.01 Fri 09:00 36 days 09:00 Jeanne d'Hack CTF 2026 | 3ème Édition
ctftime.org
31.01 Sat 08:00 37 days 24:00 PascalCTF Beginners 2026
ctftime.org
07.03 Sat 14:00 73 days 29:00 @Hack 2026
ctftime.org
21.03 Sat 11:00 86 days 08:00 Undutmaning 2026
ctftime.org
10.04 Fri 22:00 107 days 48:00 UMassCTF 2026
ctftime.org
11.04 Sat 10:00 107 days 24:00 Midnight Sun CTF 2026 Quals
ctftime.org
17.04 Fri 17:00 114 days 36:00 BlueHens CTF 2025
ctftime.org
08.05 Fri 10:00 134 days 55:00 PHONIX VIPER NOVA CTF#2
ctftime.org
07.06 Sun 10:00 164 days 24:00 SSMCTF 2026 Qualifiers
ctftime.org
27.12 Sat 22:00 3 days 00:00 Problem 976
projecteuler.net
28.12 Sun 02:30 3 days 01:30 Weekly Contest 482 2 
leetcode.com
03.01 Sat 14:30 10 days 01:30 Biweekly Contest 173
leetcode.com
04.01 Sun 02:30 10 days 01:30 Weekly Contest 483
leetcode.com
28.12 Sun 06:00 3 days 05:00 Подготовка к области/республике 2026 2 
dl.gsu.by
04.01 Sun 06:00 10 days 05:00 Подготовка к области/республике 2026
dl.gsu.by
11.01 Sun 06:00 17 days 05:00 Подготовка к области/республике 2026
dl.gsu.by
28.12 Sun 11:00 3 days 01:30 Blitz Round #9
basecamp.eolymp.com
28.12 Sun 15:35 4 days 03:00 Repovive Goodbye 2025 Round
repovive.com
01.01 Thu 12:00 7 days 05:00 New Year Contest 2026
andgein.ru
24.01 Sat 14:00 31 days 03:00 CONTEST #4 3 
hsin.hr/coci
21.02 Sat 14:00 59 days 03:00 CONTEST #5
hsin.hr/coci
21.03 Sat 14:00 87 days 03:00 CONTEST #6
hsin.hr/coci
10.05 Sun 14:00 137 days 03:00 CROATIAN OLYMPIAD IN INFORMATICS
hsin.hr/coci
09.02 Mon 05:00 46 days 83 days ICRA 2026 Sim2Real Soccer Challenge
competesai.com
04.03 Wed 21:00 70 days 48:00 Заключительный этап. XX Открытая …олимпиада по программированию
inf-open.ru
loading...