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Competitions & olympiads around the world

106 live competitions & olympiads around the world, with deadlines, eligibility and official links. Filtered for students, graduates and professionals.

Where

Worldwide 59 United States 42 Canada 2 India 1 Romania 1 Switzerland 1

CompetitionPaid

Breakthrough Junior Challenge

Breakthrough Prize Foundation

Worldwide · Online · Deadline: see details

Competition

Codeforces Round 1131 (Div. 3)

Codeforces

Worldwide · Online · Closes 31 October 2026 · 8 days left

Competition

Codeforces Round (Div. 2)

Codeforces

Worldwide · Online · Closes 7 November 2026

Competition

Codeforces Round 1130 (Div. 2)

Codeforces

Worldwide · Online · Closes 26 October 2026 · 3 days left

Competition

Codeforces Round 1129 (Div. 2)

Codeforces

Worldwide · Online · Closes 24 October 2026 · 1 days left

Competition

Codeforces Round (Div. 1)

Codeforces

Worldwide · Online · Closes 7 November 2026

Competition

ICPC 2026 Online Challenge 2 powered by Huawei

Codeforces

Worldwide · Online · Closes 5 November 2026 · 13 days left

Competition

BackdoorCTF 2026

InfoSecIITR

Worldwide · Online · Closes 19 December 2026

Competition

Hack.lu CTF 2026

FluxFingers

Worldwide · Online · Closes 23 October 2026 · 0 days left

Competition

CSCTF 2026

Mirachron

Worldwide · Online · Closes 6 November 2026 · 14 days left

Competition

BlackAlps CTF 2026

BlackAlps

Switzerland · On site · Closes 6 November 2026 · 14 days left

Competition

niteCTF 2026

Cryptonite

Worldwide · Online · Closes 11 December 2026

Competition

HKCERT CTF 2026 (Qualifying Round)

Black Bauhinia

Worldwide · Online · Closes 6 November 2026 · 14 days left

Competition

L3m0n CTF 2026 (Quals)

L3m0n CTF

Worldwide · Online · Closes 28 November 2026

Competition

Cryovault 2026 Finals

x6e.x65.x78.x75.x73

India · On site · Closes 24 October 2026 · 1 days left

Competition

SpookyCTF 2026

NICC

Worldwide · Online · Closes 6 November 2026 · 14 days left

Competition

CSAW CTF Final Round 2026

NYUSEC

Worldwide · Online · Closes 12 November 2026

Competition

Sudocrypt v16.0

exunclan

Worldwide · Online · Closes 27 October 2026 · 4 days left

Competition

Platypwn 2026

Platypwnies

Worldwide · Online · Closes 13 November 2026

Competition

CTF@AC26 - Finals

UPT-CTF

Romania · On site · Closes 30 October 2026 · 7 days left

Competition

WolvCTF 2026

w01verines

Worldwide · Online · Closes 13 November 2026

Competition

EyesOpenCTF 7th edition

EyesOpen_Security

Worldwide · Online · Closes 20 November 2026

Competition

GlacierCTF 2026

LosFuzzys

Worldwide · Online · Closes 20 November 2026

Competition

HI Cyber Con 2026 CTF

HiddenInvestigations

Worldwide · Online · Closes 30 October 2026 · 7 days left

Competition

Outback Overflow

HSCC

Worldwide · Online · Closes 20 November 2026

Competition

Crate-CTF 2026

Crate-CTF

Worldwide · Online · Closes 21 November 2026

Competition

bi0sCTF 2026

bi0s

Worldwide · Online · Closes 5 December 2026

Competition

StealthCup 2026

0x01DA

Canada · On site · Closes 31 October 2026 · 8 days left

Competition

BSides Algiers 2026

sarrus

Worldwide · Online · Closes 17 December 2026

Competition

RSTCON 2026 CTF

RSTCON

Worldwide · Online · Closes 23 October 2026 · 0 days left

Competition

ASIS CTF Finals 2026

ASIS

Worldwide · Online · Closes 27 December 2026

Competition

PINK+ CTF 2026

PINK+

Worldwide · Online · Closes 6 November 2026 · 14 days left

Competition

2026 Qiangwang Challenge on Cyber Mimic Defense Qualification

LoveFromMimic

Worldwide · Online · Closes 31 October 2026 · 8 days left

Competition

CyberSci Regional Qualifiers 2026-27

CyberSciOrganizers

Canada · On site · Closes 21 November 2026

Competition

LakeCTF Quals 26-27

polygl0ts

Worldwide · Online · Closes 27 November 2026

Competition

HITCON CTF 2026

HITCON

Worldwide · Online · Closes 23 October 2026 · 0 days left

Competition

Russian CTF Cup X Qualifier

ctfcup

Worldwide · Online · Closes 31 October 2026 · 8 days left

Competition

x3CTF 2026

x3CTF

Worldwide · Online · Closes 4 December 2026

Competition

Codeforces Round (Div. 3)

Codeforces

Worldwide · Online · Closes 31 October 2026 · 8 days left

Competition

Codeforces Round (Div. 2)

Codeforces

Worldwide · Online · Closes 26 October 2026 · 3 days left

Who these are for

High-school students: 9
High-school graduates: 0
University students (bachelor): 9
Master's level: 1
PhD & postdoctoral: 0
Professionals: 0
Open to everyone: 38

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