2026–2030 calendar

Competition calendar

Tech competitions highlighted (⚡), science olympiads, hackathons and more. Filter by age and click an event for details.

⚡ Upcoming tech dates

48h HackathonsMLH GHWOnline hackathon weekNov 6–12, 2026happening now </> ProgrammingBebrasWorld-Wide Bebras Week of computational thinkingNov 9–13, 2026happening now 🔐 CybersecurityCSAWCSAW Cybersecurity Games Global FinalsNov 12–14, 2026in 2 days 48h HackathonsJunctionHackathon (48 h)Nov 13–15, 2026in 3 days

Sun

Mon

Tue

Wed

Thu

Fri

Sat

ECSC

IEEEXtreme CSO

Long registration periods appear only on the days they open and close.

This month's competitions

October 2026

5 dates

Space AppsNASA International Space Apps Challenge 2026

Participant registration · Aug 26 – Nov 15, 2026

Online⚡ TechnologyHackathonsInternational

🧒 Kids🧑‍💻 Teens🎓 University🌍 Adults

Free and open to all ages; participants under 18 must be registered and accompanied by a parent or guardian

open nowConfirmedOfficial website ↗source

CSOClimateScience Olympiad

Global semifinals and finals · Sep 1 – Oct 31, 2026

OnlineScienceInternational

🧑‍💻 Teens🎓 University

Solving complex case studies on climate mitigation.

closedConfirmedOfficial website ↗source

ECSCEuropean Cybersecurity Challenge (ECSC)

European competition · Oct 12–16, 2026

Bochum, Germany⚡ TechnologyCybersecurityInternational

🧑‍💻 Teens🎓 University

National teams of young people aged 14 to 25; Portugal competes as Team Portugal

closedConfirmedOfficial website ↗source

IEEEXtremeIEEEXtreme 20.0

24-hour programming contest · Oct 31, 2026

Online⚡ TechnologyProgrammingInternational

🎓 University

Teams of 1 to 3 IEEE student members, ages 18+

closedConfirmedOfficial website ↗source

This month, no set day · announcements and estimates

HacktoberfestHacktoberfest

Open source month, focused on open AI · October 2026 (days to be confirmed)

Online and local meetups in many countries⚡ TechnologyOpen sourceInternational

🧑‍💻 Teens🎓 University🌍 Adults

awaiting datesMonth announcedOfficial website ↗source

Confirmed: official days · Month announced: days to be confirmed · Estimate: the month it is usually held, not announced yet · No forecast: date unknown.
Dates checked on the organizers' official websites and calendars (last review on November 6, 2026). They may change: always confirm on the official website before registering or traveling.