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

NEO Science

STEAM AHEAD

STEM Olympiad

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

This month's competitions

December 2026

3 dates

STEM OlympiadInternational STEM Olympiad

Project submission – STEM Maker Challenge · Oct 1 – Dec 21, 2026

Online (stemolympiad.org)ScienceInternational

🧒 Kids🧑‍💻 Teens

Hands-on engineering and Maker creation challenge for Grades 4 to 9 students.

happening nowConfirmedOfficial website ↗source

STEAM AHEADSTEAM AHEAD – International Mega Finals

STEAM AHEAD Grand Gathering & Global Finals · Dec 5–9, 2026

Rotating host city in Asia (Bali/Istanbul/Singapore)ScienceInternational

🧒 Kids🧑‍💻 Teens

Gathering of top global students across concurrent finals in Mathematics (IJMO), Science (Vanda), and Computing (DrCT).

in 25 daysConfirmedOfficial website ↗source

This month, no set day · announcements and estimates

IJSOInternational Junior Science Olympiad

Competition · December 2026 (days to be confirmed)

Sofia, BulgariaScienceInternational

🧑‍💻 Teens

Official website only says 'December 2026'; exact days not released.

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.