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

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IOAA

WAICY opens IOAA STEM Olympiad

Technovation opens NEO Science

ECSC NEO Science

Scratch Olympiad ECSC NEO Science

GEMA Scratch Coding Olympiad IEEEXtreme+1 event

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

This month's competitions

October 2026

16 dates

SMETASMETA Olympiads

Registrations for SMETA Olympiads · Aug 25 – Oct 25, 2026

Online (smetaolympiads.org)ScienceInternational

🧒 Kids🧑‍💻 Teens

Open registrations for primary and secondary students in Math, Science, English, and Arts.

closedConfirmedOfficial website ↗source

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

GEMA ScratchInternational Scratch Olympiad (GEMA)

Project submission – Autumn Edition · Sep 1 – Oct 31, 2026

Online (scratcholympiads.com)⚡ TechnologyProgrammingInternational

🧒 Kids🧑‍💻 Teens

Submission of original Scratch projects evaluated on creativity and coding logic.

closedConfirmedOfficial website ↗source

Scratch OlympiadInternational Scratch Creative Programming Olympiad

Online international finals · Sep 15 – Oct 15, 2026

Online⚡ TechnologyProgrammingInternational

🧒 Kids🧑‍💻 Teens🌍 Adults

Final evaluation of shortlisted projects by an international jury.

closedConfirmedOfficial website ↗source

IOAAInternational Olympiad on Astronomy and Astrophysics

Competition · Sep 25 – Oct 5, 2026

Hanoi, VietnamAstronomyInternational

🧑‍💻 Teens

closedConfirmedOfficial website ↗source

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

WAICYWorld Artificial Intelligence Competition for Youth

Submission of AI projects and prototypes · Oct 1 – Nov 29, 2026

Online (waicy.org)⚡ TechnologyArtificial intelligenceInternational

🧒 Kids🧑‍💻 Teens

Categories in Applied AI, LLMs/Prompts, AI Art and Video for students aged 6 to 18.

open nowConfirmedOfficial website ↗source

NEO ScienceInternational NEO Science Olympiad

Qualifying Exams in Chemistry, Biology, Physics and Natural Science · Oct 3–17, 2026

Online (neoscience.org)ScienceInternational

🧒 Kids🧑‍💻 Teens

Chemistry and Biology exams on 03/10; Physics, Math and Natural Science on 17/10.

closedConfirmedOfficial website ↗source

FGCFIRST Global Challenge 2026

World final (robotics olympics) · Oct 7–10, 2026

Incheon, South Korea⚡ TechnologyRoboticsInternational

🧑‍💻 Teens

One national team per country, made up of high-school-aged students

closedConfirmedOfficial website ↗source

TechnovationTechnovation Girls

Team registration · Oct 11 – Mar 11, 2027

Online⚡ TechnologyProgrammingInternational

🧒 Kids🧑‍💻 Teens

Ages 8–18, in mentored teams; girls track and co-ed track

open nowConfirmedOfficial 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

AMOAmerican Math Olympiad (AMO)

American Math Olympiad Official Contest · Oct 17–19, 2026

Online (and partner schools across Brazil)MathematicsInternational

🧒 Kids🧑‍💻 Teens

Test administration window featuring open-response and multiple-choice questions aligned with US Common Core standards.

closedConfirmedOfficial website ↗source

Coding OlympiadInternational Coding Olympiad

1st Online Qualifying Round (Arena Battles & Codementum) · Oct 31 – Nov 1, 2026

Online (codingolympiad.org)⚡ TechnologyProgrammingInternational

🧒 Kids🧑‍💻 Teens

36-hour window to solve block-based, logic, and coding challenges.

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.