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 CSO

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

This month's competitions

October 2026

15 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

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.