Tio·Vené

2026–2030 calendar

Competition calendar

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

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April 2026

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

This month's competitions

April 2026

3 dates

CSOClimateScience Olympiad

Online qualifying round (Qualifiers) · Jan 1 – Jun 10, 2026

Online (climatescience.org/olympiad)ScienceInternational
🧑‍💻 Teens🎓 University

25-minute online quiz on climate science and ecological transition.

SASMOSingapore and Asian Schools Math Olympiad (SASMO)

Singapore and Asian Schools Math Olympiad Official Contest · Apr 3–5, 2026

Online (and accredited Mathletes schools in Brazil)MathematicsInternational
🧒 Kids🧑‍💻 Teens

Online proctored exam via Zoom or in-person at partner schools.

EGMOEuropean Girls' Mathematical Olympiad

Competition · Apr 9–15, 2026

Bordeaux, FranceMathematicsInternational
🧑‍💻 Teens

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.