Tio·Vené

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 days48h HackathonsJunctionHackathon (48 h)Nov 13–15, 2026in 3 days
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July 2026

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

This month's competitions

July 2026

12 dates

OBSMABrazilian Health and Environment Olympiad

Project submissions – 13th edition (2025-2026), extended · Aug 18 – Jul 20, 2026

Online (olimpiada.fiocruz.br, registration by the teacher)Health and environmentBrazil
🧒 Kids🧑‍💻 Teens
closedConfirmedOfficial website ↗source

ONCNational Science Olympiad

Registration (updated deadline) · Apr 1 – Aug 24, 2026

Online (onciencias.org, through the school)ScienceBrazil
🧒 Kids🧑‍💻 Teens
closedConfirmedOfficial website ↗source

OBGBrazilian Geography Olympiad

Team registration (extended until 20/07) · Apr 9 – Jul 20, 2026

OnlineGeographyBrazil
🧑‍💻 Teens
closedConfirmedOfficial website ↗source

OBSUSBrazilian Sustainability Olympiad

Team registrations (free) · May 1 – Aug 23, 2026

Online (olimpiadasustentabilidade.org)ScienceBrazil
🧑‍💻 Teens

Teams of up to 3 students or individual entry (middle, high school and recent graduates up to 19).

closedConfirmedOfficial website ↗source

OBOceanoBrazilian Ocean Olympiad

Registrations (open to schools and general public) · Jun 8 – Sep 20, 2026

Online (olimpiada.maredeciencia.eco.br)ScienceBrazil
🧒 Kids🧑‍💻 Teens🎓 University🌍 Adults

Tracks: knowledge exams, socio-environmental projects, and cultural/artistic works.

closedConfirmedOfficial website ↗source

ONEENational Energy Efficiency Olympiad

Registration (done by schools) · Jun 8 – Sep 15, 2026

Online (onee.org.br)ScienceBrazil
🧒 Kids🧑‍💻 Teens
closedConfirmedOfficial website ↗source

IPhOInternational Physics Olympiad

Competition · Jul 4–12, 2026

Bucaramanga, ColombiaPhysicsInternational
🧑‍💻 Teens
closedConfirmedOfficial website ↗source

IChOInternational Chemistry Olympiad

Competition · Jul 10–19, 2026

Tashkent, UzbekistanChemistryInternational
🧑‍💻 Teens
closedConfirmedOfficial website ↗source

IMOInternational Mathematical Olympiad

Competition · Jul 10–21, 2026

Shanghai, ChinaMathematicsInternational
🧑‍💻 Teens
closedConfirmedOfficial website ↗source

IBOInternational Biology Olympiad

Competition · Jul 12–19, 2026

Vilnius, LithuaniaBiologyInternational
🧑‍💻 Teens
closedConfirmedOfficial website ↗source

SIMOCSingapore International Math Olympiad Challenge (SIMOC)

SIMOC In-Person International Grand Finals · Jul 17–22, 2026

SingaporeMathematicsInternational
🧒 Kids🧑‍💻 Teens

In-person event featuring opening ceremonies, individual tests, and Math Warriors challenges in Singapore.

closedConfirmedOfficial website ↗source

IOLInternational Linguistics Olympiad

Competition · Jul 26 – Aug 2, 2026

Bucharest, RomaniaLinguisticsInternational
🧑‍💻 Teens
closedConfirmedOfficial 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.