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

IMO IBO IChO+1 event

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

This month's competitions

July 2027

9 dates

IYPTInternational Young Physicists' Tournament

Competition · Jul 5–12, 2027

Auckland, New ZealandPhysicsInternational

🧑‍💻 Teens

Team competition with open-ended problems published in advance.

in 237 daysConfirmedOfficial website ↗source

IMOInternational Mathematical Olympiad

Competition · Jul 16–26, 2027

Budapest, HungaryMathematicsInternational

🧑‍💻 Teens

in 248 daysConfirmedOfficial website ↗source

IBOInternational Biology Olympiad

Competition · Jul 18–25, 2027

Warsaw, PolandBiologyInternational

🧑‍💻 Teens

in 250 daysConfirmedOfficial website ↗source

IChOInternational Chemistry Olympiad

Competition · Jul 19–28, 2027

Taipei, TaiwanChemistryInternational

🧑‍💻 Teens

in 251 daysConfirmedOfficial website ↗source

IOLInternational Linguistics Olympiad

Competition · Jul 21–28, 2027

Bangkok, ThailandLinguisticsInternational

🧑‍💻 Teens

in 253 daysConfirmedOfficial website ↗source

This month, no set day · announcements and estimates

IPhOInternational Physics Olympiad

Competition · July 2027 (days to be confirmed)

Saudi Arabia (city to be confirmed)PhysicsInternational

🧑‍💻 Teens

Host approved by the IPhO Board at IPhO 2026; city and dates not yet officially published. Estimated month.

awaiting datesMonth announcedOfficial website ↗source

MOSTRATECInternational Science and Technology Fair (MOSTRATEC)

Project submission · usually held in July · 2027

OnlineScienceBrazil

🧑‍💻 Teens

⏳ Dates and registration not announced yet

In 2026, project submission ran from July 1 to 31.

awaiting datesEstimateOfficial website ↗source

NEO ScienceInternational NEO Science Olympiad

International NEO Science Olympiad Grand Final · usually held in July · 2027

New York, USAScienceInternational

🧒 Kids🧑‍💻 Teens

⏳ Dates and registration not announced yet

Online exams in Natural Science, Physics, Chemistry, Biology, Mathematics and Astronomy with in-person Grand Final.

awaiting datesEstimateOfficial website ↗source

SIMOCSingapore International Math Olympiad Challenge (SIMOC)

SIMOC In-Person International Grand Finals · usually held in July · 2027

SingaporeMathematicsInternational

🧒 Kids🧑‍💻 Teens

⏳ Dates and registration not announced yet

In-person contest in Singapore for SASMO, AMO, and SMC medalists, featuring individual exams and team math games (Math Warriors and Mind Sports).

awaiting datesEstimateOfficial website ↗source

No date yet in 2027 (11)

Cone SulSouthern Cone Mathematical Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedMathematicsIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

IESOInternational Earth Science Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedScienceInternational

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗

IJSOInternational Junior Science Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedScienceInternational

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

IOAAInternational Olympiad on Astronomy and Astrophysics

Competition · no date forecast yet · 2027

Venue to be announcedAstronomyInternational

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

OIABIbero-American Biology Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedBiologyIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

OIAQIbero-American Chemistry Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedChemistryIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastsource

OIMIbero-American Mathematical Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedMathematicsIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

OIbFIbero-American Physics Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedPhysicsIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecast

OLAALatin American Astronomy and Astronautics Olympiad

Competition · no date forecast yet · 2027

Venue to be announcedAstronomyIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗source

OMCPLPMathematical Olympiad of the Community of Portuguese-Speaking Countries

Competition · no date forecast yet · 2027

Venue to be announcedMathematicsIbero-American

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial website ↗

RMMRomanian Master of Mathematics

Competition · no date forecast yet · 2027

Venue to be announcedMathematicsInternational

🧑‍💻 Teens

⏳ Dates and registration not announced yet

awaiting datesNo forecastOfficial 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.