IM²CInternational Mathematical Modeling Challenge
Contest window (each team picks 5 consecutive days) · Feb 1 – Apr 26, 2027
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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Long registration periods appear only on the days they open and close.
This month's competitions
April 2027
10 dates
OIESpanish Olympiad in Informatics
National final · Apr 9–11, 2027
EGMOEuropean Girls' Mathematical Olympiad
Competition · Apr 11–17, 2027
RECF WorldsRECF World Championship 2027
World final · Apr 25 – May 7, 2027
FIRSTFIRST Championship 2027
World final (FLL, FTC and FRC) · Apr 28 – May 1, 2027
This month, no set day · announcements and estimates
IMChOInternational Mendeleev Chemistry Olympiad
Competition · usually held in April · 2027
LDLudum Dare 61
Game jam (48 h compo or 72 h jam) · April 2027 (days to be confirmed)
OBGBrazilian Geography Olympiad
Registration opens · usually held in April · 2027
SASMOSingapore and Asian Schools Math Olympiad (SASMO)
Singapore and Asian Schools Math Olympiad Official Contest · usually held in April · 2027
VEX WorldsVEX Robotics World Championship 2027
World final (late April) · April 2027 (days to be confirmed)
No date yet in 2027 (15)
CSCPTCybersecurity Challenge PT
Qualifying competition (date to be defined) · no date forecast yet · 2027
Cone SulSouthern Cone Mathematical Olympiad
Competition · no date forecast yet · 2027
EGOIEuropean Girls' Olympiad in Informatics
Competition · no date forecast yet · 2027
FGCFIRST Global Challenge 2027
World final (robotics olympics) · no date forecast yet · 2027
IESOInternational Earth Science Olympiad
Competition · no date forecast yet · 2027
IJSOInternational Junior Science Olympiad
Competition · no date forecast yet · 2027
IOAAInternational Olympiad on Astronomy and Astrophysics
Competition · no date forecast yet · 2027
OIABIbero-American Biology Olympiad
Competition · no date forecast yet · 2027
OIAQIbero-American Chemistry Olympiad
Competition · no date forecast yet · 2027
OIIIbero-American Olympiad in Informatics
Competition · no date forecast yet · 2027
awaiting datesNo forecast
OIMIbero-American Mathematical Olympiad
Competition · no date forecast yet · 2027
OIbFIbero-American Physics Olympiad
Competition · no date forecast yet · 2027
awaiting datesNo forecast
OLAALatin American Astronomy and Astronautics Olympiad
Competition · no date forecast yet · 2027
OMCPLPMathematical Olympiad of the Community of Portuguese-Speaking Countries
Competition · no date forecast yet · 2027
RMMRomanian Master of Mathematics
Competition · no date forecast yet · 2027
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.