LIMUN Foundation (London International Model United Nations)
London's annual Model United Nations conference for secondary and sixth-form students aged 13-18, run by the LIMUN Foundation at King's College London. Edition XI is provisionally 16-18 April 2027 and applications are opening soon.
Türkiye Teknoloji Takımı Vakfı (T3 Vakfı) – TEKNOFEST
A two-stage datathon (Kaggle) and hackathon, run with Trendyol and the Ministry of Industry and Technology, in which teams build AI models that improve e-commerce search and shopping.
NUS Greyhats (supported by the National Cybersecurity R&D Lab)
An annual Capture-The-Flag cybersecurity competition hosted by NUS Greyhats, with a Local Category for pre-university and undergraduate students who are Singapore citizens or PRs.
Department of Mathematics, School of Advanced Sciences, Vellore Institute of Technology (VIT), Vellore
VIT Vellore's Department of Mathematics holds an annual one-day national mathematics contest for school students, with a talent examination, quiz, model exhibition and poster presentation at three class levels. The 2027 edition has not been announced.
Georgia's statewide high-school mock trial competition, run by the State Bar of Georgia Young Lawyers Division: school teams argue an original case as attorneys and witnesses, advancing from local rounds to the state finals; the state champion represents Georgia at the National High School Mock Trial Championship.
TÜBİTAK Bilim İnsanı Destek Programları Başkanlığı (BİDEB)
TÜBİTAK's national Mathematics olympiad: a first-stage multiple-choice exam held in all 81 provincial centres, followed by a summer school, second-stage exam, national medals, winter school and team selection for regional and international olympiads.
YMCA Youth & Government with the Washington Administrative Office of the Courts and Washington State Bar Association Young Lawyers Division
Washington's statewide high-school mock trial competition: student teams prepare a case as attorneys and witnesses and try it before real judges and attorneys in courtrooms.
A roughly six-month JA Québec program where Secondary III-V and CEGEP students form teams to start and run a real student business with business mentors.
Wisconsin DECA's 2027 state conference where high school members compete in business and marketing competitive events (marketing, finance, hospitality, management and entrepreneurship) and attend leadership workshops; top finishers can qualify for the DECA national conference.
A six-day residential mathematics camp at the Nesin Mathematics Village during the November mid-term break, covering functions, parabolas and trigonometry with teacher Mustafa Yağcı.
대한지리학회·국토연구원 주최, 전국지리교사연합회 주관 (The Korean Geographical Society)
An annual national geography olympiad for high school students hosted by the Korean Geographical Society and the Korea Research Institute for Human Settlements, run by the national geography teachers' association at regional exam sites.