Vietnam Mathematical Society (Hội Toán học Việt Nam)
The Vietnam Mathematical Society's annual olympiad (Algebra and Analysis) for teams from specialised (chuyên) high schools, run alongside the university students' olympiad.
Ho Chi Minh Communist Youth Union Central Committee; CYTAST
The Ho Chi Minh Communist Youth Union's national programming and creative-tech contest for primary, lower- and upper-secondary students, with provincial teams and an open online qualifier.
The Hawaii state Science Olympiad tournament, where school teams compete in science and engineering events for the state title and a place at the national tournament.
Massachusetts 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.
Arizona Foundation for Legal Services & Education and State Bar of Arizona Young Lawyers Division
Arizona'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 90-minute national online mathematics quiz by NIE for Secondary 1, 2 and 3 students, closely aligned to the MOE secondary mathematics syllabuses, with personalised feedback for every participant.
Hai Phong Department of Education and Training's official city excellent-students exam in Maths and natural sciences taken in English exam, held on 3 March 2027 (planned).