Mississippi's statewide high-school mock trial competition, run by the Mississippi Bar: school teams argue an original case as attorneys and witnesses, advancing from local rounds to the state finals; the state champion represents Mississippi at the National High School Mock Trial Championship.
Oklahoma's state contest of National History Day (NHD), run by the Oklahoma Historical Society: middle- and high-school students present history research projects on the 2027 theme "Innovation in History: Impact, Influence, Change" and the top entries advance to the national contest.
Arizona DECA's 2027 state conference, where high-school members compete in business and marketing events (marketing, finance, hospitality, management and entrepreneurship); top finishers can qualify for DECA's International Career Development Conference.
Singapore's national robotics competition, run by Science Centre Singapore since 1999: teams build and program robots for challenge missions, open-ended projects or AI tasks.
Delaware 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.
Canada’s national skilled trades and technology competition in Calgary, for competitors who qualify through provincial and territorial Skills competitions.
Tan Kah Kee Foundation, supported by MOE and Science Centre Singapore
Long-running Singapore invention award where students apply scientific principles to build original inventions; winning entries are exhibited at a ceremony at Science Centre Singapore.