The Euclid Contest is an annual mathematics competition for senior secondary school students, organized by the Centre for Education in Mathematics and Computing (CEMC) at the University of Waterloo. It is designed to challenge students with innovative problems requiring creativity and a strong command of secondary school mathematics. The contest consists of 10 questions in a mix of short-answer and full-solution formats, completed in 2.5 hours and scored out of 100. Some calculators are permitted.
The contest takes place in April each year at participating schools worldwide: April 6, 2027 for schools in North and South America, and April 7, 2027 for schools elsewhere. The base fee is CAD18 per student, paid through the school, with order processing and shipping charges described above. Recognition includes a Certificate of Distinction for the top 25% of participants, a Contest Medal for school champions, and provincial, national, and international honour rolls. At CEMC's discretion, the top five official participants in Canada receive a CAD500 prize and plaque, and the next ten receive CAD200. Strong performance on the Euclid Contest is also considered in scholarship decisions for applicants to the University of Waterloo's Faculty of Mathematics.
Students participate through their schools; there is no individual registration portal. Students should ask their math teacher or school contest supervisor to register through the CEMC Contest Supervisor Portal. Schools must order materials by March 11, 2027.
Source checked November 4, 2026: the official Euclid page confirms March 11, 2027 ordering and the separate April 6/7 regional sittings. Each participant writes for 2.5 hours on the appropriate single day; these are not a two-day attendance period. Official recognition uses the January 1, 2008 birth cutoff, replacing the former catalog's January 1, 2007 participation restriction. Students outside the official criteria may still write unofficially. The same page confirms the CAD18 fee and additional school order charges, and says the question booklet will be downloaded and printed rather than shipped. No ordering cutoff time, exact ordering opening date or subsequent-cycle schedule is verified.