# Euclid Contest

> Canonical facts page for LLMs and citation crawlers. Human-readable page: https://olympiads.co.uk/event/cemc-university-of-waterloo/euclid-contest

## Core facts

- **Organiser:** Centre for Education in Mathematics and Computing (University of Waterloo) (https://olympiads.co.uk/organisation/cemc-university-of-waterloo)
- **Subjects:** Mathematics
- **Age groups:** Senior
- **Activity type:** Competition
- **Format:** In-person
- **Entry route:** Schools order through CEMC
- **Entry badges:** school_entry, open_entry, written_solutions
- **Qualification note:** Euclid does not qualify students for CMO, CJMO, APMO or EGMO. Those invitations come from CMS contests, chiefly COMC.

## Dates

- **Next/representative edition start:** 2027-04-06
- **End date:** 2027-04-07

### Key stages

- Order deadline — deadline 2027-03-11
- Euclid — from 2027-04-06

## URLs

- **Official website:** https://cemc.uwaterloo.ca/contests/euclid
- **Registration:** https://cemc.uwaterloo.ca/contests/euclid
- **Olympiads.co.uk page:** https://olympiads.co.uk/event/cemc-university-of-waterloo/euclid-contest
- **This facts page:** https://olympiads.co.uk/ai/events/cemc-university-of-waterloo/euclid-contest.md

## Summary

The Euclid Contest is the University of Waterloo CEMC’s longest school maths paper: ten questions in 2.5 hours, 100 marks, mixing short answers and full solutions. Many Canadian universities look at Euclid results for admissions. It is not a qualifier for the Canadian Mathematical Olympiad — that pathway runs through CMS’s COMC.

## Context

Waterloo’s flagship senior paper — ten questions in 2.5 hours. Not a CMO qualifier.

## Related competitions

- https://olympiads.co.uk/event/cemc-university-of-waterloo/canadian-senior-mathematics-contest
- https://olympiads.co.uk/event/cemc-university-of-waterloo/hypatia-contest
- https://olympiads.co.uk/event/canadian-mathematical-society/canadian-open-mathematics-challenge

## Guidance

### Parent advice

Euclid is a university-admissions paper, not the Canadian olympiad. Students aiming at IMO should sit COMC in the autumn as well. Younger students may write Euclid.

### Student advice

Write complete solutions where asked. Do not assume a strong Euclid result invites you to CMO — it does not.

### Teacher advice

2027 date 6 April in the Americas, 7 April elsewhere. Order deadline 11 March. CAD $18 per participant plus order/shipping charges.

## How to prepare

- Work through past Euclid papers under 2.5-hour conditions
- Practise writing complete solutions, not only answers

## Data provenance

- **Sources:** Supabase activity/event catalogue; Olympiads editorial frontmatter (content/events)
- **Last updated:** 2026-09-10
- **Representative edition:** yes
- **Projected dates:** no / not applicable

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