# Canadian Open Mathematics Challenge (COMC)

A national math competition in Canada for high school students that challenges problem-solving skills and serves as a qualifier for advanced contests.

## Key facts

| Field | Value |
| --- | --- |
| Organization | Canadian Mathematical Society |
| Category | stem |
| Cost | Free |
| Deadline | 2026-10-29 (verified 2026-07-04) |
| Eligibility | Grades 9–12 |
| Format | Hybrid (in person + online) |
| Location | Check official site |
| Apply | https://www.cms.math.ca/ competitions/comc/ |

## About this program

The **Canadian Open Mathematics Challenge (COMC)** is a national mathematics contest organized by the Canadian Mathematical Society for secondary school students. It is typically written in early November and features challenging problems that test creative problem-solving, logical reasoning, and mathematical insight beyond the standard school curriculum.

The contest is open primarily to high school students (and some advanced middle school students) in Canada, and is often written at schools under teacher supervision or through approved testing centers. Top-scoring students may be invited to participate in more advanced contests and selection stages leading toward the **Canadian Mathematical Olympiad (CMO)** and, ultimately, Canada’s team for the **International Mathematical Olympiad (IMO)**. Participating in COMC helps students deepen their mathematical understanding, build competition experience, and strengthen their academic profile for university applications.

## Frequently asked questions

### How much does Canadian Open Mathematics Challenge (COMC) cost?

Canadian Open Mathematics Challenge (COMC) is completely free — there is no participation fee. Costs like travel or optional materials may still apply; check the official site for details.

### What is the application deadline for Canadian Open Mathematics Challenge (COMC)?

The application deadline is October 29, 2026 (deadline last verified July 4, 2026). Always confirm on the program's official site, as dates can shift between cycles.

### Who is eligible for Canadian Open Mathematics Challenge (COMC)?

Canadian Open Mathematics Challenge (COMC) is open to high school students in grades 9–12. Some programs have additional requirements (GPA, coursework, essays, or recommendations) — the full criteria are on the official site.

### Is Canadian Open Mathematics Challenge (COMC) online or in person?

Canadian Open Mathematics Challenge (COMC) is a hybrid program with both online and in-person components.

### How do I apply to Canadian Open Mathematics Challenge (COMC)?

Apply directly through Canadian Mathematical Society's official website. ExtracurricularHub links to the official application — we list and verify programs but don't process applications.

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Last updated: 2026-07-04.
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