IMO OlympiadNATIONAL SELECTION · INTERNATIONAL IMOFind your path ↗
National selection, past papers and results
A WORLD OF MATHEMATICAL THINKING

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149 delegation referencesFour core fieldsOfficial sources
THE OLYMPIAD JOURNEY01 — ∞
Triangle inscribed in a circle, an illustration of mathematical explorationABCOexplore · conjecture · prove
01National rounds
02Team selection
03The IMO

One international stage. Many national pathways. Students reach the IMO through their country’s recognised selection programme.

How the IMO works
START WHERE YOU ARE

Find your country’s selection process.

Worldwide country finder

Find the right competition, understand each selection stage and follow the official application route.

BR
Americas

Brazil

Qualifying awards → selection tests

JP
Asia

Japan

JMO → final → selection camp

ZA
Africa

South Africa

SAMO rounds → camps → selection

DE
Europe

Germany

National competitions → selection exams

IN
Asia

India

IOQM → RMO → INMO

AU
Oceania

Australia

AMT competitions → Olympiad programme

Past papers and previous results

Choose a practice paper

Official collections by country, competition and stage.

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Look up results

Country records, national announcements and IMO medal boundaries.

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THE MATHEMATICS BEHIND THE JOURNEY

What to study for Maths Olympiads.

Full syllabus
01

Algebra

Patterns, equations and the art of a useful transformation.

Explore guide 02

Number theory

Explore the structure hidden inside the integers.

Explore guide 03

Geometry

Turn a diagram into a chain of precise ideas.

Explore guide 04

Combinatorics

Count, construct and discover what must be true.

Explore guide

The skill that connects everything: proof.

Learn to turn a promising idea into a complete mathematical argument.

Learn proof-writing ↗
KNOW THE COMPETITION

The international exam format.

Explore the format ↗
6Proof problems
2Competition days
4½Hours each day
42Maximum marks

Source: Official IMO regulations. Preparation is about ideas, persistence and clear reasoning.

KEEP YOUR NEXT STEP CURRENT

Entry deadlines and selection updates.

Check entry deadlines ↗
USA · 2027

AIME arrangements are changing

MAA announces computer-based testing at Pearson centres, an age minimum of 13, fixed qualifying thresholds and a revised USAMO/USAJMO qualification approach. Read the complete annual policy.

Explore guide AUSTRALIA · FROM 2026

A revised Olympiad programme

AMO now includes Summer, Winter and Finals competitions. Team Selection Tests use state examination hubs; older pathway diagrams may be outdated.

Explore guide CANADA · 2026

CMOQR has been discontinued

The COMC guide confirms the removal of the CMO Qualifying Repêchage. Follow current CMS invitation information.

Explore guide

IMO 2027 in Budapest

The next international edition is scheduled for 16–26 July 2027. Selection begins at home, through the national programme.

Dates, eligibility and how to qualify →

BEGIN WITH A GOOD QUESTION

Start with your next competition.

Check the syllabus, attempt a released paper, and review what you need to learn.

Build your preparation plan ↗

Not sure where to begin?

Find an entry route, even if your school does not participate · Try the first proof practice plan · Look up national-round results

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