International Mathematical Olympiad (IMO)
The oldest and most prestigious pre-university math olympiad; students qualify through their national math olympiad and represent their country at the IMO.
Sourced from the official program page. Where a field says Not confirmed, we couldn't verify it — check the official site before applying.
- Location
- Rotates by host country
- Duration
- 2-day exam + travel
- Deadline
- National selection: fall
- Grades
- 9, 10, 11, 12
- Format
- in-person
- Cost
- Free
How to think about programs like this.
This guidance is general and may not reflect this program's exact selection process. Always confirm details on the official program page before applying.
What this program actually is
International Mathematical Olympiad (IMO) is a competition run by IMO Foundation. It's built for 9th grade–12th grade students who want to work in person alongside IMO Foundation on work in Math.
The program runs for 2-day exam + travel, based out of Rotates by host country. There's no cost to participate — the program covers what it needs to.
Who it's for
Programs like this get the strongest applications from students who can point to a specific reason they want this one — not just "any research program" or "any internship."
- Students in 9th grade–12th grade — check the official page for exact grade cutoffs before applying.
- Priority or eligibility for students in: INTL. Some programs still take out-of-state applicants; read the fine print.
- Strongest fit for students already curious about: Math. You don't need prior formal experience — curiosity beats credentials.
Typical day-to-day in programs like this
The following describes what participants generally do in competitions of this shape — not a confirmed schedule for International Mathematical Olympiad (IMO). Always check the official program page for the actual activities.
- Build or write a submission on your own timeline — the competition is the application.
- Get feedback from judges and, at some stages, from peers and mentors.
- If you place, you'll have a concrete, external validation you can put on any future application.
How to apply well
Selection is competitive but not unrealistic. A thoughtful application usually beats a decorated one.
- Start with the deadline: National selection: fall. Work backwards — most students underestimate how long recommendations and essay drafts take.
- Read the official page twice before writing anything. Note the exact prompts and word counts.
- Answer the actual question. Reviewers read hundreds of essays; specificity beats polish.
- Submit at least 24 hours before the deadline. Portals crash. Files fail to upload. Give yourself the buffer.
Cost, funding & logistics
Cost and logistics kill more applications than eligibility does. Sort these out before you get emotionally invested.
- Format: In person in Rotates by host country.
- Duration: 2-day exam + travel.
- There's no cost to participate — the program covers what it needs to.
- If travel or housing is required and cost is a concern, email the program directly and ask what aid is available. Programs rarely publish everything they can offer.
After the program
The most valuable thing you leave International Mathematical Olympiad (IMO) with is usually not the credential — it's the two or three people you met and the one concrete thing you made. Keep in touch with your mentors and peers; they're the beginning of a professional network in Math.
Add the program to your resume, but also write down (for yourself) what specifically you learned, what you'd do differently, and what question you now want to answer next. That reflection is what turns a summer into a direction.
Atlas guidance is written from public information about programs in this category. It is not a promise about International Mathematical Olympiad (IMO)'s actual selection process.
More like this.
Explore the Finder →AIME
Invitational round for top AMC scorers. 15-question, 3-hour exam that gates the USAMO. No fee for invited students.
AMC 10/12
The entry-level American Mathematics Competition. Top scorers qualify for AIME and the path to the USAMO. Open to all US high schoolers; school registration required.
American Mathematics Competitions (AMC 8/10/12)
Series of national math competitions leading to USAMO/USAJMO and IMO selection.