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
- 10, 11, 12
- Format
- in-person
- Cost
- Free
A general prep list — the official program page is always the source of truth. Your ticks are saved on this device only.
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.
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.
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.