Overview
The Olimpiada Nacional de Matemática is Chile's national mathematics problem-solving contest for school students. It is organised by the Sociedad de Matemática de Chile with a commission of university mathematicians, and its aims are to encourage mathematics and to find talented young people who can be offered wider scientific opportunities. Chilean students selected through it can go on to international olympiads.
Who can take part
Students in primary and secondary school (Ensenanza Basica and Media) can take part. Schools register their students through the official website. Students are placed in a level by age on December 31 of the previous year.
Levels or stages
Levels
| Level | Age |
|---|---|
| Menor | Under 13 |
| Medio | 13 and over, under 16 |
| Mayor | 16 and over |
Stages
Training tests: optional online practice tests. In 2026 there were four, on July 11 and 18 and August 1 and 8.
Prueba Nacional (national test): taken in person at regional centres. In 2026 it was on August 22, from 3:00 to 6:00 pm.
Final: held in person in Santiago. In 2026 it was on October 22 to 24.
Selectivos: selection rounds for international competitions.
Important dates
For the 38th Olympiad in 2026, school registration closed on August 8, 2026. Online tests use the student's national ID number (RUT) as login.
Marking and results
Medals are awarded in each level as gold, silver and bronze.
How to apply
Schools register through the platform on olimpiadadematematica.cl. The site does not state a registration fee in the material checked.
Preparation tips
Use the four online training tests and past papers on the official site to get used to the problem style before the national test.
Can I register as an individual?
Registration is done by schools through the official platform; ask your school to register you.
How is my level decided?
By your age on December 31 of the previous year: under 13 is Menor, 13 to under 16 is Medio, and 16 or older is Mayor.