|
Youth International Math Olympiad
Build real mathematical skills, prove what you can do on a world stage, and join a community of driven STEM students.
About YIMO
The Youth International Math Olympiad (YIMO) is a free, online math competition. It exists to give overlooked talent a rigorous proving ground: a place to sharpen problem-solving skills, demonstrate ability on an international stage, and build the quantitative foundation every AI and ML builder needs - the math that underpins modern AI is the math tested here.
YIMO features individual rounds with meaningful recognition for every level of achievement. Open to all students worldwide, free to enter. Registration closes May 17th at 11:59 PM EST.
Who Can Compete
Open to all ages worldwide. Free to enter. No prior experience required.
Competition Format
Division 1 - Advanced
Early AIME to high AIME level
- 20 questions: 10 MCQ + 10 AIME-type integer answers (000-999)
- Top 8 scorers advance to Final Round: 2 computational + 2 proof problems (High AIME - AMO level)
Scoring
Division 2 - Beginner
AMC-10 to early AIME level
- 20 questions: 10 MCQ + 10 AIME-type integer answers (000-999)
- Top 8 scorers advance to Final Round: 3 computational + 1 proof problem (Early AIME - Mid AIME level)
Scoring
Exam Windows
One window per contestant. Choose the window that works best for your time zone.
Window A
Saturday, May 24 · 8:00 PM EST
American & Asia-friendly (Sunday morning in Asia)
Window B
Sunday, May 25 · 11:00 AM EST
Europe & American-friendly (evening in Europe)
Prizes & Awards
Written Test
Final Round (Countdown)
Division 2 has fewer prizes than Division 1.
Participant Geography
Where our registrants are from.
Get Involved
YIMO is currently in development. Want to help run it? We're looking for problem writers, graphic designers, workshop designers, and volunteer proctors.
Join the Team