Youth International Math Olympiad
YIMO
📌 About the Program
The Youth International Math Olympiad (YIMO) 2026 is a free, global online mathematics competition organized by STEMise and NXT Horizon. Designed for middle and high school students, YIMO provides a platform featuring clean problems, fair evaluation, and a competitive ladder ranging from AMC 10 levels up to advanced AIME and proof-based problems.
🗓️ Program Details & Schedule
- Registration Closes: August 27, 2026 at 23:59 EST
- Parental Consent Form Deadline: August 27, 2026 at 23:59 EST
- Exam Dates: August 29 – August 30, 2026
- Contest Windows (Choose 1):
- Window A: August 29, 2026 at 21:30 EST
- Window B: August 30, 2026 at 11:00 AM EST
- Registration Fee: Free (No entry fee)
- Mode of Conduct: Online Individual Examination
- Organizing Bodies: STEMise & NXT Horizon
- Partners & Sponsors: HRT (Hudson River Trading), AoPS (Art of Problem Solving), USAMOguide, Saintly, USAEO, PiMath, Solvefire, and Euler Circle
- Community & Support: Official YIMO Discord Server
🎯 Divisions & Competition Format
- Competition Divisions:
- Division 2 (Beginner / Rising Stars): AMC 10 to early AIME level. Built for students developing contest rhythm without requiring prior olympiad experience.
- Division 1 (Advanced / High Achievers): Early AIME to high AIME level. Designed for experienced competition problem solvers.
- Main Round: 20 written problems with integer/multiple-choice answers evaluated via an open scoring guide.
- Final Round: The top 8 students in each division advance to a sharper final round consisting of computational and proof-style problems.
💰 Prizes, Recognition & Benefits
- Prize Pool: $1,100+ total cash prize pool awarded to top performers.
- Award Tiers:
- Gold Certificate: Awarded to the Top 10%
- Silver Certificate: Awarded to the Top 20%
- Bronze Certificate: Awarded to the Top 30%
- Global Standing: Opportunity to benchmark mathematical problem-solving skills against peers internationally.