International Mathematical Olympiad vs WRO International Final

Comparing two elite STEM opportunities. Both are olympiads for high school students.

International Mathematical Olympiad WRO International Final
Prestige Tier Tier 1 — Elite Tier 2 — Highly Competitive
Type Olympiad Olympiad
Organization IMO Official World Robotics Olympiad (WRO)
Acceptance Rate Extremely competitive; approximately 0.01-0.1% of high school students worldwide reach IMO. For USA: ~6 students selected from 300,000+ AMC participants annually Extremely selective and highly competitive. Only ~500 teams qualify for International Final from 32,000+ total teams competing globally (approximately 1.5% acceptance rate to International Final). However, acceptance into national competitions is typically open to all registered teams.
Applicants Approximately 5,000-6,000 contestants from 100+ countries compete at IMO annually. USA sends 6 representatives from ~300,000 AMC 10/12 participants 100,000+ students participate annually in WRO competitions worldwide across 100+ countries and 32,000+ teams (2025 figures). National competition participation varies significantly by country.
Deadline
Cost to Apply Free $0
US Only No / International No / International
Grades High school students only; typically grades 9-12 (ages 13-19) High school students (ages 14-19 for most categories). Future Engineers and RoboSports are 14-19 years old. RoboMission and Future Innovators have elementary (8-12), junior (11-15), and senior (14-19) divisions.
College Impact Extremely positive and highly prestigious. IMO medalists (especially gold) are exceptionally rare and highly valued by top universities globally. Impact includes: (1) Gold/Silver medalists essentially... WRO International Final qualification is a prestigious achievement in college admissions for STEM-focused schools. Reaching the International Final demonstrates exceptional technical skills, problem-s...