International Physics Olympiad vs WRO International Final

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

International Physics Olympiad WRO International Final
Prestige Tier Tier 1 — Elite Tier 2 — Highly Competitive
Type Olympiad Olympiad
Organization International Physics Olympiad Organization World Robotics Olympiad (WRO)
Acceptance Rate Extremely selective. Only 5 students per country advance (approximately 400-420 students total compete at IPhO from 80+ countries). At national level, typically 0.01-0.1% of secondary students reach IPhO depending on country. 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 Varies dramatically by country. China, Russia, USA, South Korea, India, and Taiwan have thousands of competitors in national rounds. Globally, estimated 100,000+ students compete in preliminary rounds across all participating countries. 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 $0 $0
US Only No / International No / International
Grades Secondary school students (typically grades 10-12, though exact definitions vary by country) 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 prestigious for college admissions. IPhO medals (especially gold) are among the most respected accomplishments in high school physics competitions and are viewed extremely favorably by: (1)... 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...