International Physics Olympiad vs International Mathematical Olympiad

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

International Physics Olympiad International Mathematical Olympiad
Prestige Tier Tier 1 — Elite Tier 1 — Elite
Type Olympiad Olympiad
Organization International Physics Olympiad Organization IMO Official
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 competitive; approximately 0.01-0.1% of high school students worldwide reach IMO. For USA: ~6 students selected from 300,000+ AMC participants annually
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. Approximately 5,000-6,000 contestants from 100+ countries compete at IMO annually. USA sends 6 representatives from ~300,000 AMC 10/12 participants
Deadline
Cost to Apply $0 Free
US Only No / International No / International
Grades Secondary school students (typically grades 10-12, though exact definitions vary by country) High school students only; typically grades 9-12 (ages 13-19)
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)... 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...