Regeneron ISEF Awards vs International Physics Olympiad

Comparing two highly competitive STEM opportunities. Regeneron ISEF Awards is a competition while International Physics Olympiad is a olympiad.

Regeneron ISEF Awards International Physics Olympiad
Prestige Tier Tier 2 — Highly Competitive Tier 1 — Elite
Type Competition Olympiad
Organization Society for Science International Physics Olympiad Organization
Acceptance Rate Approximately 1,600-1,700 finalists compete at ISEF annually out of significantly larger pool competing at 365+ affiliated fairs; roughly 600 finalists receive awards/prizes (37.5% of finalists awarded) 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.
Applicants Over 1,600 finalists selected annually from 365 Society-affiliated fairs across 60+ countries and territories; total number competing at all affiliated fairs globally is much larger (tens of thousands) 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.
Deadline
Award $7,000,000
Cost to Apply Free $0
US Only No / International No / International
Grades 9th through 12th grade (high school students) Secondary school students (typically grades 10-12, though exact definitions vary by country)
College Impact Reaching Regeneron ISEF as a finalist is extremely prestigious in college admissions and carries significant weight. Top colleges (Ivy League, Stanford, MIT, etc.) view ISEF participation highly favor... 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)...