Aramco STEM Racing World Finals 2025 vs Regeneron ISEF 2026

Comparing two highly competitive STEM opportunities. Both are competitions for high school students.

Aramco STEM Racing World Finals 2025 Regeneron ISEF 2026
Prestige Tier Tier 2 — Highly Competitive Tier 1 — Elite
Type Competition Competition
Organization STEM Racing Regeneron
Acceptance Rate Roughly 1,700 finalists are selected from 365 affiliated fairs worldwide. Getting to ISEF requires first winning regionally, which itself is competitive. Estimated <1% of all science fair participants globally reach ISEF. At the ISEF itself, approximately 600 of the 1,700 finalists (~35%) receive some award.
Applicants Millions of students compete in science fairs globally each year; approximately 1,700–1,800 reach ISEF as finalists
Deadline Rolling
Cost to Apply $0 Free
US Only No / International No / International
Grades Grades 9–12 (high school students only; middle schoolers compete in the separate Junior Innovators Challenge)
College Impact ISEF finalist status is one of the most powerful extracurricular credentials in college admissions. Being named an ISEF finalist (simply qualifying) is Tier 1 on most admissions frameworks. Grand Awar...