Study guide

Regeneron International Science and Engineering Fair (ISEF): 2025 IP Math & Physics Guide

In one line

Regeneron ISEF is described by Regeneron as the world’s largest high school STEM competition, and Society for Science states finalists compete across 22 categories for nearly US\$9 million in awards, prizes, and scholarships.

Key points

  • You can’t register directly: competing starts at a Society-affiliated fair (in Singapore, SSEF is affiliated to ISEF and selected winners represent Singapore at ISEF).
  • This guide points you to the official rules, awards, and judging criteria so IP projects can scale towards ISEF standards.

Last updated 26 Jan 2026

Chee Wei Jie
Reviewed by
Chee Wei Jie·Academic Advisor (Physics)

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  1. Build Your Research Pipeline
  2. 1 What exactly is ISEF?
  3. 2 Who gets to compete?
  4. 3 Categories and awards (official links)
Q: What does Regeneron International Science and Engineering Fair (ISEF): 2025 IP Math & Physics Guide cover?
A: What ISEF is, how finalists qualify via affiliated fairs (including Singapore’s SSEF), and where to find official rules, awards, and judging criteria.
TL;DR
Regeneron ISEF is described by Regeneron as the world’s largest high school STEM competition, and Society for Science states finalists compete across 22 categories for nearly US$9 million in awards, prizes, and scholarships.
You can’t register directly: competing starts at a Society-affiliated fair (in Singapore, SSEF is affiliated to ISEF and selected winners represent Singapore at ISEF).
This guide points you to the official rules, awards, and judging criteria so IP projects can scale towards ISEF standards.
If you have...Read this first
1 secondISEF entry starts through an affiliated fair.
10 secondsCheck SSEF route, affiliated fair rules, project category, judging rubric, research log, ethics forms, presentation, and official awards page.
100 secondsSingapore students should first build an SSEF-quality project, then use ISEF rules to raise the standard of research and presentation.
Concrete exampleA physics project needs strong execution and interview clarity, not only an impressive poster.
Best next stepRead the latest SSEF current-run page and ISEF international rules before starting experiments.

Status: Key official pages checked 2026-01-26; re-check the SSEF “current run” link for the latest Singapore dates.

Quick links: IP Physics hub,

Sources

  1. https://www.societyforscience.org/isef/
  2. https://www.societyforscience.org/isef/international-rules/
  3. https://www.societyforscience.org/isef/affiliated-fair-network/
  4. https://www.societyforscience.org/isef/grand-award/criteria/
  5. https://www.societyforscience.org/isef/awards/
  6. https://www.societyforscience.org/isef/categories-and-subcategories/all-categories/
  7. https://www.science.edu.sg/for-schools/competitions/singapore-science-and-engineering-fair
  8. https://www.regeneron.com/responsibility/fueling-stem-innovators/isef