Regeneron Science Talent Search vs Canadian Computing Competition (CCC)

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

Regeneron Science Talent Search Canadian Computing Competition (CCC)
Prestige Tier Tier 1 — Elite Tier 2 — Highly Competitive
Type Competition Competition
Organization Society for Science Centre for Education in Mathematics and Computing (CEMC), University of Waterloo
Acceptance Rate Approximately 0.2-0.3% (2% of ~2,000 applicants become Top 40 finalists; 15% become Top 300 scholars). Highly selective with ~2,000 projects submitted annually. Not publicly disclosed; appears to be high participation (designed as accessible competition) but very selective for CCO (~20 top Canadian participants) and CIW (select top female-identifying/non-binary participants)
Applicants Approximately 2,000 projects submitted per year; historically 147,000 students have competed since 1942 Not disclosed publicly; CEMC reports it as 'the largest outreach organization in Canada' with 60+ years of experience, suggesting substantial participation
Deadline 2026-11-05 Rolling
Cost to Apply Free $0
US Only Yes No / International
Grades High school seniors only Grades 7-12 (secondary school students)
College Impact Regeneron STS is considered one of the most prestigious high school science competitions and carries significant weight in college admissions, particularly for top-tier universities (Ivy League, MIT, ... The CCC and especially CCO/IOI participation are highly valued in university admissions, particularly for computer science and engineering programs. University of Waterloo, a top CS program globally, ...