Online Physics Olympiad (OPhO)
Who can apply: Teams of up to three high school or undergraduate students, from any country
Cost and deadline
Checked against the provider's page in Sep 2026.
Who can apply
About this program
A free, student-run team physics competition with olympiad-level problems. Since 2020 it has drawn more than 10,000 competitors from over 80 countries. The 2026 contest was one round over a weekend, with short-answer, long-answer and simulation experiment problems. Past papers, solutions and standings are posted on the site, which makes it good practice for the Canadian Physics Olympiad.