OPHO Home Page

The Online Physics Olympiad (OPhO) is an annual team based physics competition for both high school students and undergraduates of all levels. Originally inspired by the Online Physics Brawl, the competition started in 2020, and thousands of participants from around the world has participated since. Teams of up to three will compete in the open round and invitational round.

The 2023 open contest will take place from July 22-24 and the 2023 invitational contest will take place from August 5-6.

Register for the 2023 OPhO here


Invitational Portal

Enter the invitational portal to view the paper. Opens July 30, 12 am UTC

Invitational Rankings

The invitational rankings have been released. View them here.

Invitational Rankings


See previous year's problems, solutions, and results.

Meet the team!

Meet the team who made OPhO possible!

See Team


It is only with the help of our sponsors that we are able to run our event and provide prizes. Last year, hundreds of teams competed with students from over 40 countries!

Here's a sneak peak at some of our prizes: