The OAC is completely free to enter and open to all high school students worldwide.
The competition consists of a multiple-choice first round and a subjective, olympiad-style second round for top scorers.
Participate from anywhere in the world. All rounds are conducted online, making OAC accessible to all eligible students.
Along with problems written by IOAA medalists, portions of the competition focus on practical application and research - a unique opportunity to showcase your skills.