USA Biology Olympiad (USABO) 2025

The USA Biology Olympiad (USABO) is a national academic biology competition for high school students in the United States. It consists of online open and semifinal exams administered via the Art of Problem Solving (AoPS) platform and concludes with an in-person National Final. Top performers are recognized with certificates and may be selected to represent the United States at the International Biology Olympiad (IBO).

Certificates of recognition for top performers; opportunity to advance through rounds and potential selection to represent the United States at the International Biology Olympiad (IBO).

High school students in the United States are eligible to participate.

Schools register and pay a registration fee. Specific registration windows and payment deadlines apply.