USAAIO Home
Announcements and news, and the index for everything below.
Open resourceUSAAIO links
Rules, syllabus, past problems, registration, and current dates.
Links
Competition Rules
Eligibility, round structure, proctoring, and conduct requirements.
Open resourceUSA-NA-AIO Syllabus
The topic list used to organize this guide.
Open resourcePast Problems
Round 1 and Round 2 problem archives.
Open resource2027 USA-NA-AIO
Current-season dates, registration, and logistics.
Open resource