Date varies - check official page

USACO Online Contests

USA Computing Olympiad

Open to all. International students compete and are RANKED, but as 'observers' Division promotion: Bronze -> Silver -> Gold -> Platinum

Official page Get help applying

At a glance

Organisation: USA Computing Olympiad
Type: Olympiad / Competition
Field: Computer Science / Competitive Programming
Location: United States (Organizer) / Worldwide
Mode: Online
Duration: 4 contests, Dec/Jan - Mar
Applications open: Register any time - free account
Deadline: 2026-27 season dates TBC (~Nov). 2025-26 ran Jan 9-12, Jan 30-Feb 2, Feb 20-23, US Open Mar 28

Eligibility

Who can apply: Open to all. International students compete and are RANKED, but as 'observers'
Qualification: Programming in C++, Java, Python or C
Open worldwide: Yes
Language: English
Individual or team: Individual

Cost and funding

Funding: Free
Stipend / prize: Division promotion: Bronze -> Silver -> Gold -> Platinum
Certificate: Division standing (publicly verifiable)

Applying

Selection process: Rolling promotion by score within each contest
Where to apply: usaco.org

Details are taken from the organiser's official listing, last checked 17 Aug 2026. Confirm dates and requirements on the official page before applying — organisers change them without notice.

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