United States · USACO
United States · USACO
From national selection to IOI
USACO has four divisions, Bronze, Silver, Gold and Platinum; year-round performance feeds training camp and national team selection. Open online contests are separate from training camp and team eligibility; the rules allow C/C++/Java/Python, but a full score in Python at higher divisions is not guaranteed to be feasible.
Route at a glance
- Organizer
- USACO
- Season / version
- 2025/26 current page; next season not yet verified
- Checked
- 2026-10-14
- Stages
- Bronze → Silver → Gold → Platinum → Training Camp → IOI Team → IOI
Stages and transitions
- Bronze
- Silver
Division promotion · From Bronze：Per this season's division promotion rules; cross-season retention is not promised
- Gold
Division promotion · From Silver：Per this season's division promotion rules; cross-season retention is not promised
- Platinum
Division promotion · From Gold：Per this season's division promotion rules; involves certified score requirements
- Training Camp · Year-round results
Selection / invitation · From Platinum：Combines year-round results, certified scores and selection eligibility; reaching a division does not automatically admit you to camp
- IOI Team · National team
Selection / invitation · From Training Camp：Both training selection and identity eligibility must be met
- IOI · International contest
Representing the country · From IOI Team：The national organization sends a delegation to IOI; domestic selection is arranged by each organization
Unverified or country-specific entries are not drawn as required stages; the sources are summaries of the ordinary main path.
What this route verifies
- USACO has four divisions, Bronze, Silver, Gold and Platinum; year-round performance feeds training camp and national team selection.
- Open online contests are separate from training camp and team eligibility; the rules allow C/C++/Java/Python, but a full score in Python at higher divisions is not guaranteed to be feasible.
Eligibility and language limits
- Gold and Platinum have special certified score requirements; promotion and cross-season retention rules depend on the season.
- Training camp and US team selection require both results and identity eligibility; reaching a division does not automatically admit you.
Still to verify
- New-season eligibility and retention
- Round runtime and scoring
- Reuse limits for past tasks and translations
Related practice
- USACO Bronze — C++ foundations and algorithm practice for learners preparing for USACO Bronze in the United States and internationally.
- USACO Silver — Search, greedy and data-structure preparation for USACO Silver.
- USACO Gold — Dynamic programming, shortest-path and connectivity preparation for USACO Gold.
These are site-designed preparation scopes, not official exam items or complete mocks.
Frequently asked questions
Where does the USACO pathway end?
The final node is IOI: the national organization sends a delegation, and domestic selection is arranged by each organization.
Does this route establish participation or national-team eligibility?
No. The page only organizes the verified main path; participation, official ranking, training camp and national team eligibility are verified separately and follow the official notice for the current year.
What is still unverified?
New-season eligibility and retention; Round runtime and scoring; Reuse limits for past tasks and translations.
Sources
Links point to organizers or official sources; InfoCode does not replace official eligibility decisions.