Three qualification rounds - the USACO First, Second, and Third rounds - will be used to select MCO 2026 participants.
Rules
See the USACO page for rules. USACO is very strict with their rules, so be sure to read them carefully.
If you are disqualified from USACO, you are automatically disqualified from the IOI 2026 selection. You may be disqualified from all future selections as well.
Key Dates
- First Contest: 9-12 Jan 2026
- Second Contest: 30 Jan-2 Feb 2026
- Third Contest: 20-23 Feb 2026
Scoring
The score of a round is given by (division bonus) + (contest score). Division bonus is defined as follows:
| Division | Division Bonus |
|---|---|
| Bronze | 0 |
| Silver | 1000 |
| Gold | 2000 |
| Platinum | 3000 |
Results
TBA