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Important Dates & Deadlines
For Participating and Observer Countries
15 March 2025
Intent to Participate
30 April 2025
Number of Participants
30 April 2025
Number of Participants
30 April 2025
Number of Participants
30 April 2025
Number of Participants
31 October 2025
Nominating Team Leaders
10–19 July 2026
Olympiad Dates
IChO 2026 – Tashkent