Olympiad information

Registration open Sept. 14, 2025
Results in personal accounts Nov. 20, 2025
Appeal date Nov. 21, 2025
Total results and the list of winners Nov. 24, 2025

First round information

Start day Oct. 12, 2025, 4 p.m. NOVT (UTC+7)
End date Oct. 12, 2025, 8:30 p.m. NOVT (UTC+7)

Second round information

Start day Oct. 13, 2025, 4 p.m. NOVT (UTC+7)
End date Oct. 20, 2025, 4 p.m. NOVT (UTC+7)