Hanoi FC suffered a surprising 2-1 home defeat to Ninh Binh FC in the Vietnam National Champion League on October 18, 2025. The result at Hang Day Stadium was a significant upset, as the visiting side from Ninh Binh secured a vital three points in their battle against relegation, stunning one of the league's traditional powers. Ninh Binh FC took a shock lead early in the match, capitalizing on a defensive error from the hosts. Hanoi FC, despite dominating possession, struggled to break down a resolute Ninh Binh defense and found themselves two goals down after a swift counter-attack just after halftime. A late consolation goal from Hanoi set up a tense finish, but Ninh Binh held firm to claim a memorable victory. This loss was a major setback for Hanoi FC's title aspirations, while providing a massive boost to Ninh Binh's survival hopes.