On this Day in Formula 1: Mansell seals Williams crown, Piastri crumbles in Baku

September 21 has historically shaped the Formula 1 landscape with several major championship moments. In 1986, Nigel Mansell won the Portuguese Grand Prix to secure the Constructors' Championship for Williams, while Ayrton Senna ran out of fuel on the final lap. In 1997, Jacques Villeneuve won the Austrian Grand Prix from pole position, capitalizing on an engine failure for early race leader Jarno Trulli.

In more recent history, Lewis Hamilton won the 2014 Singapore Grand Prix from pole after Mercedes teammate Nico Rosberg retired with technical issues. Additionally, at the 2025 Azerbaijan Grand Prix, Max Verstappen controlled the race from pole to win for Red Bull, while championship leader Oscar Piastri suffered a disastrous race by jumping the start and crashing on the opening lap.