The 80-lap race was won from pole position by Alain Prost. The March of Mauricio Gugelmin went sideways into Thierry Boutsen's Williams and catapulted into the air. The race was red-flagged and the race was restarted half an hour later.
Gerhard Berger surged to victory in the Portuguese Grand Prix. Ayrton Senna retired following a collision with Nigel Mansell three laps after the Briton had received a disqualification for reversing in the pit lane.
The 73-lap race was won from pole position by Ayrton Senna and Alain Prost was third. Nigel Mansell was banned from the race and fined $50,000 following his disqualification and collision with Senna in the previous race.
