Formula 1 1991 3 1991-04-28 1991-04-28 https://r2.thesportsdb.com/images/media/event/thumb/bpyay41751981077.jpg https://r2.thesportsdb.com/images/media/event/poster/1iolvl1751918698.jpg The 1991 San Marino Grand Prix was a Formula One motor race held at Imola on 28 April 1991. It was the third race of the 1991 Formula One World Championship. The 61-lap race was won by Brazilian Ayrton Senna, driving a McLaren-Honda, after he started from pole position. His Austrian teammate Gerhard Berger finished second, with Finn JJ Lehto third in a Dallara-Judd. It was also McLaren's first 1-2 finish since the 1989 Belgian Grand Prix. The formation lap saw two dramatic incidents: Prost spun off the track at Rivazza Turn, followed by Berger, who was able to continue. However Prost stalled the engine and did not take the start. 505913