1991 United States Grand Prix
The 1991 United States Grand Prix (formally the XXVIII Iceberg United States Grand Prix) was a Formula One motor race held on March 10, 1991 in Phoenix, Arizona. It was the first race of the 1991 Formula One World Championship. The 81-lap race was won from pole position by Ayrton Senna, driving a McLaren-Honda, with Alain Prost second in a Ferrari and Nelson Piquet third in a Benetton-Ford.

The race marked the respective debuts of future double World Champion Mika Häkkinen and the Jordan team. It was also the first F1 World Championship race in which ten points were awarded for a win rather than nine, as part of a revised scoring system introduced for 1991. However, it was also to be the last United States Grand Prix until 2000, due to poor attendances.

In the two previous years, the championship had been decided when Senna and Prost tangled at Suzuka. In 1989, their collision as team-mates secured Prost's third World Championship; in 1990, with Prost driving for Ferrari and still in title contention, it handed Senna his second crown. Controversy regarding the nature of the 1990 incident had created great anticipation for the rematch.
Q1968
Formula One
EVE
Q16556
Phoenix, Arizona
LOC
Q69670
1991 Formula One World Championship
EVE
Q588596
pole position
UNK
Q10490
Ayrton Senna
PER
Q172674
McLaren
MISC
Q65961126
Honda
UNK
Q10494
Alain Prost
PER
Q172666
Ferrari
MISC
Q171346
Nelson Piquet
PER
Q2069908
Benetton
MISC
Q44294
Ford
LOC
Q172842
Mika Häkkinen
PER
Q171367
Jordan
MEDIA
Q596665
2000
EVE
Q174170
Suzuka
LOC
Q305652
1989
EVE
Q305665
1990
EVE
Q596592
1991 United States Grand Prix
EVE
1991-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1991
DATE
1991-03-10T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
March 10, 1991
DATE
1991-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1991
DATE
1991-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1991
DATE
2000-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2000
DATE
1989-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1989
DATE
1990-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1990
DATE
1990-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1990
DATE
+81^^http://www.w3.org/2001/XMLSchema#decimal
81
NUMBER
+1^^http://www.w3.org/2001/XMLSchema#decimal
1
NUMBER
point in time
part of
winner
event distance
point in time