1991 United States Grand Prix
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The 1991 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. Wikipedia
Date: March 10, 1991
Course: Temporary road course
Distance: 81 laps, 301.401 km (187.272 miles)
First: Ayrton Senna
Location: Phoenix street circuit and Phoenix