Question 1

Who has won the most F1 races at Phoenix street circuit?

Accepted Answer

Ayrton Senna is the most successful driver at Phoenix street circuit with 2 Grand Prix wins.

Question 2

How many F1 races have been held at Phoenix street circuit?

Accepted Answer

3 World Championship Grands Prix have been held at Phoenix street circuit, from 1989 to 1991.

Year	Grand Prix	Winner	Constructor
1991	United States Grand Prix	BRAAyrton Senna	McLaren
1990	United States Grand Prix	BRAAyrton Senna	McLaren
1989	United States Grand Prix	FRAAlain Prost	McLaren