The 1989 United States Grand Prix was a Formula One motor race held in Phoenix, Arizona on June 4, 1989. It was the fifth race of the 1989 Formula One World Championship and the first United States Grand Prix to be held in Phoenix. Background In October 1988, officials in the city of Detroit, Michigan, refused to invest more money to bring the Detroit street circuit up to new Formula 1 regulations, and an attempt to move the circuit to a new circuit on Belle Isle, an island in the Detroit River, failed (although there was success for IndyCar's move to Belle Isle for 1992). This resulted in the cancellation of the Detroit Grand Prix for the 1989 season. City officials in Phoenix, Arizona, were interested in hosting a major sporting event to promote their city, and with Bernie Ecclestone desperate to retain a US race in the Formula 1 calendar, on January 13, 1989 the Phoenix City Council approved a five-year contract to promote and run the race. Because of the relatively short notice, the first race was scheduled for June 4, despite the weather in Phoenix typically being extremely hot in June. On the Thursday before qualifying, Formula Atlantic, the support category for the weekend, had the first practice session on the new track before the Formula One cars hit the circuit for pre-qualifying at 8 o'clock on Friday morning. The Formula Atlantic session saw a couple of problems: a manhole cover was lifted, and the track surface at turn 9 at the end of the back straight (Washington Street) had begun to break up in the same way Detroit and Dallas had done in the past. Overnight, quick-dry cement was used to patch up the broken surface and while dusty and bumpy, the cement held for the remainder of the weekend. Qualifying Pre-qualifying report A Brabham topped the pre-qualifying session time sheets for the fifth time this season as Martin Brundle was fastest. It was the same four pre-qualifiers as at the last event in Mexico, albeit in a different order, as Alex Caffi took second in the Dallara, Stefan Johansson was third in the Onyx, and Brundle's Brabham team-mate Stefano Modena was fourth. Those to miss out included Piercarlo Ghinzani, who was fifth in his Osella, and sixth-fastest Pierre-Henri Raphanel in the Coloni. Seventh was Gregor Foitek in the EuroBrun, ahead of the second Osella of