Prost led off the start from Senna, Berger, Piquet, and Mansell in his last race for
Williams before joining Ferrari in 1989. By lap 4, Prost's lead over Senna was 5.5 seconds, with Berger close behind the Brazilian.
Michele Alboreto's last race for Ferrari ended in retirement shortly after the start, when he collided with
Alex Caffi's
Dallara. Berger passed Senna on lap 5 at the Racetrack Hairpin, a tight second-gear right hander at the end of the Brabham Straight, and began a determined drive, catching and passing Prost at the same place on lap 14. He had a three-second lead when he came up to lap
Stefano Modena in the
EuroBrun and
René Arnoux in the
Ligier on lap 23. Arnoux appeared to ignore his mirrors and the blue flags instructing him to let Berger past, causing the Ferrari's left front wheel to ride the Ligier's rear right wheel and send both cars into a spin. Berger retired immediately with suspension damage, putting Prost back into the lead with Senna second. Behind the McLarens, Piquet was maintaining third ahead of the Williams pair of Patrese and Mansell. The Italian opened a small gap on his teammate and closed on Piquet, making several attempts to pass the Brazilian. However, he spun on lap 53, letting Mansell past. The Englishman was no more successful in trying to pass Piquet, and he retired on lap 66 when his brakes failed and he spun into the wall. By lap 59 Prost was putting in a succession of fast laps, extending his lead to over 30 seconds and lapping the whole field up to the fifth-placed
Rial of
Andrea de Cesaris. On lap 46,
Pierluigi Martini spun his
Minardi at the chicane and was almost collected by
Stefan Johansson's Ligier.
Maurício Gugelmin slowed his
March to avoid the pair, only to be hit from behind by
Satoru Nakajima's Lotus, putting both cars out. This crash also had an effect on Prost who was the first car upon the scene. The McLaren ran over some debris which broke off part of the front wing end plate, causing the car to understeer for the rest of the race, though Prost was able to play with his car's onboard settings to compensate and would set the fastest race lap later in the race.
Alessandro Nannini spun his
Benetton;
Jonathan Palmer's
Tyrrell suffered transmission problems; and
Arrows drivers
Derek Warwick and
Eddie Cheever both suffered engine failures. Driveshaft trouble accounted for the EuroBruns of Modena and
Oscar Larrauri, while Caffi succumbed to clutch failure in his Dallara. At the finish, only eleven cars were classified, of which just seven saw the chequered flag: de Cesaris, Johansson and
Philippe Alliot's
Larrousse-
Lola all ran out of fuel in the closing laps, while
Philippe Streiff's
AGS suffered an electrical failure. Prost led home Senna in yet another McLaren 1–2, with Piquet third and Patrese fourth. De Cesaris' misfortune handed fifth place to
Thierry Boutsen in the Benetton despite a spin and a stuttering engine, with
Ivan Capelli taking the final point for sixth in his March despite a puncture. In the last race in which cars with
turbocharged engines were allowed to compete until , all three podium positions were taken by cars powered by Honda turbos. == Classification ==