The race settled down and nothing changed until lap 30 when Prost retired with a battery failure. Then Mansell hit the back of Boutsen and was forced to pit and changed his front wing. Patrese's distributor failed on lap 42. Behind, Mansell was charging through the field and passed Boutsen to take fourth. But then he was sidelined with the same problem as Prost. At the front, Senna won from Alesi, Berger, Boutsen, Alex Caffi in the Arrows and Éric Bernard's Larrousse.