      BR (Jacarepagua), 23-3: Nelson Piquet, Williams-Honda 
      E (Jerez), 13-4: Alain Prost, McLaren-TAG Porsche 
      RSM (Imola), 27-4: Ayrton Senna, Lotus-Renault 
      MC (Monte Carlo), 11-5: Alain Prost, McLaren-TAG Porsche 
      B (Spa-Francorchamps), 25-5: Nigel Mansell, Williams-Honda 
      CDN (Montreal), 15-6: Nigel Mansell, Williams-Honda 
      Detroit (Detroit), 22-6: Ayrton Senna, Lotus-Renault 
      F (Le Castellet), 6-7: Nigel Mansell, Williams-Honda 
      GB (Brands Hatch), 13-7: Nigel Mansell, Williams-Honda 
      D (Hockenheim), 27-7: Nelson Piquet, Williams-Honda 
      H (Hungaroring), 10-8: Nelson Piquet, Williams-Honda 
      A (sterreichring), 17-8: Alain Prost, McLaren-TAG Porsche 
      I (Monza), 7-9: Nelson Piquet, Williams-Honda 
      P (Estoril), 21-9: Nigel Mansell, Williams-Honda 
      MEX (Hermanos Rodriguez), 12-10: Gerhard Berger, Benetton-BMW 
      AUS (Adelaide), 26-10: Alain Prost, McLaren-TAG Porsche 