1986 Grand Prix of Portugal
21 September - Estoril: 304.500km (4.350km x 70 laps)


Pole Position: Ayrton Senna, Lotus-Renault 98T, 1:16.673


Results
 1. Nigel Mansell          Williams-Honda FW11               1:37:21.900 (187.644 km/h)
 2. Alain Prost            McLaren-TAG MP4/2C               -     18.772
 3. Nelson Piquet          Williams-Honda FW11              -     49.274
 4. Ayrton Senna           Lotus-Renault 98T                -  1 lap
 5. Michele Alboreto       Ferrari F186                     -  1 lap
 6. Stefan Johansson       Ferrari F186                     -  1 lap
 7. René Arnoux            Ligier-Renault JS27              -  1 lap
 8. Teo Fabi               Benetton-BMW B186                -  2 laps
 9. Johnny Dumfries        Lotus-Renault 98T                -  2 laps
10. Thierry Boutsen        Arrows-BMW A8                    -  3 laps
11. Christian Danner       Arrows-BMW A8                    -  3 laps
12. Jonathan Palmer        Zakspeed 861                     -  3 laps
13. Allen Berg             Osella-Alfa Romeo FA1F           -  7 laps
    
Fastest lap: Nigel Mansell, 1:20.943 (193.469 km/h on lap 53)
    
    
Retirements    
    Patrick Tambay         Lola-Ford THL2                   -  8 laps
    Riccardo Patrese       Brabham-BMW BT55                 -  8 laps (Engine)
    Alessandro Nannini     Minardi-Motori Moderni M185B     - 10 laps (Not classified)
    Gerhard Berger         Benetton-BMW B186                - 26 laps (Spun)
    Andrea de Cesaris      Minardi-Motori Moderni M186      - 27 laps (Spun)
    Derek Warwick          Brabham-BMW BT55                 - 29 laps (Electrics)
    Keke Rosberg           McLaren-TAG MP4/2C               - 29 laps (Electrics)
    Philippe Alliot        Ligier-Renault JS27              - 31 laps (Engine)
    Philippe Streiff       Tyrrell-Renault 015              - 42 laps (Engine)
    Martin Brundle         Tyrrell-Renault 015              - 52 laps (Engine)
    Alan Jones             Lola-Ford THL2                   - 60 laps (Spun)
    Huub Rothengatter      Zakspeed 861                     - 61 laps (Transmission)
    Piercarlo Ghinzani     Osella-Alfa Romeo FA1G           - 62 laps (Engine)
    Ivan Capelli           AGS-Motori Moderni JH21C         - 64 laps (Transmission)


    Race leaders:
    Nigel Mansell           1-70 (70 laps = 304.500 km)
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                                Starting Grid

 1. Ayrton Senna           Lotus-Renault 98T                 1:16.673 (204.244 km/h)
 2. Nigel Mansell          Williams-Honda FW11              -   0.816
 3. Alain Prost            McLaren-TAG MP4/2C               -   1.037
 4. Gerhard Berger         Benetton-BMW B186                -   1.069
 5. Teo Fabi               Benetton-BMW B186                -   1.398
 6. Nelson Piquet          Williams-Honda FW11              -   1.507
 7. Keke Rosberg           McLaren-TAG MP4/2C               -   1.687
 8. Stefan Johansson       Ferrari F186                     -   2.659
 9. Riccardo Patrese       Brabham-BMW BT55                 -   2.964
10. René Arnoux            Ligier-Renault JS27              -   2.984
11. Philippe Alliot        Ligier-Renault JS27              -   3.096
12. Derek Warwick          Brabham-BMW BT55                 -   3.209
13. Michele Alboreto       Ferrari F186                     -   3.346
14. Patrick Tambay         Lola-Ford THL2                   -   4.088
15. Johnny Dumfries        Lotus-Renault 98T                -   4.921
16. Andrea de Cesaris      Minardi-Motori Moderni M186      -   4.938
17. Alan Jones             Lola-Ford THL2                   -   4.973
18. Alessandro Nannini     Minardi-Motori Moderni M185B     -   5.029
19. Martin Brundle         Tyrrell-Renault 015              -   5.162
20. Jonathan Palmer        Zakspeed 861                     -   5.256
21. Thierry Boutsen        Arrows-BMW A8                    -   5.395
22. Christian Danner       Arrows-BMW A8                    -   5.601
23. Philippe Streiff       Tyrrell-Renault 015              -   5.715
24. Piercarlo Ghinzani     Osella-Alfa Romeo FA1G           -   6.893
25. Ivan Capelli           AGS-Motori Moderni JH21C         -   7.314
26. Huub Rothengatter      Zakspeed 861                     -   7.432
27. Allen Berg             Osella-Alfa Romeo FA1F           -  10.188