1991 Grand Prix of Italy
8 September - Monza: 307.400km (5.800km x 53 laps)


Pole Position: Ayrton Senna, McLaren-Honda MP4/6, 1:21.114


Results
 1. Nigel Mansell          Williams-Renault FW14         1:17:54.319 (236.749 km/h)
 2. Ayrton Senna           McLaren-Honda MP4/6          -     16.262
 3. Alain Prost            Ferrari 643                  -     16.829
 4. Gerhard Berger         McLaren-Honda MP4/6          -     27.719
 5. Michael Schumacher     Benetton-Ford B191           -     34.463
 6. Nelson Piquet          Benetton-Ford B191           -     45.600
 7. Andrea de Cesaris      Jordan-Ford 191              -     51.136
 8. Ivan Capelli           Leyton House-Ilmor CG911     -   1:15.019
 9. Gianni Morbidelli      Minardi-Ferrari M191         -  1 lap
10. Emanuele Pirro         Dallara-Judd 191             -  1 lap
11. Erik Comas             Ligier-Lamborghini JS35B     -  1 lap
12. Mark Blundell          Brabham-Yamaha BT60Y         -  1 lap
13. Martin Brundle         Brabham-Yamaha BT60Y         -  1 lap
14. Mika Häkkinen          Lotus-Judd 102B              -  4 laps
15. Mauricio Gugelmin      Leyton House-Ilmor CG911     -  4 laps
16. Nicola Larini          Lamborghini 291              -  5 laps
    
Fastest lap: Ayrton Senna, 1:26.061 (242.619 km/h on lap 41)
    

Retirements
    Olivier Grouillard     Fomet-Ford F1                -  7 laps (Engine)
    J.J. Lehto             Dallara-Judd 191             - 18 laps (Puncture/Suspension)
    Stefano Modena         Tyrrell-Honda 020            - 21 laps (Engine)
    Jean Alesi             Ferrari 643                  - 24 laps (Engine)
    Riccardo Patrese       Williams-Renault FW14        - 26 laps (Gearbox)
    Satoru Nakajima        Tyrrell-Honda 020            - 29 laps (Throttle jammed)
    Eric Bernard           Lola-Ford L91                - 32 laps (Engine)
    Pierluigi Martini      Minardi-Ferrari M191         - 45 laps (Brakes/Spun)
    Roberto Moreno         Jordan-Ford 191              - 51 laps (Brakes/Spun)
    Thierry Boutsen        Ligier-Lamborghini JS35B     - 52 laps (Spun)
    
Did Not Qualify    
    Michele Alboreto       Footwork-Ford FA12
    Michael Bartels        Lotus-Judd 102B
    Eric van de Poele      Lamborghini 291
    Aguri Suzuki           Lola-Ford L91
    
Did Not Pre-qualify    
    Fabrizio Barbazza      AGS-Ford JH25B
    Gabriele Tarquini      AGS-Ford JH27
    Alex Caffi             Footwork-Ford FA12
    Pedro Chaves           Coloni-Ford C4                No time


    Race leaders:
    Ayrton Senna            1-25 (25 laps = 145.000 km)
    Riccardo Patrese       26     (1 lap  =   5.800 km)
    Ayrton Senna           27-33  (7 laps =  40.600 km)
    Nigel Mansell          34-53 (20 laps = 116.000 km)
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                                Starting Grid

 1. Ayrton Senna           McLaren-Honda MP4/6           1:21.114 (257.415 km/h)
 2. Nigel Mansell          Williams-Renault FW14        -   0.133
 3. Gerhard Berger         McLaren-Honda MP4/6          -   0.232
 4. Riccardo Patrese       Williams-Renault FW14        -   0.258
 5. Alain Prost            Ferrari 643                  -   0.711
 6. Jean Alesi             Ferrari 643                  -   0.776
 7. Michael Schumacher     Benetton-Ford B191           -   1.357
 8. Nelson Piquet          Benetton-Ford B191           -   1.612
 9. Roberto Moreno         Jordan-Ford 191              -   1.988
10. Pierluigi Martini      Minardi-Ferrari M191         -   2.180
11. Mark Blundell          Brabham-Yamaha BT60Y         -   2.286
12. Ivan Capelli           Leyton House-Ilmor CG911     -   2.560
13. Stefano Modena         Tyrrell-Honda 020            -   2.587
14. Andrea de Cesaris      Jordan-Ford 191              -   2.807
15. Satoru Nakajima        Tyrrell-Honda 020            -   3.151
16. Emanuele Pirro         Dallara-Judd 191             -   3.151
17. Gianni Morbidelli      Minardi-Ferrari M191         -   3.173
18. Mauricio Gugelmin      Leyton House-Ilmor CG911     -   3.277
19. Martin Brundle         Brabham-Yamaha BT60Y         -   3.529
20. J.J. Lehto             Dallara-Judd 191             -   3.611
21. Thierry Boutsen        Ligier-Lamborghini JS35B     -   4.003
22. Erik Comas             Ligier-Lamborghini JS35B     -   4.306
23. Nicola Larini          Lamborghini 291              -   4.603
24. Eric Bernard           Lola-Ford L91                -   4.757
25. Mika Häkkinen          Lotus-Judd 102B              -   4.827
26. Olivier Grouillard     Fomet-Ford F1                -   5.302

Did Not Qualify
27. Michele Alboreto       Footwork-Ford FA12           -   5.449
28. Michael Bartels        Lotus-Judd 102B              -   5.715
29. Eric van de Poele      Lamborghini 291              -   5.996
30. Aguri Suzuki           Lola-Ford L91                -   6.143

Did Not Pre-qualify
31. Fabrizio Barbazza      AGS-Ford JH25B               -   6.278
32. Gabriele Tarquini      AGS-Ford JH27                -   6.287
33. Alex Caffi             Footwork-Ford FA12           -   6.494
34. Pedro Chaves           Coloni-Ford C4                No time