Race Result
| GP n. 433 - 07/09/1986 - Grand Prix of Italy Autodromo Nationale di Monza |
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| Winner: | Nelson Piquet / Williams-Honda - 1:17'42.889 | ||||||
| Pole Position: | Teo Fabi / Benetton-BMW - 1:24.078 | ||||||
| Fastest Lap: | Teo Fabi / Benetton-BMW - 1:28.099 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 6 |  Nelson Piquet |
Williams-Honda | 51 | 1:17'42.889 | 6 | 9 |
| 2 | 5 |  Nigel Mansell |
Williams-Honda | 51 | +9.828 | 3 | 6 |
| 3 | 28 |  Stefan Johansson |
Ferrari | 51 | +22.915 | 12 | 4 |
| 4 | 2 |  Keke Rosberg |
McLaren-TAG | 51 | +53.809 | 8 | 3 |
| 5 | 20 |  Gerhard Berger |
Benetton-BMW | 50 | + 1 lap | 4 | 2 |
| 6 | 15 |  Alan Jones |
Lola-Ford | 49 | + 2 laps | 18 | 1 |
| 7 | 18 |  Thierry Boutsen |
Arrows-BMW | 49 | + 2 laps | 13 | 0 |
| 8 | 17 |  Christian Danner |
Arrows-BMW | 49 | + 2 laps | 16 | 0 |
| 9 | 4 |  Philippe Streiff |
Tyrrell-Renault | 49 | + 2 laps | 23 | 0 |
| 10 | 3 | Martin Brundle |
Tyrrell-Renault | 49 | + 2 laps | 20 | 0 |
| Nc | 22 |  Alex Caffi |
Osella-Alfa Romeo | 45 | not classified | 27 | 0 |
| Dsq | 1 | Alain Prost |
McLaren-TAG | 27 | disqualified | 2 | 0 |
| Ret | 19 | Teo Fabi |
Benetton-BMW | 44 | puncture | 1 | 0 |
| Ret | 27 | Michele Alboreto |
Ferrari | 33 | engine | 9 | 0 |
| Ret | 23 | Andrea de Cesaris |
Minardi-Motori Moderni | 33 | engine | 21 | 0 |
| Ret | 31 | Ivan Capelli |
AGS-Motori Moderni | 31 | puncture | 25 | 0 |
| Ret | 25 | Rene Arnoux |
Ligier-Renault | 30 | gear box | 11 | 0 |
| Ret | 14 | Jonathan Palmer |
Zakspeed | 27 | engine | 22 | 0 |
| Ret | 26 | Philippe Alliot |
Ligier-Renault | 22 | engine | 14 | 0 |
| Ret | 11 | Johnny Dumfries |
Lotus-Renault | 18 | gear box | 17 | 0 |
| Ret | 8 | Derek Warwick |
Brabham-BMW | 16 | spun off | 7 | 0 |
| Ret | 24 | Alessandro Nannini |
Minardi-Motori Moderni | 15 | electrical | 19 | 0 |
| Ret | 21 | Piercarlo Ghinzani |
Osella-Alfa Romeo | 12 | suspension | 26 | 0 |
| Ret | 7 | Riccardo Patrese |
Brabham-BMW | 2 | accident | 10 | 0 |
| Ret | 16 | Patrick Tambay |
Lola-Ford | 2 | accident | 15 | 0 |
| Ret | 29 |  Huub Rothengatter |
Zakspeed | 1 | engine | 24 | 0 |
| Ret | 12 | Ayrton Senna |
Lotus-Renault | 0 | transmission | 5 | 0 |