September 7, 1986 Autodromo Nazionale Monza | Lap distance 5.800 km
| Pos | Points | No | Driver | Car | Engine | Tyres | Laps | Race Time | Delay | Qualifying | Fastest Lap | |||
| 1 | 9 | 6 | Nelson Piquet (BRA) | Williams FW11 | Honda RA166-E | Goodyear | 51 | 1:17'42.889 | 6 | 1'25.137 | 2 | 1'28.173 | (35) | |
| 2 | 6 | 5 | Nigel Mansell (GBR) | Williams FW11 | Honda RA166-E | Goodyear | 51 | 1:17'52.717 | +9.828 | 3 | 1'24.882 | 5 | 1'28.803 | (41) |
| 3 | 4 | 28 | Stefan Johansson (SWE) | Ferrari F1/86 | Ferrari 126C | Goodyear | 51 | 1:18'05.804 | +22.915 | 12 | 1'26.422 | 4 | 1'28.625 | (43) |
| 4 | 3 | 2 | Keke Rosberg (FIN) | McLaren MP4-2C | TAG TTE PO1 | Goodyear | 51 | 1:18'36.698 | +53.809 | 8 | 1'25.378 | 6 | 1'29.221 | (47) |
| 5 | 2 | 20 | Gerhard Berger (AUT) | Benetton B186 | BMW M12/13 | Pirelli | 50 | 1:17'33.515 | +1 lap | 4 | 1'24.885 | 3 | 1'28.191 | (43) |
| 6 | 1 | 15 | Alan Jones (AUS) | Lola THL-2 | Ford F1 | Goodyear | 49 | 1:17'45.817 | +2 laps | 18 | 1'28.043 | 8 | 1'31.050 | (43) |
| 7 | 18 | Thierry Boutsen (BEL) | Arrows A8 | BMW M12/13 | Goodyear | 49 | 1:17'59.186 | +2 laps | 13 | 1'26.754 | 14 | 1'32.934 | (30) | |
| 8 | 17 | Christian Danner (GER) | Arrows A8 | BMW M12/13 | Goodyear | 49 | 1:18'16.918 | +2 laps | 16 | 1'27.923 | 10 | 1'32.224 | (41) | |
| 9 | 4 | Philippe Streiff (FRA) | Tyrrell 015 | Renault EF15B | Goodyear | 49 | 1:18'59.747 | +2 laps | 23 | 1'30.199 | 16 | 1'33.625 | (40) | |
| 10 | 3 | Martin Brundle (GBR) | Tyrrell 015 | Renault EF15B | Goodyear | 49 | 1:19'06.867 | +2 laps | 20 | 1'29.125 | 15 | 1'33.391 | (14) | |
| Not classified | ||||||||||||||
| -- | 22 | Alex Caffi (ITA) | Osella FA1G | Alfa Romeo 890T | Pirelli | 45 | 1:17'51.853 | 27 | 1'36.900 | 24 | 1'39.818 | (7) | ||
| Retirement | ||||||||||||||
| puncture | 19 | Teo Fabi (ITA) | Benetton B186 | BMW M12/13 | Pirelli | 44 | 1:12'42.231 | 1 | 1'24.078 | 1 | 1'28.099 | (35) | ||
| engine | 27 | Michele Alboreto (ITA) | Ferrari F1/86 | Ferrari 126C | Goodyear | 33 | 51'20.077 | 9 | 1'25.549 | 7 | 1'30.141 | (11) | ||
| engine | 23 | Andrea de Cesaris (ITA) | Minardi M/86 | Motori Moderni 6VTC | Pirelli | 33 | 54'11.089 | 21 | 1'29.561 | 17 | 1'33.776 | (20) | ||
| puncture | 31 | Ivan Capelli (ITA) | AGS JH21C | Motori Moderni 6VTC | Pirelli | 31 | 51'45.121 | 25 | 1'33.844 | 22 | 1'36.290 | (10) | ||
| gearbox | 25 | René Arnoux (FRA) | Ligier JS27 | Renault EF15B | Pirelli | 30 | 59'35.013 | 11 | 1'26.187 | 9 | 1'31.514 | (21) | ||
| engine | 14 | Jonathan Palmer (GBR) | Zakspeed 861 | Zakspeed 861 | Goodyear | 27 | 1:05'04.254 | 22 | 1'29.659 | 21 | 1'35.845 | (6) | ||
| engine | 26 | Philippe Alliot (FRA) | Ligier JS27 | Renault EF15B | Pirelli | 22 | 34'26.685 | 14 | 1'27.269 | 11 | 1'32.244 | (21) | ||
| gearbox | 11 | Johnny Dumfries (GBR) | Team Lotus 98T | Renault EF15B | Goodyear | 18 | 28'11.661 | 17 | 1'28.024 | 13 | 1'32.605 | (10) | ||
| spun off | 8 | Derek Warwick (GBR) | Brabham BT55 | BMW M12/13/1 | Pirelli | 16 | 25'06.737 | 7 | 1'25.175 | 12 | 1'32.444 | (12) | ||
| electrical | 24 | Alessandro Nannini (ITA) | Minardi M/85B | Motori Moderni 6VTC | Pirelli | 15 | 24'14.590 | 19 | 1'28.690 | 18 | 1'34.401 | (12) | ||
| suspension | 21 | Piercarlo Ghinzani (ITA) | Osella FA1F | Alfa Romeo 890T | Pirelli | 12 | 19'59.951 | 26 | 1'36.128 | 23 | 1'37.179 | (11) | ||
| accident | 16 | Patrick Tambay (FRA) | Lola THL-2 | Ford F1 | Goodyear | 2 | 3'22.637 | 15 | 1'27.808 | 19 | 1'34.443 | (2) | ||
| accident | 7 | Riccardo Patrese (ITA) | Brabham BT55 | BMW M12/13/1 | Pirelli | 2 | 3'23.378 | 10 | 1'26.111 | 20 | 1'34.972 | (2) | ||
| engine | 29 | Huub Rothengatter (NED) | Zakspeed 861 | Zakspeed 861 | Goodyear | 1 | 1'58.761 | 24 | 1'30.904 | 25 | 1'58.761 | (1) | ||
| transmission | 12 | Ayrton Senna (BRA) | Team Lotus 98T | Renault EF15B | Goodyear | 0 | 5 | 1'24.916 | ||||||
| Disqualified | ||||||||||||||
| -- | 1 | Alain Prost (FRA) | McLaren MP4-2C | TAG TTE PO1 | Goodyear | 27 | 42'35.938 | 2 | 1'24.514 | 1'29.501 | (16) | |||
