Italia Grand Prix Lopsresultat
| Pos | Forer | Team | Runder | Tid/Gap | Raskeste | Pit |
|---|---|---|---|---|---|---|
| 1 | Nelson Piquet | Williams | 50 | 1:14:47.707 | – | – |
| 2 | Ayrton Senna | Team Lotus | 50 | +1.806 | – | – |
| 3 | Nigel Mansell | Williams | 50 | +49.036 | – | – |
| 4 | Gerhard Berger | Ferrari | 50 | +57.979 | – | – |
| 5 | Thierry Boutsen | Benetton | 50 | +1:21.319 | – | – |
| 6 | Stefan Johansson | McLaren | 50 | +1:28.787 | – | – |
| 7 | Teo Fabi | Benetton | 49 | +1 Lap | – | – |
| 8 | Piercarlo Ghinzani | Ligier | 48 | +2 Laps | – | – |
| 9 | Christian Danner | Zakspeed | 48 | +2 Laps | – | – |
| 10 | René Arnoux | Ligier | 48 | +2 Laps | – | – |
| 11 | Satoru Nakajima | Team Lotus | 47 | +3 Laps | – | – |
| 12 | Philippe Streiff | Tyrrell | 47 | +3 Laps | – | – |
| 13 | Ivan Capelli | March | 47 | +3 Laps | – | – |
| 14 | Jonathan Palmer | Tyrrell | 47 | +3 Laps | – | – |
| 15 | Alain Prost | McLaren | 46 | +4 Laps | – | – |
| 16 | Alessandro Nannini | Minardi | 45 | +5 Laps | – | – |
| R | Martin Brundle | Zakspeed | 43 | Gearbox | – | – |
| R | Philippe Alliot | Larrousse | 37 | Spun off | – | – |
| R | Adrián Campos | Minardi | 34 | Engine | – | – |
| R | Eddie Cheever | Arrows | 27 | Halfshaft | – | – |
| R | Franco Forini | Osella | 27 | Turbo | – | – |
| R | Alex Caffi | Osella | 16 | Suspension | – | – |
| R | Michele Alboreto | Ferrari | 13 | Turbo | – | – |
| R | Derek Warwick | Arrows | 9 | Electrical | – | – |
| R | Andrea de Cesaris | Brabham | 7 | Suspension | – | – |
| R | Riccardo Patrese | Brabham | 5 | Engine | – | – |
| F | Nicola Larini | Coloni | 0 | Did not qualify | – | – |
| F | Pascal Fabre | AGS | 0 | Did not qualify | – | – |