| Circuit | Autodromo Nazionale di Monza |
|---|---|
| Date | 1989-09-10 |
| Round | 12 |
| Pos | Driver | Team | Grid | Laps | Time/Status | Fastest Lap | Pts |
|---|---|---|---|---|---|---|---|
| 1 | Alain Prost | McLaren | 4 | 53 | 1:19:27.550 | — | 9 |
| 2 | Gerhard Berger | Ferrari | 2 | 53 | +7.326 | — | 6 |
| 3 | Thierry Boutsen | Williams | 6 | 53 | +14.975 | — | 4 |
| 4 | Riccardo Patrese | Williams | 5 | 53 | +38.722 | — | 3 |
| 5 | Jean Alesi | Tyrrell | 10 | 52 | +1 Lap | — | 2 |
| 6 | Martin Brundle | Brabham | 12 | 52 | +1 Lap | — | 1 |
| 7 | Pierluigi Martini | Minardi | 15 | 52 | +1 Lap | — | 0 |
| 8 | Luis Pérez-Sala | Minardi | 26 | 51 | +2 Laps | — | 0 |
| 9 | René Arnoux | Ligier | 23 | 51 | +2 Laps | — | 0 |
| 10 | Satoru Nakajima | Team Lotus | 19 | 51 | Suspension | — | 0 |
| 11 | Alex Caffi | Dallara | 20 | 47 | Engine | — | 0 |
| 12 | Andrea de Cesaris | Dallara | 17 | 45 | Engine | — | 0 |
| 13 | Ayrton Senna | McLaren | 1 | 44 | Engine | — | 0 |
| 14 | Nigel Mansell | Ferrari | 3 | 41 | Gearbox | — | 0 |
| 15 | Bertrand Gachot | Onyx | 22 | 38 | Radiator | — | 0 |
| 16 | Alessandro Nannini | Benetton | 8 | 33 | Brakes | — | 0 |
| 17 | Ivan Capelli | March | 18 | 30 | Engine | — | 0 |
| 18 | Olivier Grouillard | Ligier | 21 | 30 | Exhaust | — | 0 |
| 19 | Nelson Piquet | Team Lotus | 11 | 23 | Spun off | — | 0 |
| 20 | Jonathan Palmer | Tyrrell | 14 | 18 | Engine | — | 0 |
| 21 | Derek Warwick | Arrows | 16 | 18 | Fuel system | — | 0 |
| 22 | Nicola Larini | Osella | 24 | 16 | Gearbox | — | 0 |
| 23 | Michele Alboreto | Larrousse | 13 | 14 | Electrical | — | 0 |
| 24 | Maurício Gugelmin | March | 25 | 14 | Throttle | — | 0 |
| 25 | Philippe Alliot | Larrousse | 7 | 1 | Spun off | — | 0 |
| 26 | Emanuele Pirro | Benetton | 9 | 0 | Transmission | — | 0 |
| 27 | Stefano Modena | Brabham | 0 | 0 | Disqualified | — | 0 |