| «1989-02» | San Marino Grand Prix - IX Gran Premio di San Marino |
| 1989-04-23 | Imola - Autodromo Internazionale Enzo e Dino Ferrari - 58 laps × 5.04 km : 292.32 km |
| Pos | Car | Driver | Constructor | Time | Speed | Lap | Gap |
|---|---|---|---|---|---|---|---|
| 1 | 2 | Alain Prost | McLaren • Honda | 01:26.795 | 209.044 km/h | 45 | |
| 2 | 1 | Ayrton Senna | McLaren • Honda | 01:27.273 | 207.899 km/h | 37 | +00.478 |
| 3 | 5 | Thierry Boutsen | Williams • Renault | 01:29.571 | 202.566 km/h | 45 | +02.776 |
| 4 | 27 | Nigel Mansell | Ferrari | 01:29.849 | 201.939 km/h | 18 | +03.054 |
| 5 | 19 | Alessandro Nannini | Benetton • Ford Cosworth | 01:29.868 | 201.896 km/h | 49 | +03.073 |
| 6 | 6 | Riccardo Patrese | Williams • Renault | 01:29.959 | 201.692 km/h | 13 | +03.164 |
| 7 | 22 | Andrea de Cesaris | Dallara • Ford Cosworth | 01:29.995 | 201.611 km/h | 52 | +03.200 |
| 8 | 3 | Jonathan Palmer | Tyrrell • Ford Cosworth | 01:30.164 | 201.233 km/h | 49 | +03.369 |
| 9 | 40 | Gabriele Tarquini | AGS • Ford Cosworth | 01:30.364 | 200.788 km/h | 53 | +03.569 |
| 10 | 21 | Alex Caffi | Dallara • Ford Cosworth | 01:30.371 | 200.772 km/h | 44 | +03.576 |
| 11 | 10 | Eddie Cheever | Arrows • Ford Cosworth | 01:30.728 | 199.982 km/h | 30 | +03.933 |
| 12 | 9 | Derek Warwick | Arrows • Ford Cosworth | 01:30.749 | 199.936 km/h | 36 | +03.954 |
| 13 | 11 | Nelson Piquet | Lotus • Judd | 01:30.771 | 199.888 km/h | 28 | +03.976 |
| 14 | 20 | Johnny Herbert | Benetton • Ford Cosworth | 01:31.020 | 199.341 km/h | 50 | +04.225 |
| 15 | 17 | Nicola Larini | Osella • Ford Cosworth | 01:31.791 | 197.666 km/h | 15 | +04.996 |
| 16 | 24 | Luis Perez-Sala | Minardi • Ford Cosworth | 01:31.948 | 197.329 km/h | 38 | +05.153 |
| 17 | 12 | Satoru Nakajima | Lotus • Judd | 01:31.970 | 197.282 km/h | 43 | +05.175 |
| 18 | 15 | Mauricio Gugelmin | March • Judd | 01:32.038 | 197.136 km/h | 16 | +05.243 |
| 19 | 7 | Martin Brundle | Brabham • Judd | 01:32.189 | 196.813 km/h | 27 | +05.394 |
| 20 | 8 | Stefano Modena | Brabham • Judd | 01:32.618 | 195.901 km/h | 18 | +05.823 |
| 21 | 28 | Gerhard Berger | Ferrari | 01:33.319 | 194.430 km/h | 3 | +06.524 |
| 22 | 26 | Olivier Grouillard | Ligier • Ford Cosworth | 01:34.472 | 192.057 km/h | 3 | +07.677 |
| 23 | 23 | Pierluigi Martini | Minardi • Ford Cosworth | 01:34.525 | 191.949 km/h | 5 | +07.730 |
| 24 | 16 | Ivan Capelli | March • Judd | 01:42.912 | 176.306 km/h | 1 | +16.117 |