Race Result
| GP n. 438 - 03/05/1987 - Grand Prix of San Marino Autodromo Enzo e Dino Ferrari |
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| Winner: | Nigel Mansell / Williams-Honda - 1:31'24.076 | ||||||
| Pole Position: | Ayrton Senna / Lotus-Honda - 1:25.826 | ||||||
| Fastest Lap: | Teo Fabi / Benetton-Ford - 1:29.246 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 5 |  Nigel Mansell |
Williams-Honda | 59 | 1:31'24.076 | 2 | 9 |
| 2 | 12 |  Ayrton Senna |
Lotus-Honda | 59 | +27.453 | 1 | 6 |
| 3 | 27 |  Michele Alboreto |
Ferrari | 59 | +39.144 | 6 | 4 |
| 4 | 2 |  Stefan Johansson |
McLaren-TAG | 59 | + 1'00.588 | 8 | 3 |
| 5 | 9 | Martin Brundle |
Zakspeed | 57 | + 2 laps | 14 | 2 |
| 6 | 11 |  Satoru Nakajima |
Lotus-Honda | 57 | out of fuel | 12 | 1 |
| 7 | 10 |  Christian Danner |
Zakspeed | 57 | + 2 laps | 17 | 0 |
| 8 | 4 |  Philippe Streiff |
Tyrrell-Ford | 57 | + 2 laps | 20 | 0 |
| 9 | 7 | Riccardo Patrese |
Brabham-BMW | 57 | + 2 laps | 7 | 0 |
| 10 | 30 | Philippe Alliot |
Lola-Ford | 56 | + 3 laps | 21 | 0 |
| 11 | 17 | Derek Warwick |
Arrows-Megatron | 55 | out of fuel | 10 | 0 |
| 12 | 21 | Alex Caffi |
Osella-Alfa Romeo | 54 | out of fuel | 19 | 0 |
| 13 | 14 | Pascal Fabre |
AGS-Ford | 53 | + 6 laps | 24 | 0 |
| Ret | 19 | Teo Fabi |
Benetton-Ford | 51 | turbo | 4 | 0 |
| Ret | 18 |  Eddie Cheever |
Arrows-Megatron | 48 | clutch | 9 | 0 |
| Ret | 20 |  Thierry Boutsen |
Benetton-Ford | 48 | engine | 11 | 0 |
| Ret | 3 | Jonathan Palmer |
Tyrrell-Ford | 48 | clutch | 23 | 0 |
| Ret | 8 | Andrea de Cesaris |
Brabham-BMW | 39 | spun off | 13 | 0 |
| Ret | 23 |  Adrian Campos |
Minardi-Motori Moderni | 30 | gear box | 16 | 0 |
| Ret | 22 | Gabriele Tarquini |
Osella-Alfa Romeo | 26 | gear box | 25 | 0 |
| Ret | 24 | Alessandro Nannini |
Minardi-Motori Moderni | 25 | turbo | 15 | 0 |
| Ret | 16 | Ivan Capelli |
March-Ford | 18 | engine | 22 | 0 |
| Ret | 28 |  Gerhard Berger |
Ferrari | 16 | electrical | 5 | 0 |
| Ret | 1 | Alain Prost |
McLaren-TAG | 14 | electrical | 3 | 0 |
| Ret | 26 | Piercarlo Ghinzani |
Ligier-Megatron | 7 | handling | 18 | 0 |
| Dns | 25 | Rene Arnoux |
Ligier-Megatron | suspension | 0 | ||
| Dns | 6 | Nelson Piquet |
Williams-Honda | injured | 0 | ||