Race Result
| GP n. 465 - 25/09/1988 - Grand Prix of Portugal Autodromo do Estoril |
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| Winner: | Alain Prost / McLaren-Honda - 1:37'40.958 | ||||||
| Pole Position: | Alain Prost / McLaren-Honda - 1:17.411 | ||||||
| Fastest Lap: | Gerhard Berger / Ferrari - 1:21.961 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 11 |  Alain Prost |
McLaren-Honda | 70 | 1:37'40.958 | 1 | 9 |
| 2 | 16 |  Ivan Capelli |
March-Judd | 70 | +9.553 | 3 | 6 |
| 3 | 20 |  Thierry Boutsen |
Benetton-Ford | 70 | +44.619 | 13 | 4 |
| 4 | 17 |  Derek Warwick |
Arrows-Megatron | 70 | + 1'07.419 | 10 | 3 |
| 5 | 27 | Michele Alboreto |
Ferrari | 70 | + 1'11.884 | 7 | 2 |
| 6 | 12 |  Ayrton Senna |
McLaren-Honda | 70 | + 1'18.269 | 2 | 1 |
| 7 | 36 | Alex Caffi |
Dallara-Ford | 69 | + 1 lap | 17 | 0 |
| 8 | 24 |  Luis Perez-Sala |
Minardi-Ford | 68 | + 2 laps | 19 | 0 |
| 9 | 14 | Philippe Streiff |
AGS-Ford | 68 | + 2 laps | 21 | 0 |
| 10 | 25 | Rene Arnoux |
Ligier-Judd | 68 | + 2 laps | 23 | 0 |
| 11 | 31 | Gabriele Tarquini |
Coloni-Ford | 65 | + 5 laps | 26 | 0 |
| 12 | 21 | Nicola Larini |
Osella | 63 | + 7 laps | 25 | 0 |
| Ret | 15 | Mauricio Gugelmin |
March-Judd | 59 | engine | 5 | 0 |
| Ret | 5 | Nigel Mansell |
Williams-Judd | 54 | spun off | 6 | 0 |
| Ret | 3 | Jonathan Palmer |
Tyrrell-Ford | 53 | overheating | 22 | 0 |
| Ret | 19 | Alessandro Nannini |
Benetton-Ford | 52 | handling | 9 | 0 |
| Ret | 28 |  Gerhard Berger |
Ferrari | 35 | spun off | 4 | 0 |
| Ret | 1 | Nelson Piquet |
Lotus-Honda | 34 | clutch | 8 | 0 |
| Ret | 6 | Riccardo Patrese |
Williams-Judd | 29 | radiator | 11 | 0 |
| Ret | 23 | Pierluigi Martini |
Minardi-Ford | 27 | engine | 14 | 0 |
| Ret | 29 | Yannick Dalmas |
Lola-Ford | 20 | alternator | 15 | 0 |
| Ret | 2 |  Satoru Nakajima |
Lotus-Honda | 16 | spun off | 16 | 0 |
| Ret | 22 | Andrea de Cesaris |
Rial-Ford | 11 | halfshaft | 12 | 0 |
| Ret | 18 |  Eddie Cheever |
Arrows-Megatron | 10 | turbo | 18 | 0 |
| Ret | 30 | Philippe Alliot |
Lola-Ford | 7 | engine | 20 | 0 |
| Ret | 26 |  Stefan Johansson |
Ligier-Judd | 4 | engine | 24 | 0 |
| Dnq | 32 |  Oscar Larrauri |
Euro Brun-Ford | did not qualify | 0 | ||
| Dnq | 33 | Stefano Modena |
Euro Brun-Ford | did not qualify | 0 | ||
| Dnq | 4 | Julian Bailey |
Tyrrell-Ford | did not qualify | 0 | ||
| Dnq | 9 | Piercarlo Ghinzani |
Zakspeed | did not qualify | 0 | ||
| Dnq | 10 |  Bernd Schneider |
Zakspeed | did not qualify | 0 | ||