Race Result
| GP n. 497 - 23/09/1990 - Grand Prix of Portugal Autodromo do Estoril |
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| Winner: | Nigel Mansell / Ferrari - 1:22'11.014 | ||||||
| Pole Position: | Nigel Mansell / Ferrari - 1:13.557 | ||||||
| Fastest Lap: | Riccardo Patrese / Williams-Renault - 1:18.306 | ||||||
| Pos | Nš | Driver | Constructor | Laps | Time/Retired | Grid | Points |
| 1 | 2 |  Nigel Mansell |
Ferrari | 61 | 1:22'11.014 | 1 | 9 |
| 2 | 27 |  Ayrton Senna |
McLaren-Honda | 61 | +2.808 | 3 | 6 |
| 3 | 1 |  Alain Prost |
Ferrari | 61 | +4.189 | 2 | 4 |
| 4 | 28 |  Gerhard Berger |
McLaren-Honda | 61 | +5.896 | 4 | 3 |
| 5 | 20 | Nelson Piquet |
Benetton-Ford | 51 | +57.418 | 6 | 2 |
| 6 | 19 |  Alessandro Nannini |
Benetton-Ford | 61 | +58.249 | 9 | 1 |
| 7 | 6 | Riccardo Patrese |
Williams-Renault | 60 | + 1 lap | 5 | 0 |
| 8 | 4 | Jean Alesi |
Tyrrell-Ford | 60 | + 1 lap | 8 | 0 |
| 9 | 9 | Michele Alboreto |
Arrows-Ford | 60 | + 1 lap | 19 | 0 |
| 10 | 25 | Nicola Larini |
Ligier-Ford | 59 | + 2 laps | 22 | 0 |
| 11 | 23 | Pierluigi Martini |
Minardi-Ford | 59 | + 2 laps | 16 | 0 |
| 12 | 15 | Mauricio Gugelmin |
Leyton House-Judd | 59 | + 2 laps | 14 | 0 |
| 13 | 10 | Alex Caffi |
Arrows-Ford | 58 | accident | 17 | 0 |
| 14 | 30 |  Aguri Suzuki |
Lola-Lamborghini | 58 | accident | 11 | 0 |
| 15 | 21 | Emanuele Pirro |
Dallara-Ford | 58 | + 3 laps | 13 | 0 |
| Ret | 7 |  David Brabham |
Brabham-Judd | 52 | gear box | 25 | 0 |
| Ret | 26 | Philippe Alliot |
Ligier-Ford | 52 | accident | 20 | 0 |
| Ret | 16 | Ivan Capelli |
Leyton House-Judd | 51 | engine | 12 | 0 |
| Ret | 5 |  Thierry Boutsen |
Williams-Renault | 30 | engine | 7 | 0 |
| Ret | 29 | Eric Bernard |
Lola-Lamborghini | 24 | gear box | 10 | 0 |
| Ret | 8 | Stefano Modena |
Brabham-Judd | 21 | gear box | 23 | 0 |
| Ret | 12 | Martin Donnelly |
Lotus-Lamborghini | 14 | alternator | 15 | 0 |
| Ret | 11 | Derek Warwick |
Lotus-Lamborghini | 5 | throttle | 21 | 0 |
| Ret | 18 | Yannick Dalmas |
AGS-Ford | 3 | halfshaft | 24 | 0 |
| Ret | 22 | Andrea de Cesaris |
Dallara-Ford | 0 | spun off | 18 | 0 |
| Dnq | 17 | Gabriele Tarquini |
AGS-Ford | did not qualify | 0 | ||
| Dnq | 31 | Bertrand Gachot |
Coloni-Ford | did not qualify | 0 | ||
| Dnq | 33 | Roberto Moreno |
Euro Brun-Judd | did not qualify | 0 | ||
| Dnq | 34 | Claudio Langes |
Euro Brun-Judd | did not qualify | 0 | ||
| Dnq | 39 | Bruno Giacomelli |
Life-Judd | did not qualify | 0 | ||
| Dnq | 24 | Paolo Barilla |
Minardi-Ford | did not qualify | 0 | ||
| Dnq | 14 | Olivier Grouillard |
Osella-Ford | did not qualify | 0 | ||
| Dns | 3 | Satoru Nakajima |
Tyrrell-Ford | did not start | 0 | ||