Autódromo do Estoril · 23 September 1990
Nigel Mansell won the 1990 Portuguese Grand Prix for Ferrari from 1st on the grid, 2.808s ahead of Ayrton Senna. Nicola Larini gained the most places, from 22nd on the grid to 10th.
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | Ferrari Mansell 9 + Prost 4 | Mansell 9 + Prost 4 | 13 | |
| 2 | McLaren Senna 6 + Berger 3 | Senna 6 + Berger 3 | 9 | |
| 3 | Benetton Piquet 2 + Nannini 1 | Piquet 2 + Nannini 1 | 3 | |
| 4 | Williams Patrese 0 + Boutsen 0 | Patrese 0 + Boutsen 0 | 0 | |
| 5 | Tyrrell Alesi 0 + Nakajima 0 | Alesi 0 + Nakajima 0 | 0 | |
| 6 | Arrows Alboreto 0 + Caffi 0 | Alboreto 0 + Caffi 0 | 0 | |
| 7 | Ligier Larini 0 + Alliot 0 | Larini 0 + Alliot 0 | 0 | |
| 8 | Minardi Martini 0 | Martini 0 | 0 | |
| 9 | Leyton House Gugelmin 0 + Capelli 0 | Gugelmin 0 + Capelli 0 | 0 | |
| 10 | Larrousse Suzuki 0 + Bernard 0 | Suzuki 0 + Bernard 0 | 0 | |
| 11 | Dallara Pirro 0 + de Cesaris 0 | Pirro 0 + de Cesaris 0 | 0 | |
| 12 | Brabham Brabham 0 + Modena 0 | Brabham 0 + Modena 0 | 0 | |
| 13 | Team Lotus Donnelly 0 + Warwick 0 | Donnelly 0 + Warwick 0 | 0 | |
| 14 | AGS Dalmas 0 | Dalmas 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Nigel Mansell Ferrari | Ferrari | 1:22:11.014 | 61 | — | 9 | |
| 2 | Ayrton Senna McLaren | McLaren | +2.808s | 61 | — | 6 | |
| 3 | Alain Prost Ferrari | Ferrari | +4.189s | 61 | — | 4 | |
| 4 | Gerhard Berger McLaren | McLaren | +5.896s | 61 | — | 3 | |
| 5 | Nelson Piquet Benetton | Benetton | +57.418s | 61 | — | 2 | |
| 6 | Alessandro Nannini Benetton | Benetton | +58.249s | 61 | — | 1 | |
| 7 | Riccardo Patrese Williams | Williams | +1 Lap | 60 | — | — | |
| 8 | Jean Alesi Tyrrell | Tyrrell | +1 Lap | 60 | — | — | |
| 9 | Michele Alboreto Arrows | Arrows | +1 Lap | 60 | — | — | |
| 10 | Nicola Larini Ligier | Ligier | +2 Laps | 59 | — | — | |
| 11 | Pierluigi Martini Minardi | Minardi | +2 Laps | 59 | — | — | |
| 12 | Maurício Gugelmin Leyton House | Leyton House | +2 Laps | 59 | — | — | |
| 13 | Alex Caffi Arrows | Arrows | DNF Accident | 58 | — | — | |
| 14 | Aguri Suzuki Larrousse | Larrousse | DNF Accident | 58 | — | — | |
| 15 | Emanuele Pirro Dallara | Dallara | +3 Laps | 58 | — | — | |
| DNF | Philippe Alliot Ligier | Ligier | DNF Accident | 52 | — | — | |
| DNF | David Brabham Brabham | Brabham | DNF Gearbox | 52 | — | — | |
| DNF | Ivan Capelli Leyton House | Leyton House | DNF Engine | 51 | — | — | |
| DNF | Thierry Boutsen Williams | Williams | DNF Engine | 30 | — | — | |
| DNF | Éric Bernard Larrousse | Larrousse | DNF Gearbox | 24 | — | — | |
| DNF | Stefano Modena Brabham | Brabham | DNF Gearbox | 21 | — | — | |
| DNF | Martin Donnelly Team Lotus | Team Lotus | DNF Alternator | 14 | — | — | |
| DNF | Derek Warwick Team Lotus | Team Lotus | DNF Throttle | 5 | — | — | |
| DNF | Yannick Dalmas AGS | AGS | DNF Halfshaft | 3 | — | — | |
| DNF | Andrea de Cesaris Dallara | Dallara | DNF Spun off | 0 | — | — | |
| DNS | Satoru Nakajima Tyrrell | Tyrrell | DNS Withdrew | 0 | — | — |