Autódromo do Estoril · 25 September 1988
Alain Prost won the 1988 Portuguese Grand Prix for McLaren from 1st on the grid, 9.553s ahead of Ivan Capelli. Gabriele Tarquini gained the most places, from 26th on the grid to 11th.
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | McLaren Prost 9 + Senna 1 | Prost 9 + Senna 1 | 10 | |
| 2 | March Capelli 6 + Gugelmin 0 | Capelli 6 + Gugelmin 0 | 6 | |
| 3 | Benetton Boutsen 4 + Nannini 0 | Boutsen 4 + Nannini 0 | 4 | |
| 4 | Arrows Warwick 3 + Cheever 0 | Warwick 3 + Cheever 0 | 3 | |
| 5 | Ferrari Alboreto 2 + Berger 0 | Alboreto 2 + Berger 0 | 2 | |
| 6 | Dallara Caffi 0 | Caffi 0 | 0 | |
| 7 | Minardi Pérez-Sala 0 + Martini 0 | Pérez-Sala 0 + Martini 0 | 0 | |
| 8 | AGS Streiff 0 | Streiff 0 | 0 | |
| 9 | Ligier Arnoux 0 + Johansson 0 | Arnoux 0 + Johansson 0 | 0 | |
| 10 | Coloni Tarquini 0 | Tarquini 0 | 0 | |
| 11 | Osella Larini 0 | Larini 0 | 0 | |
| 12 | Williams Mansell 0 + Patrese 0 | Mansell 0 + Patrese 0 | 0 | |
| 13 | Tyrrell Palmer 0 | Palmer 0 | 0 | |
| 14 | Team Lotus Piquet 0 + Nakajima 0 | Piquet 0 + Nakajima 0 | 0 | |
| 15 | Lola Dalmas 0 + Alliot 0 | Dalmas 0 + Alliot 0 | 0 | |
| 16 | Rial de Cesaris 0 | de Cesaris 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Alain Prost McLaren | McLaren | 1:37:40.958 | 70 | — | 9 | |
| 2 | Ivan Capelli March | March | +9.553s | 70 | — | 6 | |
| 3 | Thierry Boutsen Benetton | Benetton | +44.619s | 70 | — | 4 | |
| 4 | Derek Warwick Arrows | Arrows | +1:07.419 | 70 | — | 3 | |
| 5 | Michele Alboreto Ferrari | Ferrari | +1:11.884 | 70 | — | 2 | |
| 6 | Ayrton Senna McLaren | McLaren | +1:18.269 | 70 | — | 1 | |
| 7 | Alex Caffi Dallara | Dallara | +1 Lap | 69 | — | — | |
| 8 | Luis Pérez-Sala Minardi | Minardi | +2 Laps | 68 | — | — | |
| 9 | Philippe Streiff AGS | AGS | +2 Laps | 68 | — | — | |
| 10 | René Arnoux Ligier | Ligier | +2 Laps | 68 | — | — | |
| 11 | Gabriele Tarquini Coloni | Coloni | +5 Laps | 65 | — | — | |
| 12 | Nicola Larini Osella | Osella | +7 Laps | 63 | — | — | |
| DNF | Maurício Gugelmin March | March | DNF Engine | 59 | — | — | |
| DNF | Nigel Mansell Williams | Williams | DNF Spun off | 54 | — | — | |
| DNF | Jonathan Palmer Tyrrell | Tyrrell | DNF Overheating | 53 | — | — | |
| DNF | Alessandro Nannini Benetton | Benetton | DNF Handling | 52 | — | — | |
| DNF | Gerhard Berger Ferrari | Ferrari | DNF Spun off | 35 | — | — | |
| DNF | Nelson Piquet Team Lotus | Team Lotus | DNF Clutch | 34 | — | — | |
| DNF | Riccardo Patrese Williams | Williams | DNF Radiator | 29 | — | — | |
| DNF | Pierluigi Martini Minardi | Minardi | DNF Engine | 27 | — | — | |
| DNF | Yannick Dalmas Lola | Lola | DNF Alternator | 20 | — | — | |
| DNF | Satoru Nakajima Team Lotus | Team Lotus | DNF Spun off | 16 | — | — | |
| DNF | Andrea de Cesaris Rial | Rial | DNF Halfshaft | 11 | — | — | |
| DNF | Eddie Cheever Arrows | Arrows | DNF Turbo | 10 | — | — | |
| DNF | Philippe Alliot Lola | Lola | DNF Engine | 7 | — | — | |
| DNF | Stefan Johansson Ligier | Ligier | DNF Engine | 4 | — | — |