| «1984-16» | Portugal Grand Prix - XIII Grande Premio de Portugal |
| 1984-10-21 | Estoril - Autódromo Fernanda Pires da Silva - 70 laps × 4.35 km : 304.5 km |
| Pos | Car | Driver | Constructor | Time | Speed | Lap | Gap |
|---|---|---|---|---|---|---|---|
| 1 | 8 | Niki Lauda | McLaren • TAG Porsche | 01:22.996 | 188.684 km/h | 51 | |
| 2 | 7 | Alain Prost | McLaren • TAG Porsche | 01:23.452 | 187.653 km/h | 39 | +00.456 |
| 3 | 20 | Stefan Johansson | Toleman • Hart | 01:24.053 | 186.311 km/h | 51 | +01.057 |
| 4 | 27 | Michele Alboreto | Ferrari | 01:24.148 | 186.101 km/h | 68 | +01.152 |
| 5 | 12 | Nigel Mansell | Lotus • Renault | 01:24.267 | 185.838 km/h | 47 | +01.271 |
| 6 | 1 | Nelson Piquet | Brabham • BMW | 01:24.275 | 185.820 km/h | 39 | +01.279 |
| 7 | 19 | Ayrton Senna | Toleman • Hart | 01:24.373 | 185.604 km/h | 46 | +01.377 |
| 8 | 5 | Jacques Laffite | Williams • Honda | 01:24.507 | 185.310 km/h | 55 | +01.511 |
| 9 | 16 | Derek Warwick | Renault | 01:25.309 | 183.568 km/h | 20 | +02.313 |
| 10 | 15 | Patrick Tambay | Renault | 01:25.506 | 183.145 km/h | 37 | +02.510 |
| 11 | 6 | Keke Rosberg | Williams • Honda | 01:25.667 | 182.801 km/h | 37 | +02.671 |
| 12 | 11 | Elio de Angelis | Lotus • Renault | 01:25.680 | 182.773 km/h | 45 | +02.684 |
| 13 | 28 | René Arnoux | Ferrari | 01:25.711 | 182.707 km/h | 53 | +02.715 |
| 14 | 23 | Eddie Cheever | Alfa Romeo | 01:26.020 | 182.051 km/h | 33 | +03.024 |
| 15 | 22 | Riccardo Patrese | Alfa Romeo | 01:26.173 | 181.727 km/h | 43 | +03.177 |
| 16 | 2 | Manfred Winkelhock | Brabham • BMW | 01:26.404 | 181.242 km/h | 63 | +03.408 |
| 17 | 14 | Gerhard Berger | ATS • BMW | 01:26.601 | 180.829 km/h | 59 | +03.605 |
| 18 | 26 | Andrea de Cesaris | Ligier • Renault | 01:26.806 | 180.402 km/h | 36 | +03.810 |
| 19 | 33 | Philippe Streiff | Renault | 01:26.874 | 180.261 km/h | 43 | +03.878 |
| 20 | 30 | Jo Gartner | Osella • Alfa Romeo | 01:27.169 | 179.651 km/h | 58 | +04.173 |
| 21 | 18 | Thierry Boutsen | Arrows • BMW | 01:27.725 | 178.512 km/h | 24 | +04.729 |
| 22 | 21 | Mauro Baldi | Spirit • Hart | 01:27.772 | 178.417 km/h | 48 | +04.776 |
| 23 | 24 | Piercarlo Ghinzani | Osella • Alfa Romeo | 01:28.410 | 177.129 km/h | 42 | +05.414 |
| 24 | 17 | Marc Surer | Arrows • BMW | 01:28.635 | 176.680 km/h | 7 | +05.639 |
| 25 | 25 | François Hesnault | Ligier • Renault | 01:29.219 | 175.523 km/h | 19 | +06.223 |
| 26 | 10 | Jonathan Palmer | RAM • Hart | 01:30.711 | 172.636 km/h | 6 | +07.715 |
| 27 | 9 | Philippe Alliot | RAM • Hart | 01:35.542 | 163.907 km/h | 2 | +12.546 |