| «1984-04» | San Marino Grand Prix - IV Gran Premio di San Marino |
| 1984-05-06 | Imola - Autodromo Internazionale Enzo e Dino Ferrari - 60 laps × 5.04 km : 302.4 km |
| Pos | Grid | Car | Driver | Constructor | Laps | Time / Gap | Interval | Points |
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 7 | Alain Prost | McLaren • TAG Porsche | 60 | 1:36:53.679 | 187.255 km/h | 9 |
| 2 | 6 | 28 | René Arnoux | Ferrari | 60 | +13.416 | +13.416 | 6 |
| 3 | 11 | 11 | Elio de Angelis | Lotus • Renault | 59 | out of fuel | 4 | |
| 4 | 4 | 16 | Derek Warwick | Renault | 59 | +1 lap | 3 | |
| DSQ | 21 | 4 | Stefan Bellof | Tyrrell • Ford Cosworth | 59 | |||
| 5 | 20 | 18 | Thierry Boutsen | Arrows • Ford Cosworth | 59 | +1 lap | 2 | |
| 6 | 12 | 26 | Andrea de Cesaris | Ligier • Renault | 58 | out of fuel | 1 | |
| 7 | 8 | 23 | Eddie Cheever | Alfa Romeo | 58 | out of fuel | ||
| 8 | 24 | 21 | Mauro Baldi | Spirit • Hart | 58 | +2 laps | ||
| 9 | 25 | 10 | Jonathan Palmer | RAM • Hart | 57 | +3 laps | ||
| DSQ | 22 | 3 | Martin Brundle | Tyrrell • Ford Cosworth | 55 | fuel line | ||
| 23 | 9 | Philippe Alliot | RAM • Hart | 53 | turbo | |||
| 19 | 20 | Johnny Cecotto | Toleman • Hart | 52 | fuel injection | |||
| 1 | 1 | Nelson Piquet | Brabham • BMW | 48 | turbo | |||
| 9 | 2 | Teo Fabi | Brabham • BMW | 48 | turbo | |||
| 26 | 30 | Jo Gartner | Osella • Alfa Romeo | 46 | engine | |||
| 16 | 17 | Marc Surer | Arrows • BMW | 40 | turbo | |||
| 7 | 14 | Manfred Winkelhock | ATS • BMW | 31 | turbo | |||
| 13 | 27 | Michele Alboreto | Ferrari | 23 | exhaust | |||
| 5 | 8 | Niki Lauda | McLaren • TAG Porsche | 15 | engine | |||
| 15 | 5 | Jacques Laffite | Williams • Honda | 11 | engine | |||
| 10 | 22 | Riccardo Patrese | Alfa Romeo | 6 | electrics | |||
| 18 | 12 | Nigel Mansell | Lotus • Renault | 2 | accident | |||
| 3 | 6 | Keke Rosberg | Williams • Honda | 2 | electrics | |||
| 14 | 15 | Patrick Tambay | Renault | 0 | collision | |||
| 17 | 25 | François Hesnault | Ligier • Renault | 0 | collision | |||
| DNQ | 24 | Piercarlo Ghinzani | Osella • Alfa Romeo | |||||
| DNQ | 19 | Ayrton Senna | Toleman • Hart |
Fastest lap - 01:33.275 - 194.522 km/h - Nelson Piquet (lap 48)