| «1985-03» | San Marino Grand Prix - V Gran Premio di San Marino |
| 1985-05-05 | 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 |
|---|---|---|---|---|---|---|---|---|
| DSQ | 6 | 2 | Alain Prost | McLaren • TAG Porsche | 60 | 1:33:57.118 | 193.120 km/h | |
| 1 | 3 | 11 | Elio de Angelis | Lotus • Renault | 60 | +38.837 | +38.837 | 9 |
| 2 | 5 | 18 | Thierry Boutsen | Arrows • BMW | 59 | +1 lap | 6 | |
| 3 | 11 | 15 | Patrick Tambay | Renault | 59 | +1 lap | 4 | |
| 4 | 8 | 1 | Niki Lauda | McLaren • TAG Porsche | 59 | +1 lap | 3 | |
| 5 | 7 | 5 | Nigel Mansell | Williams • Honda | 58 | +2 laps | 2 | |
| 6 | 15 | 28 | Stefan Johansson | Ferrari | 57 | out of fuel | 1 | |
| 7 | 1 | 12 | Ayrton Senna | Lotus • Renault | 57 | out of fuel | ||
| 8 | 9 | 7 | Nelson Piquet | Brabham • BMW | 57 | out of fuel | ||
| 9 | 25 | 3 | Martin Brundle | Tyrrell • Ford Cosworth | 56 | +4 laps | ||
| 10 | 14 | 16 | Derek Warwick | Renault | 56 | +4 laps | ||
| 12 | 23 | Eddie Cheever | Alfa Romeo | 50 | engine | |||
| DNC | 22 | 24 | Piercarlo Ghinzani | Osella • Alfa Romeo | 46 | |||
| 4 | 27 | Michele Alboreto | Ferrari | 29 | alternator | |||
| 23 | 9 | Manfred Winkelhock | RAM • Hart | 27 | engine | |||
| 21 | 10 | Philippe Alliot | RAM • Hart | 24 | oil leak | |||
| 2 | 6 | Keke Rosberg | Williams • Honda | 23 | throttle | |||
| 16 | 26 | Jacques Laffite | Ligier • Renault | 22 | turbo | |||
| 19 | 29 | Pierluigi Martini | Minardi • Motori Moderni | 14 | turbo | |||
| 13 | 25 | Andrea de Cesaris | Ligier • Renault | 11 | accident | |||
| 26 | 21 | Mauro Baldi | Spirit • Hart | 9 | electrics | |||
| 20 | 8 | François Hesnault | Brabham • BMW | 5 | engine | |||
| 24 | 4 | Stefan Bellof | Tyrrell • Ford Cosworth | 5 | valve | |||
| 10 | 17 | Gerhard Berger | Arrows • BMW | 4 | ignition | |||
| 18 | 22 | Riccardo Patrese | Alfa Romeo | 4 | turbo | |||
| DNS | 17 | 30 | Jonathan Palmer | Zakspeed | 0 | engine | ||
| WDR | 20 | John Watson | Toleman • Hart | no tyres |
Fastest lap - 01:30.961 - 199.470 km/h - Michele Alboreto (lap 29)