The 1985 San Marino Grand Prix was Round 3 of the 1985 FIA Formula 1 World Championship. The event was held in Imola, Italy on Sunday, 5 May 1985. Ayrton Senna started on pole position in the Lotus Renault and his team-mate Elio De Angelis was the race winner.
5. Gran Premio Di San Marino Race Result
| Pos. | No. | Driver | Nationality | Team | Tyre | Laps | Time/Retired | Race Time | Gap | Interval | Best Lap | Lap | Speed | Started | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 11 | Elio de Angelis | Italy | Lotus Renault | Goodyear | 60 | 1:34:35.955 | 1:34:35.955 | - | - | 1:31.411 | 55 | 191.798 | 3 | 9 |
| 2 | 18 | Thierry Boutsen | Belgium | Arrows BMW | Goodyear | 59 | +1 lap | 1:34:51.890 | 1 lap | 1 lap | 1:33.448 | 47 | 188.073 | 5 | 6 |
| 3 | 15 | Patrick Tambay | France | Renault | Goodyear | 59 | +1 lap | 1:34:54.967 | 1 lap | +3.077 | 1:33.514 | 55 | 187.972 | 11 | 4 |
| 4 | 1 | Niki Lauda | Austria | McLaren TAG | Goodyear | 59 | +1 lap | 1:35:05.399 | 1 lap | +10.432 | 1:32.198 | 25 | 187.628 | 8 | 3 |
| 5 | 5 | Nigel Mansell | Great Britain | Williams Honda | Goodyear | 58 | +2 laps | 1:34:20.912 | 2 laps | 1 lap | 1:33.891 | 33 | 185.897 | 7 | 2 |
| 6 | 28 | Stefan Johansson | Sweden | Ferrari | Goodyear | 57 | Out of Fuel | 1:28:51.307 | 3 laps | 1 lap | 1:31.017 | 56 | 193.987 | 15 | 1 |
| 7 | 12 | Ayrton Senna | Brazil | Lotus Renault | Goodyear | 57 | Out of Fuel | 1:29:14.566 | 3 laps | +23.259 | 1:31.549 | 37 | 193.145 | 1 | |
| 8 | 7 | Nelson Piquet | Brazil | Brabham BMW | Pirelli | 57 | Out of Fuel | 1:30:35.363 | 3 laps | +1:20.797 | 1:31.424 | 50 | 190.273 | 9 | |
| 9 | 3 | Martin Brundle | Great Britain | Tyrrell Ford | Goodyear | 56 | Out of Fuel | 1:34:29.229 | 4 laps | 1 lap | 1:37.887 | 51 | 179.224 | 25 | |
| 10 | 16 | Derek Warwick | Great Britain | Renault | Goodyear | 56 | Out of Fuel | 1:35:09.739 | 4 laps | +40.510 | 1:33.702 | 45 | 177.952 | 14 | |
| DSQ | 2 | Alain Prost | France | McLaren TAG | Goodyear | 60 | Disqualified | 1:33:57.118 | 1:31.925 | 26 | 193.119 | 6 | |||
| DNF | 23 | Eddie Cheever | United States | Alfa Romeo | Goodyear | 50 | Engine | 1:20:42.840 | 1:34.128 | 34 | 187.328 | 12 | |||
| NC | 24 | Piercarlo Ghinzani | Italy | Osella Alfa Romeo | Pirelli | 46 | +14 laps | 1:36:08.701 | 1:36.858 | 26 | 144.681 | 22 | |||
| DNF | 27 | Michele Alboreto | Italy | Ferrari | Goodyear | 29 | Electrical | 52:08.398 | 1:30.961 | 29 | 168.193 | 4 | |||
| DNF | 9 | Manfred Winkelhock | Germany | RAM Hart | Pirelli | 27 | Engine | 44:51.527 | 1:36.708 | 8 | 182.011 | 23 | |||
| DNF | 10 | Philippe Alliot | France | RAM Hart | Pirelli | 24 | Engine | 41:54.358 | 1:35.013 | 20 | 173.187 | 21 | |||
| DNF | 6 | Keke Rosberg | Finland | Williams Honda | Goodyear | 23 | Brakes | 36:45.165 | 1:34.084 | 20 | 189.242 | 2 | |||
| DNF | 26 | Jacques Laffite | France | Ligier Renault | Pirelli | 22 | Turbo | 35:35.716 | 1:35.245 | 20 | 186.901 | 16 | |||
| DNF | 29 | Pierluigi Martini | Italy | Minardi Motori Moderni | Pirelli | 14 | Turbo | 23:34.761 | 1:38.203 | 14 | 179.546 | 19 | |||
| DNF | 25 | Andrea de Cesaris | Italy | Ligier Renault | Pirelli | 11 | Spun Off | 21:06.239 | 1:35.856 | 8 | 157.619 | 13 | |||
| DNF | 21 | Mauro Baldi | Italy | Spirit Hart | Pirelli | 9 | Electrical | 20:52.613 | 1:39.686 | 4 | 130.364 | 26 | |||
| DNF | 8 | Francois Hesnault | France | Brabham BMW | Pirelli | 5 | Engine | 8:40.676 | 1:38.906 | 3 | 174.235 | 20 | |||
| DNF | 4 | Stefan Bellof | Germany | Tyrrell Ford | Goodyear | 5 | Engine | 15:39.169 | 1:38.437 | 3 | 96.596 | 24 | |||
| DNF | 17 | Gerhard Berger | Austria | Arrows BMW | Goodyear | 4 | Engine | 6:41.288 | 1:36.239 | 3 | 180.857 | 10 | |||
| DNF | 22 | Riccardo Patrese | Italy | Alfa Romeo | Goodyear | 4 | Engine | 6:42.419 | 1:36.422 | 3 | 180.349 | 18 | |||
| DNS | 30 | Jonathan Palmer | Great Britain | Zakspeed | Goodyear | 0 | 17 |