Race · Round 4 of 15 · 3 May 1981

1981 San Marino Grand Prix

Nelson Piquet won for Brabham from 5th on the grid at Autodromo Enzo e Dino Ferrari. 11 of the starters were not classified.

Wet · High of 13 °C, 2.8 mm of rain on the day (modelled, Open-Meteo)

How it is modelled

ERA5's reanalysis, through Open-Meteo, of the circuit's whole local day and not the race's hours, for the grid cell the circuit sits in and not the track, so a shower can be missing from it. Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.

Circuit: Autodromo Enzo e Dino FerrariImola, Italy
Winner: Nelson PiquetBrabham
Pole: Gilles Villeneuve
Fastest lap: Gilles Villeneuve
Entries: 3013 classified

Classification

Classification
Pos	Driver	Constructor	Chassis	Grid	Laps	Out	Points	FL
1	Nelson Piquet	Brabham	BT49C	5	60	Finished	9
2	Riccardo Patrese	Arrows	A3	9	60	Finished	6
3	Carlos Reutemann	Williams	FW07C	2	60	Finished	4
4	Héctor Rebaque	Brabham	BT49C	13	60	Finished	3
5	Didier Pironi	Ferrari	126CK	6	60	Finished	2
6	Andrea de Cesaris	McLaren	—	14	60	Finished	1
7	Gilles Villeneuve	Ferrari	126CK	1	60	Finished	0	fastest lap
8	Rene Arnoux	Renault	—	3	59	Finished	0
9	Marc Surer	Ensign	N180B	21	59	Finished	0
10	John Watson	McLaren	—	7	58	Finished	0
11	Patrick Tambay	Theodore	TY01	16	58	Finished	0
12	Alan Jones	Williams	FW07C	8	58	Finished	0
13	Slim Borgudd	ATS	—	24	57	Finished	0
NC	Jean-Pierre Jabouille	Ligier	JS17	18	45	NC	0
DNF	Eliseo Salazar	March	811	23	38	Spun off	0
DNF	Michele Alboreto	Tyrrell	—	17	31	Collision	0
DNF	Beppe Gabbiani	Osella	—	20	31	Collision	0
DNF	Bruno Giacomelli	Alfa Romeo	—	11	28	Collision	0
DNF	Eddie Cheever	Tyrrell	—	19	28	Collision	0
DNF	Mario Andretti	Alfa Romeo	—	12	26	Gearbox	0
DNF	Keke Rosberg	Fittipaldi	F8C	15	14	Engine	0
DNF	Jacques Laffite	Ligier	JS17	10	7	Suspension	0
DNF	Alain Prost	Renault	—	4	3	Gearbox	0
DNF	Miguel Ángel Guerra	Osella	—	22	0	Accident	0
DNQ	Siegfried Stohr	Arrows	A3	—	—	DNQ	0
DNQ	Derek Daly	March	811	—	—	DNQ	0
DNQ	Jan Lammers	ATS	—	—	—	DNQ	0
DNQ	Chico Serra	Fittipaldi	F8C	—	—	DNQ	0
DNQ	Derek Warwick	Toleman	TG181	—	—	DNQ	0
DNQ	Brian Henton	Toleman	TG181	—	—	DNQ	0

A blank chassis is a season the team ran more than one design and no source says which car raced here.

F1DB layout imola-1 · 5.04 km · 22 turns, F1DB’s figures
F1DB, CC BY 4.0 · drawn by Jules Roy
The outline is F1DB’s, for every layout; the trace is OpenStreetMap’s, where it exists.

Grid to flag

Lines run from grid slot to result, ending at the last lap completed. A dashed line ending in a cross is a driver not classified. Nothing between is recorded, so a crossing is not an overtake at that lap.

Grid to flag
Driver	Grid	Result	Laps
Nelson Piquet	5	1	60
Riccardo Patrese	9	2	60
Carlos Reutemann	2	3	60
Héctor Rebaque	13	4	60
Didier Pironi	6	5	60
Andrea de Cesaris	14	6	60
Gilles Villeneuve	1	7	60
Rene Arnoux	3	8	59
Marc Surer	21	9	59
John Watson	7	10	58
Patrick Tambay	16	11	58
Alan Jones	8	12	58
Slim Borgudd	24	13	57
Jean-Pierre Jabouille	18	NC	45
Eliseo Salazar	23	DNF	38
Michele Alboreto	17	DNF	31
Beppe Gabbiani	20	DNF	31
Bruno Giacomelli	11	DNF	28
Eddie Cheever	19	DNF	28
Mario Andretti	12	DNF	26
Keke Rosberg	15	DNF	14
Jacques Laffite	10	DNF	7
Alain Prost	4	DNF	3
Miguel Ángel Guerra	22	DNF	0

Qualifying

Qualifying
Pos	Driver	Constructor	No.	Time	Gap	≈ Distance	Interval
1	Gilles Villeneuve	Ferrari	27	1:34.523	—	0 m	—
2	Carlos Reutemann	Williams	2	1:35.229	+0.706	38 m	+0.706
3	Rene Arnoux	Renault	16	1:35.281	+0.758	40 m	+0.052
4	Alain Prost	Renault	15	1:35.579	+1.056	56 m	+0.298
5	Nelson Piquet	Brabham	5	1:35.733	+1.210	65 m	+0.154
6	Didier Pironi	Ferrari	28	1:35.868	+1.345	72 m	+0.135
7	John Watson	McLaren	7	1:36.241	+1.718	92 m	+0.373
8	Alan Jones	Williams	1	1:36.280	+1.757	94 m	+0.039
9	Riccardo Patrese	Arrows	29	1:36.390	+1.867	100 m	+0.110
10	Jacques Laffite	Ligier	26	1:36.477	+1.954	104 m	+0.087
11	Bruno Giacomelli	Alfa Romeo	23	1:36.776	+2.253	120 m	+0.299
12	Mario Andretti	Alfa Romeo	22	1:36.919	+2.396	128 m	+0.143
13	Héctor Rebaque	Brabham	6	1:37.264	+2.741	146 m	+0.345
14	Andrea de Cesaris	McLaren	8	1:37.382	+2.859	152 m	+0.118
15	Keke Rosberg	Fittipaldi	20	1:37.459	+2.936	157 m	+0.077
16	Patrick Tambay	Theodore	33	1:37.545	+3.022	161 m	+0.086
17	Michele Alboreto	Tyrrell	4	1:37.771	+3.248	173 m	+0.226
18	Jean-Pierre Jabouille	Ligier	25	1:38.140	+3.617	193 m	+0.369
19	Eddie Cheever	Tyrrell	3	1:38.266	+3.743	200 m	+0.126
20	Beppe Gabbiani	Osella	32	1:38.302	+3.779	201 m	+0.036
21	Marc Surer	Ensign	14	1:38.340	+3.817	204 m	+0.038
22	Miguel Ángel Guerra	Osella	31	1:38.773	+4.250	227 m	+0.433
23	Eliseo Salazar	March	17	1:38.827	+4.304	229 m	+0.054
24	Slim Borgudd	ATS	10	1:39.079	+4.556	243 m	+0.252
25	Siegfried Stohr	Arrows	30	1:39.112	+4.589	245 m	+0.033
26	Derek Daly	March	18	1:39.157	+4.634	247 m	+0.045
27	Jan Lammers	ATS	9	1:39.419	+4.896	261 m	+0.262
28	Chico Serra	Fittipaldi	21	1:41.114	+6.591	351 m	+1.695
29	Derek Warwick	Toleman	36	1:43.187	+8.664	462 m	+2.073
30	Brian Henton	Toleman	35	1:49.951	+15.428	823 m	+6.764

Before knock-out qualifying arrived in 2006 there is one time per driver; from 2006, the best lap of each of the three sessions.

How it is derived: distance

Distance at the session-best lap’s average speed, on the layout raced that year.

Pit stops

Pit stops are recorded from 1994. F1DB, the source of every stop here, holds none before then, so this race has no stints to draw.

The cars in this race

The photograph each car's Wikipedia article leads with, from Wikimedia Commons: taken wherever and whenever that was, not necessarily at this race.

A photograph marked unchecked has a file name that does not name the car it is shown for. Most are still the right car, filed under the driver rather than the machine — but nobody has confirmed these one by one.

Where this comes from

Round: 4 of 1981
Grand Prix: San Marino Grand Prix
Dates: 3 May 1981
Layout raced: —
Format: Standard weekend
Constructor: Brabham
Entrant: Brabham-Ford
Confidence: reference

No layout is recorded for this round: this register has no layout timeline for the circuit, and a blank here is better than a guess.