1990 Monaco Grand Prix

At the start there was an overly long delay between the red and green lights, which caused the drivers to be a little more agitated than usual, resulting in an accident between Prost and Berger at the Mirabeau corner. The track was blocked and the race had to be stopped. At the second start everything went to plan and Senna led from Prost, Alesi, Berger, Patrese and Boutsen, with Pirro being the first retirement when his engine blew on the opening lap. Eighth-placed Nigel Mansell was the centre of action in the early stages, quickly passing Martini before setting off after Boutsen, but his overtaking attempt on the Belgian was unsuccessful as he touched the back of the Williams at the seafront chicane and had to limp back to the pits for a new front wing. At the front Senna led comfortably, even more so after Prost retired on lap 30 with battery problems. On lap 35, Piquet spun approaching Loewes Hairpin and stalled his engine; he received a push start from the marshals and was disqualified as a result. While Senna maintained his lead, there was action further back where Mansell was charging through the field. First he disposed of Derek Warwick and then managed to successfully pass Boutsen for fourth, as Alesi and Berger fought over second place. In the late stages Senna started to slow, which allowed Alesi and Berger to close up on him, but Senna's McLaren survived to the finish for his third career win at Monaco. Alesi was second, followed by Berger, Boutsen, Alex Caffi and the only other survivor, Éric Bernard, who had taken sixth place in the late stages after he had forced himself past Gregor Foitek's Onyx by pushing him into the wall. In doing so, Bernard earned his first point in Formula One. Despite not finishing the race, Foitek was classified seventh, his best F1 result.

Pos	No	Driver	Constructor	Laps	Time/Retired	Grid	Points
1	27	Ayrton Senna	McLaren-Honda	78	1:52:46.982	1	9
2	4	Jean Alesi	Tyrrell-Ford	78	+ 1.087	3	6
3	28	Gerhard Berger	McLaren-Honda	78	+ 2.073	5	4
4	5	Thierry Boutsen	Williams-Renault	77	+ 1 lap	6	3
5	10	Alex Caffi	Arrows-Ford	76	+ 2 laps	22	2
6	29	Éric Bernard	Lola-Lamborghini	76	+ 2 laps	24	1
7	35	Gregor Foitek	Onyx-Ford	72	Collision	20
Ret	11	Derek Warwick	Lotus-Lamborghini	66	Spun off	13
Ret	2	Nigel Mansell	Ferrari	63	Battery	7
Ret	24	Paolo Barilla	Minardi-Ford	52	Gearbox	19
Ret	36	JJ Lehto	Onyx-Ford	52	Gearbox	26
Ret	26	Philippe Alliot	Ligier-Ford	47	Gearbox	18
Ret	6	Riccardo Patrese	Williams-Renault	41	Distributor	4
Ret	22	Andrea de Cesaris	Dallara-Ford	38	Engine	12
Ret	3	Satoru Nakajima	Tyrrell-Ford	36	Spun off	21
Ret	1	Alain Prost	Ferrari	30	Battery	2
Ret	19	Alessandro Nannini	Benetton-Ford	20	Gearbox	16
Ret	7	David Brabham	Brabham-Judd	16	Transmission	25
Ret	16	Ivan Capelli	Leyton House-Judd	13	Brakes	23
Ret	25	Nicola Larini	Ligier-Ford	12	Differential	17
Ret	30	Aguri Suzuki	Lola-Lamborghini	11	Steering	15
Ret	23	Pierluigi Martini	Minardi-Ford	7	Electrical	8
Ret	12	Martin Donnelly	Lotus-Lamborghini	6	Gearbox	11
Ret	8	Stefano Modena	Brabham-Judd	3	Transmission	14
Ret	21	Emanuele Pirro	Dallara-Ford	0	Engine	9
DSQ	20	Nelson Piquet	Benetton-Ford	34	Push start	10
DNQ	9	Michele Alboreto	Arrows-Ford
DNQ	14	Olivier Grouillard	Osella-Ford
DNQ	15	Maurício Gugelmin	Leyton House-Judd
DNQ	33	Roberto Moreno	EuroBrun-Judd
DNPQ	17	Gabriele Tarquini	AGS-Ford
DNPQ	18	Yannick Dalmas	AGS-Ford
DNPQ	34	Claudio Langes	EuroBrun-Judd
DNPQ	31	Bertrand Gachot	Coloni-Subaru
DNPQ	39	Bruno Giacomelli	Life
Source:[2]

Drivers' Championship standings Pos Driver Points 1 Ayrton Senna 22 2 Gerhard Berger 16 3 Jean Alesi 13 4 Alain Prost 12 5 Riccardo Patrese 9 Source:[3]

Constructors' Championship standings Pos Constructor Points 1 McLaren-Honda 38 2 Williams-Renault 18 3 Ferrari 15 4 Tyrrell-Ford 14 5 Benetton-Ford 10 Source:[3]

• Note: Only the top five positions are included for both sets of standings.

43°44′4.74″N 7°25′16.8″E / 43.7346500°N 7.421333°E / 43.7346500; 7.421333