1986 Portuguese Grand Prix

The 1986 Portuguese Grand Prix, otherwise known as the XV Grande Prémio de Portugal, was the fourteenth round of the FIA Formula One World Championship, staged at the Autódromo do Estoril on the 21 September 1986.'Portuguese GP, 1986', grandprix.com, (Inside F1 Inc., 2015), http://www.grandprix.com/gpe/rr434.html, (Accessed 30/03/2019) The race would see Nigel Mansell claim victory to extend his Championship lead, as secured the Constructors' Championship with two races to spare.
The race came amid another wave of announcements for , most notably including the withdrawal of Pirelli as a tyre supplier, and as an engine supplier. , meanwhile, announced that they had signed Gerhard Berger to partner Michele Alboreto, leaving Stefan Johansson without a seat for the next campaign.
Qualifying had seen Ayrton Senna rediscover his early season form as he grabbed pole for , beating Mansell by over eight tenths of a second. Alain Prost was next ahead of Berger, with Teo Fabi ahead of the fourth man in the title fight Nelson Piquet.
The start of the race would see Mansell power past Senna off the grid, with the rest of the field thundering into the first corner behind them. Berger and Piquet, meanwhile, would get the jump on Prost, leaving the Frenchman to fend off Fabi during the opening tour.
Senna would send a series of attacks at Mansell early on,although the British racer was able to swat those efforts aside without issue. Indeed, the #5 Williams was soon able to escape the clutches of the Lotus, with Senna himself quickly left in a lonely second.
The race quickly developed into a rather tepid event, with the only major changes coming as Berger tried in vain to stay among the leaders. Mansell, meanwhile, was able to pit for fresh tyres and rejoin without losing the lead, while Senna would only briefly lose second to a recovering Prost when he stopped.
Onto the final lap, however, and Senna's title hopes were to evaporate, the Brazilian running out of fuel mid-lap and hence promoted Prost and Piquet. Indeed, as Mansell swept across the line to claim the win a frustrated Senna climbed out of his cockpit, eventually being classified in fourth place behind Prost and Piquet.
That late retirement removed Senna from the Championship, for he was now nineteen points behind the leading Mansell in fourth. The Brit himself had established a ten point lead after his fifth win of the season, with Piquet and Prost a point apart in second and third.
==Background==
Nigel Mansell had effectively extended his Championship lead in Italy, although his teammate Nelson Piquet had emerged as his biggest threat to the title. Indeed, the Brazilian was now just five off his teammate arriving in Portugal, with Alain Prost in third, eight off the lead after his disqualification and retirement in Italy. Ayrton Senna, meanwhile, was on the verge of dropping out of the title fight, landing in Estoril thirteen off the lead.
In the Constructors' Championship it looked likely that would take the crown in Portugal, with their Italian one-two leaving them with 117 points. could still mathematically beat the Anglo-Japanese effort, although they would have to claim first and second in all three remaining races without Williams-Honda scoring. Indeed, they were instead in a fight to consolidate second, with still a threat.
===Entry List===
The full entry list for the is outlined below:
No. 	Driver 	Entrant 	Constructor 	Chassis 	Engine 	Model 	Tyre
1 	Alain Prost 	Marlboro McLaren International 	 	MP4/2C 	 	TTE PO1 1.5 V6t 	
2 	Keke Rosberg 	Marlboro McLaren International 	 	MP4/2C 	 	TTE PO1 1.5 V6t 	
3 	Martin Brundle 	Data General Team Tyrrell 	 	015 	 	EF15 1.5 V6t 	
4 	Philippe Alliot 	Data General Team Tyrrell 	 	015 	 	EF15 1.5 V6t 	
5 	Nigel Mansell 	Canon Williams Honda Team 	 	FW11 	 	RA166E 1.5 V6t 	
6 	Nelson Piquet 	Canon Williams Honda Team 	 	FW11 	 	RA166E 1.5 V6t 	
7 	Riccardo Patrese 	Motor Racing Developments Ltd. 	 	BT55 	 	M12/13/1 1.5 L4t 	
8 	Derek Warwick 	Motor Racing Developments Ltd. 	 	BT55 	 	M12/13/1 1.5 L4t 	
11 	Johnny Dumfries 	John Player Special Team Lotus 	 	98T 	 	EF15B 1.5 V6t 	
12 	Ayrton Senna 	John Player Special Team Lotus 	 	98T 	 	EF15B 1.5 V6t 	
14 	Jonathan Palmer 	West Zakspeed Racing 	 	861 	 	1500/4 1.5 L4t 	
15 	Alan Jones 	Team Haas (USA) Ltd. 	 	THL2 	 	GBA 1.5 V6t 	
16 	Patrick Tambay 	Team Haas (USA) Ltd. 	 	THL2 	 	GBA 1.5 V6t 	
17 	Christian Danner 	Barclay Arrows BMW 	 	A8 	 	M12/13 1.5 L4t 	
18 	Thierry Boutsen 	Barclay Arrows BMW 	 	A8 	 	M12/13 1.5 L4t 	
19 	Teo Fabi 	Benetton Formula 	 	B186 	 	M12/13 1.5 L4t 	
20 	Gerhard Berger 	Benetton Formula 	 	B186 	 	M12/13 1.5 L4t 	
21 	Piercarlo Ghinzani 	Osella Squadra Corse 	 	FA1G 	 	890T 1.5 V8t 	
22 	Allen Berg 	Osella Squadra Corse 	 	FA1F 	 	890T 1.5 V8t 	
23 	Andrea de Cesaris 	Minardi F1 Team 	 	M186 	 	615-90 1.5 V6t 	
24 	Alessandro Nannini 	Minardi F1 Team 	 	M185B 	 	615-90 1.5 V6t 	
25 	René Arnoux 	Equipe Ligier 	 	JS27 	 	EF15 1.5 V6t 	
26 	Philippe Alliot 	Equipe Ligier 	 	JS27 	 	EF15 1.5 V6t 	
27 	Michele Alboreto 	Scuderia Ferrari SpA SEFAC 	 	F1/86 	 	032 1.5 V6t 	
28 	Stefan Johansson 	Scuderia Ferrari SpA SEFAC 	 	F1/86 	 	032 1.5 V6t 	
29 	Huub Rothengatter 	West Zakspeed Racing 	 	861 	 	1500/4 1.5 L4t 	
31 	Ivan Capelli 	Jolly Club SpA 	 	JH21C 	 	615-90 1.5 V6t 	
Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Entrants', statsf1.com, (Stats F1, 2015), https://www.statsf1.com/en/1986/portugal/engages.aspx, (Accessed 30/03/2019)
==Practice Overview==
==Qualifying==
===Friday Qualifying===
===Saturday Qualifying===
===Qualifying Results===
The full qualifying results for the are outlined below:
Pos. 	No. 	Driver 	Constructor 	Time 	Time 	Gap
Pos. 	No. 	Driver 	Constructor 	Q1 	Q2 	Gap
1 	12 	Ayrton Senna 	 	1:19.943 	1:16.673 	—
2 	5 	Nigel Mansell 	 	1:19.047 	1:17.489 	+0.816s
3 	1 	Alain Prost 	 	1:19.692 	1:17.710 	+1.037s
4 	20 	Gerhard Berger 	 	1:19.923 	1:17.742 	+1.069s
5 	19 	Teo Fabi 	 	1:20.957 	1:18.071 	+1.398s
6 	6 	Nelson Piquet 	 	1:19.410 	1:18.180 	+1.507s
7 	2 	Keke Rosberg 	 	1:20.556 	1:18.360 	+1.687s
8 	28 	Stefan Johansson 	 	1:21.621 	1:19.332 	+2.659s
9 	7 	Riccardo Patrese 	 	1:21.257 	1:19.637 	+2.964s
10 	25 	René Arnoux 	 	1:21.876 	1:19.657 	+2.984s
11 	26 	Philippe Alliot 	 	1:21.693 	1:19.769 	+3.096s
12 	8 	Derek Warwick 	 	1:23.455 	1:19.882 	+3.209s
13 	27 	Michele Alboreto 	 	1:21.123 	1:20.019 	+3.346s
14 	16 	Patrick Tambay 	 	1:22.396 	1:20.761 	+4.088s
15 	11 	Johnny Dumfries 	 	1:23.778 	1:21.594 	+4.921s
16 	23 	Andrea de Cesaris 	 	1:23.361 	1:21.611 	+4.938s
17 	15 	Alan Jones 	 	1:22.612 	1:21.646 	+4.973s
18 	24 	Alessandro Nannini 	 	1:24.724 	1:21.702 	+5.029s
19 	3 	Martin Brundle 	 	1:25.114 	1:21.835 	+5.162s
20 	14 	Jonathan Palmer 	 	1:23.941 	1:21.929 	+5.256s
21 	18 	Thierry Boutsen 	 	1:23.412 	1:22.068 	+5.395s
22 	17 	Christian Danner 	 	1:24.665 	1:22.274 	+5.601s
23 	4 	Philippe Streiff 	 	1:23.895 	1:22.388 	+5.715s
24 	21 	Piercarlo Ghinzani 	 	1:26.552 	1:23.566 	+6.893s
25 	31 	Ivan Capelli 	 	1:25.795 	1:23.987 	+7.314s
26 	29 	Huub Rothengatter 	 	1:25.928 	1:24.105 	+7.432s
27 	22 	Allen Berg 	 	1:29.724 	1:26.861 	+10.188s
Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)	Source:'6 Grande Premio de Portugal - QUALIFYING 1', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-1.html, (Accessed 30/03/2019)'6 Grande Premio de Portugal - QUALIFYING 2', formula1.com, (Formula One World Championship Ltd., 2019), https://www.formula1.com/en/results.html/1986/races/511/portugal/qualifying-2.html, (Accessed 30/03/2019)'Portugal 1986: Qualifications', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/qualification.aspx, (Accessed 30/03/2019)
*T Indicates a driver used their test/spare car to set their best time in that session.
*Bold indicates a driver's best/qualifying time.
===Grid===
==Race==
===Report===
===Results===
The full results for the are outlined below:
Pos. 	No. 	Driver 	Constructor 	Laps 	Time/Retired 	Grid 	Points
1 	5 	Nigel Mansell 	 	70 	1:37:21.900 	2 	9
2 	1 	Alain Prost 	 	70 	+18.772s 	3 	6
3 	6 	Nelson Piquet 	 	70 	+49.274s 	6 	4
4* 	12 	Ayrton Senna 	 	69 	Out of fuel 	1 	3
5 	27 	Michele Alboreto 	 	69 	+1 Lap 	13 	2
6 	28 	Stefan Johansson 	 	69 	+1 Lap 	8 	1
7 	25 	René Arnoux 	 	69 	+1 Lap 	10 	
8 	19 	Teo Fabi 	 	68 	+2 Laps 	5 	
9 	11 	Johnny Dumfries 	 	68 	+2 Laps 	15 	
10 	18 	Thierry Boutsen 	 	67 	+3 Laps 	21 	
11 	17 	Christian Danner 	 	67 	+3 Laps 	22 	
12 	14 	Jonathan Palmer 	 	67 	+3 Laps 	20 	
13 	22 	Allen Berg 	 	63 	+7 Laps 	27 	
Ret 	7 	Riccardo Patrese 	 	62 	Engine 	9 	
NC† 	16 	Patrick Tambay 	 	62 	+8 Laps 	14 	
Ret 	24 	Alessandro Nannini 	 	60 	Gearbox 	18 	
Ret 	20 	Gerhard Berger 	 	44 	Spin 	4 	
Ret 	23 	Andrea de Cesaris 	 	43 	Spin 	16 	
Ret 	2 	Keke Rosberg 	 	41 	Electrical 	7 	
Ret 	8 	Derek Warwick 	 	41 	Electrical 	12 	
Ret 	26 	Philippe Alliot 	 	39 	Engine 	11 	
Ret 	4 	Philippe Streiff 	 	28 	Engine 	23 	
Ret 	3 	Martin Brundle 	 	18 	Engine 	19 	
Ret 	15 	Alan Jones 	 	10 	Brakes 	17 	
Ret 	29 	Huub Rothengatter 	 	9 	Transmission 	26 	
Ret 	21 	Piercarlo Ghinzani 	 	8 	Engine 	24 	
Ret 	31 	Ivan Capelli 	 	6 	Transmission 	25 	
Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)	Source:'Portugal 1986: Result', statsf1.com, (Stats F1, 2016), https://www.statsf1.com/en/1986/portugal/classement.aspx, (Accessed 30/03/2019)
*T Indicates a driver used their test/spare car.
==Milestones==
* declared as the FIA Formula One World Championship Constructors Champions.
** This was the third Constructors Championship victory for Williams as a constructor.'14. Portugal 1986', statsf1.com, (Stats F1, 2014), https://www.statsf1.com/en/1986/portugal.aspx, (Accessed 30/03/2019)
** Honda recorded their maiden Constructors Championship triumph as an engine supplier.
* entered their 100th chassis as a registered constructor.'1986 Portuguese GP', chicanef1.com, (Chicane F1, 2015), http://www.chicanef1.com/racetit.pl?year=1986&gp=Portuguese%20GP&r=1, (Accessed 30/03/2019)
* 50th Grand Prix start for a engine.
* Twentieth entry for Philippe Streiff.
* Seventh victory for Nigel Mansell.
* Williams earned their 31st win as a constructor.
** Williams also set a new record for most fastest laps in a season - 9.
** Honda secured their sixteenth victory as an engine supplier.
* Alain Prost scored the 40th podium finish for TAG Porsche as an engine supplier.
* Nelson Piquet recorded the 80th podium finish for a Williams chassis.
* Andrea de Cesaris and Alessandro Nannini set a new record for most retirements in a season - 13.
==Standings==
Victory moved Nigel Mansell ten points clear in the Championship with two races to go, meaning he could take the title with victory in Mexico. Indeed, either Nelson Piquet or Alain Prost would have to finish ahead of the Brit, and claim points, to keep the title fight alive, with Prost having to claim fourth or better regardless. Ayrton Senna, meanwhile, had fallen out of the title fight with two rounds to go, his late retirement ensuring he was nineteen off Mansell, with eighteen points to fight for.
In contrast the battle for the 1986 Constructors' Championship was over, for had built an unassailable lead with two rounds to go. Indeed, their tally of 130 left them 49 points clear of , with the Anglo-German alliance effectively guaranteed second as consolidation. still had a mathematical chance of beating them to the runner-up spot, but would have to claim first and second in both of the remaining races to do so.
 
World Championship for Drivers	World Championship for Drivers	World Championship for Drivers	World Championship for Drivers
Pos. 	Driver 	Pts. 	+/-
1 	Nigel Mansell 	70 	
2 	Nelson Piquet 	60 	
3 	Alain Prost 	59 	
4 	Ayrton Senna 	51 	
5 	Keke Rosberg 	22 	
6 	Stefan Johansson 	19 	
7 	Jacques Laffite 	14 	
8 	Michele Alboreto 	14 	1
9 	René Arnoux 	14 	1
10 	Gerhard Berger 	8 	
11 	Martin Brundle 	5 	
12 	Alan Jones 	4 	
13 	Johnny Dumfries 	2 	
14 	Patrick Tambay 	2 	
15 	Teo Fabi 	2 	
16 	Riccardo Patrese 	2 	
17 	Philippe Streiff 	1 	
18 	Christian Danner 	1 	
World Championship for Constructors	World Championship for Constructors	World Championship for Constructors	World Championship for Constructors
Pos. 	Team 	Pts. 	+/-
1 	 	130 	
2 	 	81 	
3 	 	53 	
4 	 	33 	
5 	 	28 	
6 	 	10 	
7 	 	6 	
8 	 	6 	
9 	 	2 	
10 	 	1 	
Only point scoring drivers and constructors are shown.
==References==
Images and Videos:
* 
References:
Category:Grand Prix articles
Category:Grand Prix articles
Category:1986 Grands Prix
Category:Portuguese Grand Prix