F1/Seasons/1991/Round 13
1991 · Round 13 of 16

Portuguese Grand Prix

September 22, 1991 · Autódromo do Estoril · Estoril · Portugal
Patrese
WINNER
Riccardo Patrese · Williams · from grid 1
FASTEST LAP
Lap timing starts in 2004. This race has none.
+12
MOST PLACES GAINED
Érik Comas · grid 23 to P11
17 of 26
CLASSIFIED
8 retired · 1 disqualified

01/Classification

26 cars
Finishing order
PosDriverConstructorGrid+/-LapsTime / statusPtsFastest lap
1Riccardo PatreseWilliams10711:35:42.30410
2Ayrton SennaMcLaren3+171+20.9416
3Jean AlesiFerrari6+371+53.5544
4Pierluigi MartiniMinardi8+471+1:03.4983
5Nelson PiquetBenetton11+671+1:10.0332
6Michael SchumacherBenetton10+471+1:16.5821
7Maurício GugelminLeyton House7070+1 Lap0
8Andrea de CesarisJordan14+670+1 Lap0
9Gianni MorbidelliMinardi13+470+1 Lap0
10Roberto MorenoJordan21+1170+1 Lap0
11Érik ComasLigier23+1270+1 Lap0
12Martin BrundleBrabham19+769+2 Laps0
13Satoru NakajimaTyrrell17+468+3 Laps0
14Mika HäkkinenTeam Lotus24+1068+3 Laps0
15Michele AlboretoFootwork22+768+3 Laps0
16Thierry BoutsenLigier20+468+3 Laps0
17Ivan CapelliLeyton House9-864Spun off0
RStefano ModenaTyrrell1256Engine0
DNigel MansellWilliams451Disqualified0
RAguri SuzukiLola2540Transmission0
RAlain ProstFerrari539Engine0
RGerhard BergerMcLaren237Engine0
REmanuele PirroDallara1618Engine0
RJyrki JärvilehtoDallara1821Gearbox0
RMark BlundellBrabham1512Suspension0
RJohnny HerbertTeam Lotus261Engine0

Ordered on the source’s position column and printed from position_text. Those two disagree on purpose: position is a sort key that is never null, and position_text is what happened to the car. 9 of 26 cars here were not classified (8 retired, 1 disqualified). Across the archive that is 9,612 of 26,048 result rows, so a page that printed the sort key would tell more than a third of every field it finished.


02/Grid to finish

17 of 26 cars
Grid minus finishing position
PLACES GAINED
DriverConstructorGridFin+/-
Érik ComasLigier2311+12
Roberto MorenoJordan2110+11
Mika HäkkinenTeam Lotus2414+10
Martin BrundleBrabham1912+7
Michele AlboretoFootwork2215+7
PLACES LOST
DriverConstructorGridFin+/-
Ivan CapelliLeyton House917-8

Movement is grid minus finishing position, and it is computed for 17 of the 26 cars entered. It is left blank for the other 9: a car that was not classified has no finishing position to subtract from, and no car here carries grid 0, the value the source uses for a pit lane start or for no recorded grid slot. Scoring a grid of 0 as a gain of every place on the grid is the arithmetic this rule exists to stop; 266 of 26,048 rows across the archive are grid 0, and 40 of those were classified.


03/The 1991 season

16 rounds
MAR 10 to NOV 3
RdDateGrand PrixCircuitWinnerConstructorCars
1MAR 10United States Grand PrixPhoenix street circuitAyrton SennaMcLaren26
2MAR 24Brazilian Grand PrixAutódromo José Carlos PaceAyrton SennaMcLaren26
3APR 28San Marino Grand PrixAutodromo Enzo e Dino FerrariAyrton SennaMcLaren26
4MAY 12Monaco Grand PrixCircuit de MonacoAyrton SennaMcLaren26
5JUN 2Canadian Grand PrixCircuit Gilles VilleneuveNelson PiquetBenetton26
6JUN 16Mexican Grand PrixAutódromo Hermanos RodríguezRiccardo PatreseWilliams26
7JUL 7French Grand PrixCircuit de Nevers Magny-CoursNigel MansellWilliams26
8JUL 14British Grand PrixSilverstone CircuitNigel MansellWilliams26
9JUL 28German Grand PrixHockenheimringNigel MansellWilliams26
10AUG 11Hungarian Grand PrixHungaroringAyrton SennaMcLaren26
11AUG 25Belgian Grand PrixCircuit de Spa-FrancorchampsAyrton SennaMcLaren26
12SEP 8Italian Grand PrixAutodromo Nazionale di MonzaNigel MansellWilliams26
13SEP 22Portuguese Grand PrixAutódromo do EstorilRiccardo PatreseWilliams26
14SEP 29Spanish Grand PrixCircuit de Barcelona-CatalunyaNigel MansellWilliams26
15OCT 20Japanese Grand PrixSuzuka CircuitGerhard BergerMcLaren26
16NOV 3Australian Grand PrixAdelaide Street CircuitAyrton SennaMcLaren26

Every figure here is one race, read from f1_results and f1_races. The finishing order is the source’s position column; the printed position is position_text, which is a letter on 9,612 of 26,048 rows across the archive (R retired 9,089, W withdrew 364, D disqualified 159). Grid 0 is a pit lane start and prints as PIT, not as a place ahead of pole; 266 of 26,048 rows are grid 0. Time is a total for the winner and a gap to the car ahead for everyone else, and it is present on 8,508 of 26,048 rows only, so most of the archive shows the status instead; where both exist and the status is not “Finished” the status is printed beside the time, because 8,335 of 16,436 classified rows finished lapped or otherwise not cleanly. The fastest lap column is empty before 2004: the source carries lap timing on 8,977 of 26,048 rows and a ranked fastest lap in 447 of 1,161 races, and speed on 8,238 of those, none after 2024. Points are printed as the source stores them and are never rounded to a whole number: 38 of 26,048 rows are fractional (0.5, 1.33, 3.14), which is half points for a shortened race and a split score for a shared car, and every one of them is real. Three races (1951 French, 1956 Argentine, 1957 British) print two cars as first, because two drivers shared one car and the record books credit both; in those three the source hangs the race points on other rows, which is why 5 of 1,164 winning rows across the archive print zero points. Constructors carry no logo in any f1_* table, so none is drawn and none is invented. The 1991 season is complete at 16 rounds.