The United States Grand Prix 2015 was the 16th round of the 2015 F1 season, and took place at the Circuit of the Americas in Austin, USA, on October 25th.
Lewis Hamilton won the race after starting in the 2nd position, followed by Nico Rosberg, who originally had the pole position, and Sebastian Vettel completing the podium with an expectacular comeback, all the way from the 13th position of the grid.
Final results
1
1
HAM
Lewis Hamilton
Mercedes
1:50:52.703
Finished
2
1
ROS
Nico Rosberg
Mercedes
+2.850
Finished
3
10
VET
Sebastian Vettel
Ferrari
+3.381
Finished
4
4
VER
Max Verstappen
Toro Rosso
+22.359
Finished
5
-
PER
Sergio Pérez
Force India
+24.413
Finished
6
5
BUT
Jenson Button
McLaren
+28.058
Finished
7
13
SAI
Carlos Sainz
Toro Rosso
+30.619
Finished
8
4
MAL
Pastor Maldonado
Lotus F1
+32.273
Finished
9
6
NAS
Felipe Nasr
Sauber
+40.257
Finished
10
7
RIC
Daniel Ricciardo
Red Bull
+53.371
Finished
11
2
ALO
Fernando Alonso
McLaren
+54.816
Finished
12
5
RSS
Alexander Rossi
Manor Marussia
+1:15.277
Finished
13
9
KVY
Daniil Kvyat
Red Bull
Accident
14
8
HUL
Nico Hülkenberg
Force India
Accident
15
1
ERI
Marcus Ericsson
Sauber
Retired
16
2
RAI
Kimi Räikkönen
Ferrari
Brake duct
17
10
MAS
Felipe Massa
Williams
Retired
18
8
GRO
Romain Grosjean
Lotus F1
Retired
19
3
BOT
Valtteri Bottas
Williams
Retired
20
1
STE
Will Stevens
Manor Marussia
Retired
Show all
Race evolution
Pit Stops
0
1
BOT
GRO
RSS
ALO
2
NAS
3
NAS
4
BOT
5
6
7
8
9
GRO
10
11
12
13
14
15
16
ERI
17
BUT
NAS
RSS
18
HAM
VET
VER
MAS
MAL
ALO
19
RIC
ROS
KVY
PER
RAI
SAI
HUL
ERI
20
RAI
21
22
23
24
25
26
ALO
NAS
27
VET
HUL
SAI
PER
BUT
MAL
RSS
28
VER
29
30
31
32
33
34
35
36
37
38
ROS
KVY
RIC
39
40
41
42
NAS
43
HAM
VET
SAI
MAL
44
BUT
45
46
47
48
49
50
RIC
51
52
53
54
55
56
There were a total of 47 pit stops during the race.
The most popular pit stop windows were:
- Laps 1-4: 7 stops
- Laps 16-20: 19 stops
- Laps 26-28: 10 stops
- Laps 42-44: 6 stops
The fastest pit stop was Lewis Hamilton's, stopping the clock at 24.088 seconds during his pit stop on lap 43, while the slowest one was was Carlos Sainz's, who stopped the clock at 44.582 seconds, 20.494 seconds slower than Hamilton, during his pit stop on lap 27.
These times include the time the driver spent going through the pit lane, as well as the actual time he stopped for the mechanics to work on his car.
Strategy
The race was not obvious in terms of pit stop strategy, with different teams and different drivers choosing to make anywhere from 1 to 5 stops.
The race winner, Lewis Hamilton, was on a 2 stops strategy.
1 stop
-
10Felipe Massa
2 stops
-
3Valtteri Bottas
-
8Romain Grosjean
-
1Marcus Ericsson
-
1Lewis Hamilton
-
4Max Verstappen
-
1Nico Rosberg
-
9Daniil Kvyat
-
-Sergio Pérez
-
2Kimi Räikkönen
-
8Nico Hülkenberg
3 stops
-
5Alexander Rossi
-
2Fernando Alonso
-
5Jenson Button
-
10Sebastian Vettel
-
4Pastor Maldonado
-
7Daniel Ricciardo
-
13Carlos Sainz
5 stops
-
6Felipe Nasr
Excluding those drivers who could not finish the race, those on a 2 stops strategy lost an average of 1 positions, the ones on a 3 stops strategy gained 4 positions on average, while those on a 5 stops strategy gained 6 positions on average.
Despite of the average possitons gained or lost, and considering a deeper analysis of the performance of each strategy, we consider the 3 stops strategy as the optimal for this race, even if Lewis Hamilton managed to win the race making 2 stops.
It is important to note that this might not always be the case for other races held at the Circuit of the Americas, as the conditions might change from year to year, in terms of wheel degradation, accidents, safety cars, etc.
Incidents
The reace did not end without incidents... 8 drivers out of the original 20 who started did not managed to cross the finish line.
These included, Daniil Kvyat, and Nico Hülkenberg, both had to retire due to an accident, Marcus Ericsson, Felipe Massa, Romain Grosjean, Valtteri Bottas, and Will Stevens, all of whom had to retire, and Kimi Räikkönen, who had a problem with one of the brake ducts of the car on lap 25.
Accident
-
Daniil KvyatLap 41
-
Nico HülkenbergLap 35
Retired
-
Marcus EricssonLap 25
-
Felipe MassaLap 23
-
Romain GrosjeanLap 10
-
Valtteri BottasLap 5
-
Will StevensLap 1
Brake duct
-
Kimi RäikkönenLap 25
Qualifying
#1
ROS
#2
HAM
#3
RIC
#4
KVY
#5
VET
#6
PER
#7
HUL
#8
RAI
#9
MAS
#10
VER
#11
ALO
#12
BOT
#13
GRO
#14
BUT
#15
MAL
#16
ERI
#17
NAS
#18
RSS
#19
STE
#20
SAI
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managed to get the pole position by 0 seconds and a final lipe time of . was right behind him, helping score a one-two and monopolize the first line of the grid.
The second line fo the grid was dominated by , with in third position, and in fourth.
But the team pairings didn't stop there, as the two s were right behind them, with in fith position, and in sixth.
Track evolution
Q1
0.375
seconds slower
Q2
0
seconds faster
Q3
The conditions of the track got worse between the two sessions of the qualifying, and only 3 drivers were able to improve their Q1 times.
The Q3 is the time were all the remaining drivers put all their cards on the table, even those with a superior car who might have been managing their times in Q1 and Q2 push their cars to the limit in Q3. However, the conditions of the track worsened from Q2 to Q3, and none of the drivers were able to improve their Q2 times.