Valtteri Bottas led Lewis Hamilton as Mercedes dominated opening practice for Formula 1’s United States Grand Prix.
Formula 1 has returned to the country for the first time since 2019 after its pandemic-enforced absence in 2020, with Circuit of the Americas welcoming back the championship.
Bottas, whose Mercedes W12 has been equipped with a fresh Internal Combustion Engine – his sixth of the season – set a time of 1:34.874s in hot and sunny conditions in Austin.
Bottas finished just 0.045s clear of Mercedes team-mate Lewis Hamilton as the squad laid down a marker.
Championship leader Max Verstappen was third but classified over nine-tenths of a second behind previous race winner Bottas.
Ferrari fronts the chasing pack
Ferrari placed fourth and fifth respectively, with Charles Leclerc ahead of Carlos Sainz, as he recovered from an early spin across the bumps through Turns 4 and 5.
AlphaTauri’s Pierre Gasly preserved his strong 2021 form by taking sixth while Red Bull’s Sergio Perez was a subdued seventh and had a brush with Haas’ Mick Schumacher during the closing stages.
Perez claimed the inside line into Turn 12 but Schumacher turned in, causing contact, though both were able to continue; stewards are due to look into the clash.
McLaren’s Lando Norris was eighth as Alfa Romeo duo Antonio Giovinazzi and Kimi Räikkönen – who spun through Turn 9 in the closing stages – capped the top 10.
Alonso causes early red flag
Fernando Alonso’s Alpine A521 came to a halt at Turn 12 on his outlap with fluid leaking from the bottom of the car.
The stoppage caused the session to be suspended but Alonso was able to return to action later in the hour and classified 15th.
George Russell took 11th for Williams though, as with 14th-placed Sebastian Vettel, will start from the back of the grid after taking on fresh power unit components.
Vettel had set a time quick enough for the top five positions but it was deleted due to track limits at Turn 9.
Alonso’s Alpine team-mate Esteban Ocon was 12th, ahead of Vettel’s Aston Martin partner Lance Stroll.
Daniel Ricciardo set his best time on Mediums as he took 16th, in front of Williams’ Nicholas Latifi, AlphaTauri’s Yuki Tsunoda, with the Haas drivers bringing up the rear.
Nikita Mazepin was seven seconds off the pace after spinning through Turn 19.
Friday’s second practice session is scheduled for 15:00 local time
Position
Driver
Team
Time Gap
Laps
1
Valtteri Bottas
Mercedes
1:34.874
17
2
Lewis Hamilton
Mercedes
1:34.919 0.045
18
3
Max Verstappen
Red Bull
1:35.806 0.932
16
4
Charles Leclerc
Ferrari
1:36.334 1.460
18
5
Carlos Sainz Jr
Ferrari
1:36.508 1.634
20
6
Pierre Gasly
AlphaTauri
1:36.611 1.737
18
7
Sergio Perez
Red Bull
1:36.798 1.924
20
8
Lando Norris
McLaren
1:36.855 1.981
11
9
Antonio Giovinazzi
Alfa Romeo
1:36.874 2.000
18
10
Kimi Raikkonen
Alfa Romeo
1:36.876 2.002
18
11
George Russell
Williams
1:36.966 2.092
19
12
Esteban Ocon
Alpine
1:36.970 2.096
22
13
Lance Stroll
Aston Martin
1:36.972 2.098
20
14
Sebastian Vettel
Aston Martin
1:36.982 2.108
20
15
Fernando Alonso
Alpine
1:37.068 2.194
12
16
Daniel Ricciardo
McLaren
1:37.458 2.584
18
17
Nicholas Latifi
Williams
1:37.463 2.589
19
18
Yuki Tsunoda
AlphaTauri
1:37.954 3.080
22
19
Mick Schumacher
Haas
1:38.866 3.992
17
20
Nikita Mazepin
Haas
1:42.239 7.365
19
