Hamilton completes practice clean sweep
21 October 2017 – Formula 1 championship leader Lewis Hamilton completed a practice clean sweep by topping FP3 for the United States Grand Prix, posting another new track record around the Circuit of the Americas.
Hamilton, having already beaten his 2016 pole position time on Friday, posted a 1:34.478 during Saturday morning's session in hot conditions.
Mercedes driver Hamilton ended the session just 0.092s ahead of Ferrari rival Sebastian Vettel, who enjoyed a smoother session after taking on a new chassis.
Valtteri Bottas and Kimi Räikkönen were a couple of tenths back on the other Mercedes and Ferrari machines, with Red Bull slipping away from the front.
Max Verstappen led Red Bull's charge in fifth, but only after a wild moment through the Esses, with Daniel Ricciardo back in ninth, unable to make a significant jump on Ultra Softs.
Williams featured in the top six, courtesy of Felipe Massa, as the Renault drivers, the aforementioned Ricciardo and Force India's Sergio Pérez completed the top 10.
Esteban Ocon hit traffic on his final run en route to 11th, a couple of tenths down on team-mate Pérez, followed by Lance Stroll, who missed the early stages of running for an unspecified reason.
McLaren-Honda finished in the midfield, Fernando Alonso narrowly ahead of Stoffel Vandoorne, with Toro Rosso debutant Brendon Hartley a solid 15th.
Kevin Magnussen was the highest-placed Haas driver in 16th, after team-mate Romain Grosjean lost control of his car at Turn 7 and slid into the gravel trap.
Grosjean was unable to rejoin the action, shaking his head as he walked away from the scene, with a Virtual Safety Car period required as marshals cleared the stricken VF-17.
Grosjean's incident enabled Sauber pair Marcus Ericsson and Pascal Wehrlein to slot ahead, with Daniil Kvyat at the back, having posted his best time on the Super Soft tyre.
Kvyat spent most of the session stranded in the garage amid front-end problems, having reported heavy steering in his STR12.
Saturday's qualifying session will begin at 16:00 local time