Lewis Hamilton pulverised the track record to claim pole position on Saturday ahead of a U.S. Grand Prix that could secure the Mercedes driver's fourth Formula One world championship.

Ferrari's Sebastian Vettel, the Briton's closest rival but 59 points behind in the standings with four races remaining, qualified second after producing a last-gasp effort.

Hamilton, chasing his fifth win in six years at the Circuit of the Americas, will be champion on Sunday if he scores 16 points more than the German. Vettel is the only other driver to have won at the Texas track.

The pole, in a time of one minute 33.108 seconds on a gusty afternoon, was the 72nd of Hamilton's career and 11th of the season.

While Mercedes look sure to clinch the constructors' championship for the fourth year in a row on Sunday, with a 145-point advantage over Ferrari, Hamilton played down his own chances of wrapping things up in America.

"I think it's highly unlikely that's going to be the case," the 32-year-old told the cheering crowd from the pit straight after parking up.

"Sebastian did a great job today to bring the Ferrari back up there. I think ultimately all I can do is do the best I can of my abilities and we are going to work as hard as I can to get maximum points.

"Sebastian is right there so unless he makes a silly mistake, which is unlikely as he's a four-times world champion, then we are going to be seeing it (the battle) continue on to other races."

Vettel's time of 1:33.347 put him ahead of Hamilton's team mate Valtteri Bottas, who qualified third and shares the second row with Red Bull's Australian Daniel Ricciardo.

"My lap was very poor in Q3 (the third phase) and I knew I had to deliver," said the German of his prodigious effort to split the Silver Arrows.

"I got it right when it mattered at the end. It’s important to get the front row because I believe our race pace is really good."

Ferrari's Kimi Raikkonen qualified fifth with Max Verstappen sixth for Red Bull, but the Dutch 20-year-old has a 15 place grid penalty. That will lift French driver Esteban Ocon up to the third row for Force India.

Spain's Carlos Sainz, preparing for his first race for Renault after switching from Toro Rosso, will start seventh and alongside compatriot Fernando Alonso in the McLaren.

New Zealander Brendon Hartley, making his Formula One debut at Toro Rosso, will be last on the grid after qualifying 18th but with a 25 place penalty for an engine change decided on before he arrived in the team.

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