Kimi Antonelli claimed pole position for the United States Grand Prix with a hugely impressive lap for Mercedes at the Circuit of the Americas, beating Red Bull's Max Verstappen into second and giving himself the chance to close out his first world championship this weekend.
Isack Hadjar did well to secure third for Red Bull, with Charles Leclerc and Lewis Hamilton fourth and fifth for Ferrari, and Antonelli's Mercedes team-mate George Russell sixth.
The Italian has a 102-point lead over Russell and needs to be 125 points in front after this race. To take the title he must win on Sunday and have Russell finish outside the top eight, with Hamilton outside the top four.
It was Antonelli's first pole since the Belgian Grand Prix in July and his seventh of the season, in a year that has also brought eight wins. He is attempting to become the youngest Formula One world champion, at just 20 years old.
His time of 1min 34.035sec came on the first runs in Q3, almost two-tenths up on Verstappen, who gave his all on the final runs but could not improve. It is Mercedes' first pole in Austin since Valtteri Bottas took the top spot in 2019 and went on to win.
The achievement is the more striking because the Mercedes upgrades applied in Malaysia have made the car more of a handful to drive. Russell was a full four-tenths off his team-mate. Antonelli's engineer, Pete Bonnington, admitted the result was somewhat unexpected.
"We got pole, so we'll try to win tomorrow," Antonelli said. "Max has been very quick and did an incredible job in qualifying so it's not going to be easy. Hopefully we'll be leading into turn one and we'll try to set the pace, even though it's going to be very tight."
"It was unexpected, we felt it would be close but it was a good surprise," he added. "I am happy because we have been working very hard on this package and since Singapore we have taken a big step further." Should the title not be secured in Austin, it is widely expected to be settled at the next round in Mexico.
The clinching condition is worth stating exactly as published. Antonelli leads by 102 points. He must be 125 points ahead once this race is over. The championship therefore requires his advantage to grow by precisely 23 points in a single afternoon.
He controls one of the three things required to do it. He must win on Sunday, which he can attempt. Russell must finish outside the top eight and Hamilton outside the top four, which he cannot attempt at all.
Our analysts note the consequence with some admiration. The quickest car at the Circuit of the Americas, in the hands of the only driver in a position to settle the championship on Sunday, cannot settle it by driving. Pole position has secured the one part of the task that was never really in doubt.
The Department of Unnecessary Research has reviewed the sporting regulations and can find no mechanism by which a driver may surrender a finishing position on a rival's behalf, or come ninth as a courtesy to the team-mate he shares a garage with.
Antonelli will therefore spend Sunday afternoon in the lead, having done the only part of this that is his to do, waiting to hear whether everybody else has been disappointing enough.