Lewis Hamilton was fastest in the final practice session in Austin, ahead of Max Verstappen and Charles Leclerc, and was the only driver under 1m35s in the last 20 minutes.
Why it matters Practice pace suggested Ferrari could be competitive, but qualifying is where the grid order is actually set.
Lewis Hamilton topped final practice in Austin, ahead of Max Verstappen and Charles Leclerc, despite frequent track limits violations across the session.
Why it matters Hamilton's pace in practice points to a strong Ferrari challenge, though qualifying often tells a different story.
Ferrari, tipped as favourites after practice, failed to find enough pace to progress through Q3 in Austin, despite Charles Leclerc leading both Friday sessions.
Why it matters A clear gap between practice and qualifying form suggests Ferrari's car behaves differently under race-pace preparation.
George Russell joked that he would take team-mate Kimi Antonelli drinking to stop him winning the championship in Austin, where Antonelli can clinch his first title.
Why it matters Antonelli can secure his maiden title on Sunday, making the Mercedes team-mate rivalry a live story.
Leclerc narrowly edged Kimi Antonelli for the fastest time in second practice, while McLaren were reported to be struggling for grip around the Circuit of the Americas.
Why it matters McLaren's grip problems in Friday running may matter for the championship contenders' race-day strategy.
Leclerc went quickest again in Friday's second practice session, narrowly ahead of Antonelli, with McLaren reportedly struggling for grip on the Austin track.
Why it matters Leclerc's Friday sweep gives Ferrari early momentum, though practice times do not always carry over to race day.
Leclerc and Hamilton offer differing explanations for Ferrari failing to progress beyond Q3 in Austin, despite Leclerc topping both Friday practice sessions.
Why it matters Ferrari's qualifying shortfall raises questions about whether its practice pace translates into race speed in Texas.
Russell concedes Mercedes's latest multi-million-dollar upgrade package needs further work to fine-tune it, as team-mate Antonelli nears the world title.
Why it matters Mercedes's struggles with the upgrade matter as Antonelli's championship lead is at stake this weekend.
Hamilton has praised Kimi Antonelli as massively impressive and said he deserves to be champion, with the Mercedes driver holding a 102-point lead over Russell.
Why it matters Antonelli could secure his first title at Austin, a remarkable outcome for a driver still early in his career.
Hadjar, who recovered from a difficult start to the weekend, finished just 0.036 seconds behind Verstappen and says Red Bull can use its numbers to challenge Antonelli.
Why it matters Hadjar's near-identical lap to Verstappen gives Red Bull two cars capable of pressing Antonelli in the race.
Ferrari team principal Frederic Vasseur said his team was in contention until the final corner of Q3 and admitted he expected more after topping practice.
Why it matters Vasseur's comments point to a gap between Ferrari's practice pace and its qualifying execution.
Kimi Antonelli says Mercedes has taken another step in extracting performance from its recent upgrade package, with a new front wing option brought to Austin.
Why it matters Antonelli leads the championship, so Mercedes's progress at Austin bears directly on the title fight.
Christian Horner says he is in no hurry to return to Formula 1 and could accept never working in the paddock again, after his sacking by Red Bull in July 2025.
Why it matters Horner's comments close the chapter on a figure who shaped Red Bull's success over two decades.