Ferrari's Charles Leclerc set the fastest time in the first practice session at the United States Grand Prix, edging out Max Verstappen of Red Bull by just 0.084 seconds. This marks an exciting start to a weekend where Mercedes driver Kimi Antonelli has the opportunity to clinch his first world title.

In the practice session, Leclerc's performance stood out, though he finished behind competitors like Lando Norris from McLaren and George Russell of Mercedes. The top results included:

• 1st: Charles Leclerc (Ferrari)
• 2nd: Max Verstappen (Red Bull)
• 3rd: Lando Norris (McLaren)
• 4th: George Russell (Mercedes)
• 5th: Lewis Hamilton (Mercedes)
• 6th: Oscar Piastri (McLaren)

For Antonelli to secure the championship this weekend, he must win the race while ensuring that Russell finishes outside the top eight and Hamilton below fourth.

Mercedes has reverted both cars to an upgraded specification introduced in Malaysia, though they have faced challenges in maximizing its performance. The team is optimistic that a normal weekend with three practice sessions will allow them to refine their setup.

Ferrari also introduced a significant upgrade, featuring a new floor. However, both Leclerc and Hamilton played down its expected impact, with Hamilton noting, "We have a very, very small upgrade this weekend. It's less than a tenth. It's like half a tenth." He added that the team hopes the track conditions might favor their car, potentially leveling the playing field.