First practice for the 2017 Formula 1 United States Grand Prix, the 17th round of the season, took place at the Circuit of the Americas.
Lewis Hamilton was fastest with a 1:36.335. Sebastian Vettel was second, 0.593 seconds behind, followed by Valtteri Bottas in third, 0.644 seconds off the pace.
The top five were Lewis Hamilton, Sebastian Vettel, Valtteri Bottas, Max Verstappen and Stoffel Vandoorne, in that order. Mercedes had two drivers in the top five, with one each for Ferrari, Red Bull and McLaren.
Max Verstappen was fourth, 1.004 seconds behind the leader, while fifth-placed Stoffel Vandoorne was 1.017 seconds adrift.
Carlos Sainz completed the top ten, 1.758 seconds slower than the session leader.
Brendon Hartley completed the most laps with 28, while Fernando Alonso ran the fewest with four.
At the lower end of the classification, Daniel Ricciardo was 16th, Sean Gelael 17th, Marcus Ericsson 18th, Charles Leclerc 19th and Fernando Alonso 20th. Alonso did not record a time.
| Pos. | Driver | Team | Time / Gap | Laps |
|---|---|---|---|---|
| 1 | Lewis Hamilton | Mercedes | 1:36.335 | 18 |
| 2 | Sebastian Vettel | Ferrari | +0.593s | 20 |
| 3 | Valtteri Bottas | Mercedes | +0.644s | 10 |
| 4 | Max Verstappen | Red Bull | +1.004s | 21 |
| 5 | Stoffel Vandoorne | McLaren | +1.017s | 26 |
| 6 | Felipe Massa | Williams | +1.235s | 23 |
| 7 | Kimi Räikkönen | Ferrari | +1.263s | 20 |
| 8 | Esteban Ocon | Force India | +1.473s | 25 |
| 9 | Sergio Pérez | Force India | +1.526s | 20 |
| 10 | Carlos Sainz | Renault | +1.758s | 24 |
| 11 | Kevin Magnussen | Haas | +2.073s | 16 |
| 12 | Lance Stroll | Williams | +2.199s | 25 |
| 13 | Nico Hülkenberg | Renault | +2.569s | 19 |
| 14 | Brendon Hartley | Toro Rosso | +2.932s | 28 |
| 15 | Romain Grosjean | Haas | +3.001s | 17 |
| 16 | Daniel Ricciardo | Red Bull | +3.031s | 14 |
| 17 | Sean Gelael | Toro Rosso | +4.071s | 25 |
| 18 | Marcus Ericsson | Sauber | +4.113s | 19 |
| 19 | Charles Leclerc | Sauber | +4.493s | 25 |
| 20 | Fernando Alonso | McLaren | No time | 4 |
