Second 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 1:34.668. Max Verstappen was second, 0.397 seconds behind, followed by Sebastian Vettel in third, 0.524 seconds off the pace.
The top five were Lewis Hamilton, Max Verstappen, Sebastian Vettel, Valtteri Bottas and Daniel Ricciardo, in that order. Mercedes and Red Bull each had two drivers in the top five, with Ferrari represented by one.
Valtteri Bottas was fourth, 0.611 seconds behind the leader, while fifth-placed Daniel Ricciardo was 0.795 seconds adrift.
Esteban Ocon completed the top ten, 1.822 seconds slower than the session leader.
Brendon Hartley completed the most laps with 41, while Sebastian Vettel ran the fewest with 11.
At the lower end of the classification, Lance Stroll was 16th, Brendon Hartley 17th, Pascal Wehrlein 18th, Marcus Ericsson 19th and Romain Grosjean 20th. The lap times and completed laps in the table follow the official classification for this session.
| Pos. | Driver | Team | Time / Gap | Laps |
|---|---|---|---|---|
| 1 | Lewis Hamilton | Mercedes | 1:34.668 | 26 |
| 2 | Max Verstappen | Red Bull | +0.397s | 30 |
| 3 | Sebastian Vettel | Ferrari | +0.524s | 11 |
| 4 | Valtteri Bottas | Mercedes | +0.611s | 39 |
| 5 | Daniel Ricciardo | Red Bull | +0.795s | 24 |
| 6 | Kimi Räikkönen | Ferrari | +0.846s | 29 |
| 7 | Fernando Alonso | McLaren | +1.636s | 28 |
| 8 | Felipe Massa | Williams | +1.792s | 30 |
| 9 | Sergio Pérez | Force India | +1.813s | 28 |
| 10 | Esteban Ocon | Force India | +1.822s | 34 |
| 11 | Carlos Sainz | Renault | +1.861s | 30 |
| 12 | Nico Hülkenberg | Renault | +1.866s | 18 |
| 13 | Daniil Kvyat | Toro Rosso | +2.093s | 40 |
| 14 | Kevin Magnussen | Haas | +2.617s | 17 |
| 15 | Stoffel Vandoorne | McLaren | +2.795s | 31 |
| 16 | Lance Stroll | Williams | +3.120s | 27 |
| 17 | Brendon Hartley | Toro Rosso | +3.319s | 41 |
| 18 | Pascal Wehrlein | Sauber | +3.497s | 35 |
| 19 | Marcus Ericsson | Sauber | +3.594s | 22 |
| 20 | Romain Grosjean | Haas | +3.719s | 26 |
