Primera sesión de entrenamientos libres del Gran Premio de Estados Unidos 2018
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Lewis Hamilton |
Mercedes | 1:47.502 | 6 |
| 2 |  Valtteri Bottas |
Mercedes | +1.304s | 7 |
| 3 |  Max Verstappen |
Red Bull | +1.345s | 9 |
| 4 |  Daniel Ricciardo |
Red Bull | +1.824s | 9 |
| 5 |  Sebastian Vettel |
Ferrari | +1.987s | 18 |
| 6 | Kimi Räikkönen |
Ferrari | +2.426s | 20 |
| 7 |  Carlos Sainz Jr. |
Renault | +3.163s | 8 |
| 8 |  Romain Grosjean |
Haas | +3.319s | 10 |
| 9 |  Charles Leclerc |
Sauber | +3.459s | 14 |
| 10 |  Marcus Ericsson |
Sauber | +3.514s | 14 |
| 11 | Fernando Alonso |
McLaren | +3.534s | 9 |
| 13 | Pierre Gasly |
Toro Rosso | +3.732s | 19 |
| 14 |  Sergio Perez |
Force India | +3.957s | 18 |
| 15 |  Sergey Sirotkin |
Williams | +4.087s | 14 |
| 16 |  Kevin Magnussen |
Haas | +4.112s | 15 |
| 17 | Esteban Ocon |
Force India | +4.153s | 17 |
| 18 | Nico Hülkenberg |
Renault | +4.215s | 7 |
| 19 |  Lance Stroll |
Williams | +4.394s | 14 |
| 20 |  Sean Gelael |
Toro Rosso | +5.123s | 21 |