Primera sesión de entrenamientos libres del Gran Premio de Estados Unidos 2021
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Valtteri Bottas |
Mercedes | 1:34.874 | 17 |
| 2 |  Lewis Hamilton |
Mercedes | +0.045s | 18 |
| 3 |  Max Verstappen |
Red Bull | +0.932s | 16 |
| 4 |  Charles Leclerc |
Ferrari | +1.460s | 18 |
| 5 |  Carlos Sainz Jr. |
Ferrari | +1.634s | 20 |
| 6 |  Pierre Gasly |
Alpha Tauri | +1.737s | 18 |
| 7 |  Sergio Perez |
Red Bull | +1.924s | 20 |
| 8 |  Lando Norris |
McLaren | +1.981s | 11 |
| 9 |  Antonio Giovinazzi |
Alfa Romeo | +2.000s | 18 |
| 10 | Kimi Räikkönen |
Alfa Romeo | +2.002s | 18 |
| 11 | George Russell |
Williams | +2.092s | 19 |
| 12 | Esteban Ocon |
Alpine | +2.096s | 22 |
| 13 |  Lance Stroll |
Aston Martin | +2.098s | 20 |
| 14 |  Sebastian Vettel |
Aston Martin | +2.108s | 20 |
| 15 | Fernando Alonso |
Alpine | +2.194s | 12 |
| 16 |  Daniel Ricciardo |
McLaren | +2.584s | 18 |
| 17 | Nicholas Latifi |
Williams | +2.589s | 19 |
| 18 |  Yuki Tsunoda |
Alpha Tauri | +3.080s | 22 |
| 19 | Mick Schumacher |
Haas | +3.992s | 17 |
| 20 |  Nikita Mazepin |
Haas | +7.365s | 19 |