Großer Preis der USA 2021 / Austin
2. Training
| Pos. | Nr. | Fahrer | Team | Zeit | Rückstand | Rdn. |
|---|---|---|---|---|---|---|
| 1 | 11 |  | Red Bull | 1.34.946 | --- | 24 |
| 2 | 4 | | McLaren | 1.35.203 | + 0.257 | 20 |
| 3 | 44 | | Mercedes | 1.35.310 | + 0.364 | 22 |
| | ||||||
| 4 | 77 | | Mercedes | 1.35.360 | + 0.414 | 24 |
| 5 | 3 | | McLaren | 1.35.457 | + 0.511 | 21 |
| 6 | 18 | | Aston Martin | 1.35.561 | + 0.615 | 25 |
| 7 | 16 | | Ferrari | 1.35.572 | + 0.626 | 23 |
| 8 | 33 | | Red Bull | 1.35.824 | + 0.878 | 23 |
| 9 | 55 | | Ferrari | 1.35.919 | + 0.973 | 24 |
| 10 | 99 | | Alfa Romeo | 1.36.138 | + 1.192 | 26 |
| 11 | 31 | | Alpine | 1.36.158 | + 1.212 | 23 |
| 12 | 10 | | AlphaTauri | 1.36.242 | + 1.296 | 25 |
| 13 | 14 | | Alpine | 1.36.376 | + 1.430 | 18 |
| 14 | 7 | | Alfa Romeo | 1.36.558 | + 1.612 | 25 |
| 15 | 5 | | Aston Martin | 1.36.718 | + 1.772 | 30 |
| 16 | 22 | | AlphaTauri | 1.36.983 | + 2.037 | 24 |
| 17 | 47 | | Haas F1 | 1.37.041 | + 2.095 | 24 |
| 18 | 6 | | Williams | 1.37.254 | + 2.308 | 26 |
| 19 | 63 | | Williams | 1.37.490 | + 2.544 | 21 |
| 20 | 9 | | Haas F1 | 1.38.026 | + 3.080 | 23 |
