Kết quả phiên chạy FP1 của chặng đua GP Mexico 2021:
| Stt | Tay đua | Xe | Thời gian | Kh/cách | Lap |
| 1 | Valtteri Bottas | MERCEDES | 1:18.341 | 28 | |
| 2 | Lewis Hamilton | MERCEDES | 1:18.417 | +0.076s | 24 |
| 3 | Max Verstappen | RED BULL | 1:18.464 | +0.123s | 28 |
| 4 | Sergio Perez | RED BULL | 1:18.610 | +0.269s | 20 |
| 5 | Pierre Gasly | ALPHATAURI | 1:18.985 | +0.644s | 23 |
| 6 | Carlos Sainz | FERRARI | 1:19.463 | +1.122s | 26 |
| 7 | Fernando Alonso | ALPINE | 1:19.656 | +1.315s | 26 |
| 8 | Charles Leclerc | FERRARI | 1:19.667 | +1.326s | 20 |
| 9 | Esteban Ocon | ALPINE | 1:19.759 | +1.418s | 20 |
| 10 | Sebastian Vettel | ASTON MARTIN | 1:19.858 | +1.517s | 27 |
| 11 | Yuki Tsunoda | ALPHATAURI | 1:20.011 | +1.670s | 30 |
| 12 | Kimi Räikkönen | ALFA ROMEO | 1:20.026 | +1.685s | 26 |
| 13 | Lance Stroll | ASTON MARTIN | 1:20.030 | +1.689s | 27 |
| 14 | Daniel Ricciardo | MCLAREN | 1:20.273 | +1.932s | 25 |
| 15 | Lando Norris | MCLAREN | 1:20.301 | +1.960s | 26 |
| 16 | Antonio Giovinazzi | ALFA ROMEO | 1:20.344 | +2.003s | 27 |
| 17 | George Russell | WILLIAMS | 1:20.517 | +2.176s | 23 |
| 18 | Nicholas Latifi | WILLIAMS | 1:21.580 | +3.239s | 23 |
| 19 | Mick Schumacher | HAAS | 1:22.144 | +3.803s | 27 |
| 20 | Nikita Mazepin | HAAS | 1:22.819 | +4.478s | 24 |
Nguồn: Tổng hợp
