Max Verstappen et Daniel Ricciardo ont été les plus rapide de la 1re séance d’essais libres au Mexique. Carlos Sainz est 3e et Nico Hulkenberg est 4e. On retrouve par la suite les Mercedes et les Ferrari.
| Pos | No | Pilote | Équipe | Temps | Écart | Tours |
|---|---|---|---|---|---|---|
| 1 | 33 | Max Verstappen | Red Bull Racing TAG Heuer | 1:16.656 | 19 | |
| 2 | 3 | Daniel Ricciardo | Red Bull Racing TAG Heuer | 1:17.139 | +0.483s | 19 |
| 3 | 55 | Carlos Sainz | Renault | 1:17.926 | +1.270s | 20 |
| 4 | 27 | Nico Hulkenberg | Renault | 1:18.028 | +1.372s | 21 |
| 5 | 44 | Lewis Hamilton | Mercedes | 1:18.075 | +1.419s | 23 |
| 6 | 77 | Valtteri Bottas | Mercedes | 1:18.322 | +1.666s | 27 |
| 7 | 5 | Sebastian Vettel | Ferrari | 1:18.746 | +2.090s | 17 |
| 8 | 7 | Kimi Räikkönen | Ferrari | 1:18.936 | +2.280s | 22 |
| 9 | 28 | Brendon Hartley | Scuderia Toro Rosso Honda | 1:19.024 | +2.368s | 29 |
| 10 | 34 | Nicholas Latifi | Force India Mercedes | 1:19.078 | +2.422s | 23 |
| 11 | 11 | Sergio Perez | Force India Mercedes | 1:19.124 | +2.468s | 29 |
| 12 | 36 | Antonio Giovinazzi | Sauber Ferrari | 1:19.134 | +2.478s | 25 |
| 13 | 8 | Romain Grosjean | Haas Ferrari | 1:19.276 | +2.620s | 26 |
| 14 | 9 | Marcus Ericsson | Sauber Ferrari | 1:19.312 | +2.656s | 28 |
| 15 | 47 | Lando Norris | McLaren Renault | 1:19.646 | +2.990s | 23 |
| 16 | 2 | Stoffel Vandoorne | McLaren Renault | 1:19.716 | +3.060s | 29 |
| 17 | 20 | Kevin Magnussen | Haas Ferrari | 1:19.853 | +3.197s | 28 |
| 18 | 35 | Sergey Sirotkin | Williams Mercedes | 1:19.899 | +3.243s | 30 |
| 19 | 18 | Lance Stroll | Williams Mercedes | 1:20.142 | +3.486s | 26 |
| 20 | 10 | Pierre Gasly | Scuderia Toro Rosso Honda | 2 |