Primera sesión de entrenamientos libres del Gran Premio de Singapur 2018
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Daniel Ricciardo |
Red Bull | 1:39.711 | 27 |
| 2 |  Max Verstappen |
Red Bull | +0.201s | 27 |
| 3 |  Sebastian Vettel |
Ferrari | +0.286s | 23 |
| 4 |  Kimi Räikkönen |
Ferrari | +0.775s | 21 |
| 5 | Nico Hülkenberg |
Renault | +1.394s | 26 |
| 6 |  Lewis Hamilton |
Mercedes | +1.521s | 28 |
| 7 |  Carlos Sainz Jr. |
Renault | +1.618s | 23 |
| 8 | Valtteri Bottas |
Mercedes | +1.718s | 28 |
| 9 |  Charles Leclerc |
Sauber | +2.324s | 24 |
| 10 |  Romain Grosjean |
Haas | +2.397s | 21 |
| 11 |  Marcus Ericsson |
Sauber | +2.697s | 23 |
| 12 |  Sergio Perez |
Force India | +2.701s | 25 |
| 13 |  Kevin Magnussen |
Haas | +2.741s | 20 |
| 14 | Fernando Alonso |
McLaren | +2.919s | 23 |
| 15 | Esteban Ocon |
Force India | +3.466s | 25 |
| 16 | Pierre Gasly |
Toro Rosso | +3.529s | 25 |
| 17 |  Brendon Hartley |
Toro Rosso | +3.774s | 30 |
| 18 |  Lance Stroll |
Williams | +4.138s | 30 |
| 19 |  Sergey Sirotkin |
Williams | +4.325s | 29 |
| 20 |  Stoffel Vandoorne |
McLaren | +5.449s | 11 |