Tercera sesión de entrenamientos libres del Gran Premio de Singapur 2018
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Sebastian Vettel |
Ferrari | 1:38.054 | 19 |
| 2 |  Kimi Räikkönen |
Ferrari | +0.362s | 16 |
| 3 |  Lewis Hamilton |
Mercedes | +0.504s | 14 |
| 4 | Valtteri Bottas |
Mercedes | +0.549s | 17 |
| 5 |  Daniel Ricciardo |
Red Bull | +1.132s | 14 |
| 6 |  Max Verstappen |
Red Bull | +1.211s | 10 |
| 7 |  Romain Grosjean |
Haas | +1.693s | 14 |
| 8 | Esteban Ocon |
Force India | +2.019s | 14 |
| 9 |  Sergio Pérez |
Force India | +2.177s | 14 |
| 10 |  Fernando Alonso |
McLaren | +2.200s | 10 |
| 11 | Nico Hülkenberg |
Renault | +2.396s | 17 |
| 12 |  Kevin Magnussen |
Haas | +2.505s | 13 |
| 13 | Carlos Sainz Jr. |
Renault | +2.537s | 14 |
| 14 | Pierre Gasly |
Toro Rosso | +2.632s | 16 |
| 15 |  Stoffel Vandoorne |
McLaren | +2.744s | 15 |
| 16 |  Charles Leclerc |
Sauber | +2.861s | 20 |
| 17 |  Brendon Hartley |
Toro Rosso | +3.508s | 18 |
| 18 |  Sergey Sirotkin |
Williams | +3.830s | 19 |
| 19 |  Marcus Ericsson |
Sauber | +3.899s | 18 |
| 20 |  Lance Stroll |
Williams | +4.166s | 18 |