| 2019 Formula 1 Singapore Grand Prix - Free Practice 1 Results |
| Pos | Driver | Nat | Team | Time/Gap |
| 1 | Max Verstappen | NED | Aston Martin Red Bull Racing Honda | 1m40.259s |
| 2 | Sebastian Vettel | GER | Scuderia Ferrari | + 0.167s |
| 3 | Lewis Hamilton | GBR | Mercedes AMG Petronas Motorsport | + 0.666s |
| 4 | Valtteri Bottas | FIN | Mercedes AMG Petronas Motorsport | + 1.077s |
| 5 | Alexander Albon | THA | Aston Martin Red Bull Racing Honda | + 1.208s |
| 6 | Nico Hulkenberg | GER | Renault F1 Team | + 1.553s |
| 7 | Carlos Sainz | ESP | McLaren F1 Team | + 1.707s |
| 8 | Lando Norris | GBR | McLaren F1 Team | + 1.921s |
| 9 | Daniil Kvyat | RUS | Red Bull Toro Rosso Honda | + 2.046s |
| 10 | Pierre Gasly | FRA | Red Bull Toro Rosso Honda | + 2.118s |
| 11 | Daniel Ricciardo | AUS | Renault F1 Team | + 2.268s |
| 12 | Romain Grosjean | FRA | Rich Energy Haas F1 Team | + 2.371s |
| 13 | Antonio Giovinazzi | ITA | Alfa Romeo Racing | + 2.418s |
| 14 | Kimi Raikkonen | FIN | Alfa Romeo Racing | + 2.527s |
| 15 | Lance Stroll | CAN | SportPesa Racing Point F1 Team | + 2.532s |
| 16 | Kevin Magnussen | DEN | Rich Energy Haas F1 Team | + 2.891s |
| 17 | Robert Kubica | POL | ROKiT Williams Racing | + 3.077s |
| 18 | Sergio Perez | MEX | SportPesa Racing Point F1 Team | + 3.110s |
| 19 | Charles Leclerc | MON | Scuderia Ferrari | + 3.359s |
| 20 | George Russell | GBR | ROKiT Williams Racing | + 3.734s |
