Hamilton tops opening F1 practice in Singapore
Lewis Hamilton topped the first practice for the Singapore Grand Prix for Mercedes in what was largely a track cleaning exercise.
The Briton led the Red Bulls of Mark Webber and Sebastian Vettel. Nico Rosberg completed the top four ahead of Lotus team-mates Kimi Raikkonen and Romain Grosjean.
Fernando Alonso was the fastest Ferrari in seventh.
Results
| Pos | Driver | Team | Time | Behind | Laps |
| 1 | Lewis Hamilton | Mercedes | 1m47.055s | +0.000s | 20 |
| 2 | Mark Webber | Red Bull-Renault | 1m47.420s | +0.365s | 20 |
| 3 | Sebastian Vettel | Red Bull-Renault | 1m47.885s | +0.830s | 19 |
| 4 | Nico Rosberg | Mercedes | 1m48.239s | +1.184s | 23 |
| 5 | Kimi Raikkonen | Lotus-Renault | 1m48.354s | +1.299s | 18 |
| 6 | Romain Grosjean | Lotus-Renault | 1m48.355s | +1.300s | 12 |
| 7 | Fernando Alonso | Ferrari | 1m48.362s | +1.307s | 21 |
| 8 | Sergio Perez | McLaren-Mercedes | 1m49.267s | +2.212s | 20 |
| 9 | Jean-Eric Vergne | Toro Rosso-Ferrari | 1m49.348s | +2.293s | 23 |
| 10 | Esteban Gutierrez | Sauber-Ferrari | 1m49.355s | +2.300s | 21 |
| 11 | Pastor Maldonado | Williams-Renault | 1m49.481s | +2.426s | 20 |
| 12 | Felipe Massa | Ferrari | 1m49.493s | +2.438s | 16 |
| 13 | Valtteri Bottas | Williams-Renault | 1m49.510s | +2.455s | 21 |
| 14 | Jenson Button | McLaren-Mercedes | 1m49.608s | +2.553s | 20 |
| 15 | Paul di Resta | Force India-Mercedes | 1m49.887s | +2.832s | 18 |
| 16 | Adrian Sutil | Force India-Mercedes | 1m50.092s | +3.037s | 20 |
| 17 | Nico Hulkenberg | Sauber-Ferrari | 1m50.222s | +3.167s | 17 |
| 18 | Daniel Ricciardo | Toro Rosso-Ferrari | 1m50.757s | +3.702s | 16 |
| 19 | Jules Bianchi | Marussia-Cosworth | 1m52.359s | +5.304s | 16 |
| 20 | Max Chilton | Marussia-Cosworth | 1m52.673s | +5.618s | 15 |
| 21 | Giedo van der Garde | Caterham-Renault | 1m52.920s | +5.865s | 24 |
| 22 | Charles Pic | Caterham-Renault | 1m53.647s | +6.592s | 23 |