A mixed session on Friday practice saw the Ferrari challenge the Mercedes duo, but Hamilton set the fastest time during the second practice session to showcase Mercedes' dominance ahead of the rest of the field.
Where to Watch Live
The third free practice begins at 11am BST, while the qualifying session starts at 2pm BST. Sky Sports F1 and Sky Sports F1 HD will provide live coverage of both events in the UK.
Real-time Internet updates are available on the Live Timing section of the sport's official website.
The arrival at the street circuit in Singapore, saw a change in order from the last race at Italy. The slow and windy nature of the track saw the Ferrari's and Red Bull's come to the fore, but the performance of the Mercedes F1 team still holds an advantage.
The first practice session saw the Ferrari of Fernando Alonso hold the advantage over the Mercedes powered cars, but when it came to the second session, the Silver Arrows team came to the fore with Hamilton topping the time sheets.
Top 10 Results of the Second Practice Session at Marina Bay Circuit Singapore
1. Lewis Hamilton (GBR) Mercedes 1:47.490s
2. Fernando Alonso (SPA) Ferrari 1:47.623s
3. Daniel Ricciardo (AUS) Red Bull 1:47.790s
4. Kimi Raikkonen (FIN) Ferrari 1:48.031s
5. Sebastian Vettel (GER) Red Bull 1:48.041s
6. Kevin Magnussen (DEN) McLaren 1:48.358s
7. Jenson Button (GBR) McLaren 1:48.435s
8. Sergio Perez (MEX) Force India 1:48.653s
9. Nico Hulkenburg (GER) Force India 1:48.751s
10. Daniel Kvyat (RUS) Toro Rosso 1:48.770s