Sebastian Vettel led team mate Mark Webber in a Red Bull one-two in Friday afternoon’s second practice session for the 2013 Formula 1 United States Grand Prix.

The world champion set a best time of 1m 37.305 on the medium compound tyre to finish 0.115s ahead of Webber. The Mercedes duo of Nico Rosberg and Lewis Hamilton were third and fourth fastest.

Pos. Drivers Teams Time Laps
01. Deutschland Sebastian Vettel Red Bull Racing 1:37.305 35
02. Australia Mark Webber Red Bull Racing 1:37.420 37
03. Deutschland Nico Rosberg Mercedes AMG Petronas 1:37.785 38
04. United Kingdom Lewis Hamilton Mercedes AMG Petronas 1:37.958 38
05. Finland Heikki Kovalainen Lotus F1 1:38.073 41
06. Mexico Esteban Gutiérrez Sauber F1 1:38.229 40
07. Deutschland Nico Hulkenberg Sauber F1 1:38.254 40
08. France Romain Grosjean Lotus F1 1:38.255 33
09. United Kingdom Jenson Button Vodafone McLaren Mercedes 1:38.269 34
10. Spain Fernando Alonso Scuderia Ferrari 1:38.461 33
11. Deutschland Adrian Sutil Sahara Force India 1:38.719 31
12. Brazil Felipe Massa Scuderia Ferrari 1:38.938 37
13. Mexico Sergio Perez Vodafone McLaren Mercedes 1:38.941 31
14. Australia Daniel Ricciardo Scuderia Toro Rosso 1:39.246 28
15. United Kingdom Paul di Resta Sahara Force India 1:39.410 34
16. Finland Valtteri Bottas Williams F1 1:39.512 37
17. France Jean-Eric Vergne Scuderia Toro Rosso 1:39.579 36
18. Venezuela Pastor Maldonado Williams F1 1:43.565 33
19. France Charles Pic Caterham F1 Team 1:40.376 39
20. Holland Giedo van der Garde Caterham F1 Team 1:40.563 35
21. United Kingdom Max Chilton Marussia F1 1:46.226 31
22. France Jules Bianchi Marussia F1 1:46.226 20