Sebastian Vettel has dominated the practice sessions ahead of tomorrow's US Grand Prix by clocking the fastest time in the third and final session.
The Red Bull driver has maintained his stronghold on the timesheets, with McLaren's Lewis Hamilton emerging as his closest challenger after finishing second in the third practice in Austin, Texas.
Despite his dominance, Vettel's times in all three sessions have been whittled down from 1.4 seconds in the first, 0.7 in the second and 0.2 in today's practice.
Meanwhile, Ferrari's Fernando Alonso, who is currently 10 points behind Vettel in the drivers' standings, clocked the fourth-quickest time.
Third practice standings:
1. Sebastian Vettel (Red Bull) - 1:38.125
2. Lewis Hamilton (McLaren) - 1:39.543
3. Fernando Alonso (Ferrari) - 1:40.337
4. Jenson Button (McLaren) - 1:40.528
5. Mark Webber (Red Bull) - 1:40.650
6. Felipe Massa (Ferrari) - 1:40.966
7. Nico Hulkenberg (Force India) - 1:41.023
8. Kamui Kobayashi (Sauber) - 1:41.036
9. Nico Rosberg (Mercedes) 1:41.159
10. Sergio Perez (Sauber) 1:41.473
11. Paul Di Resta (Force India) - 1:41.783
12. Daniel Ricciardo (Toro Rosso) - 1:41.825
13. Jean-Eric Vergne (Toro Rosso) - 1:41.833
14. Kimi Raikkonen (Lotus) - 1:41.880
15. Romain Grosjean (Lotus) - 1:41.998
16. Pastor Maldonado (Williams) - 1:42.539
17. Michael Schumacher (Mercedes) - 1:42.588
18. Charles Pic (Marussia) - 1:43.288
19. Heikki Kovalainen (Caterham - 1:43.443
20. Vitaly Petrov (Caterham) - 1:43.522
21. Timo Glock (Marussia) 1:44.464
22. Bruno Senna (Williams) 1:44.548
23. Pedro de la Rosa (HRT) - 1:46.917
24. Ma Qinghua (HRT) - 1:48.559
