For the Williams Martini team Friday practice for the 2014 United States Grand Prix would see Felipe Nasr take the place of regular driver Valtteri Bottas. He would join Felipe Massa as the session got under way. Both Williams drivers would complete their installation laps. For this session the drivers would again have an extra set of medium tyres to use and after eight minutes of the session it would be Button fastest with a 1m:41.158 while for Williams Felipe Nasr was third, 1m:42.127, and Felipe Massa fourth, 1m:42.587.Second was Magnussen followed by Raikkonen. But Alonso would improve to be second with a time of 1m:41.323. Other drivers would also improve with Hamilton now fifth having led the times early on.

Magnussen would move to the top of the times with a 1m:41.078. Rosberg was now sixth, 1m:42.027, while Nasr had pitted currently seventh. Massa had dropped to ninth as Nasr quickly returned to the track. Another new face running in the session was Max Verstappen running with Torro Rosso. He was down in eleventh with a 1m:42.956. Both Williams cars had pitted along with the rest of the field with the drivers coming in to return their set of Pirelli tyres. The top ten was Magnussen followed by Button, Alonso, Hamilton, Raikkonen, Rosberg, Nasr, Kvyat, Massa, and Ricciardo. Button would be the first to return to the track going fastest in sector one. Button would complete his lap going fastest with a 1m:40.319. Button would pit briefly returning to the track along with the bulk of the field.

Rosberg was able to move up to second, 1m:40.675, but Hamilton would move to the top of the times with a 1m:40.106. Kvyat was now third followed by Magnussen and Alonso. Nasr and Massa were both back on the track with the pair eleventh and fifteenth. Vettel was seventh while his team-mate was still in his pit as his mechanics worked on an engine related issue with his car. Rosberg was able to move into second with a 1m:40.233 to be behind his team-mate. But Hamilton would improve his quickest time setting a 1m:40.044.Felipe was able to improve with a 1m:41.907 to be tenth. Nasr was still eleventh but he was on a quicker lap finishing with a 1m:41.545 to be eighth. Massa had dropped to eleventh one place behind Verstappen. Hamilton would again improve with a 1m:40.004 to maintain his position at the top of the times. Alonso would pit taking on a new front wing currently sixth.

Massa would pit with just over twenty two minutes remaining as Hamilton set a new fastest first sector time. Hamilton would complete his lap setting a 1m:39.941 on a track that only had three cars running. Hamilton would pit as Rosberg returned to the track joining Alonso and Vettel. Kvyat was also back out followed shortly after by Verstappen. Both Williams cars had only complete fourteen laps at this point with ten minutes remaining. Both Mercedes cars were on the track but neither of the Williams drivers had returned. But it would be Massa first to return after some changes were made to his car. With five minutes remaining only Nasr and Ricciardo were still in the pits. But both Vettel and Alonso would also come in. Alonso's stop would be brief with just a few minutes remaining. Nasr would finally return to the track as Hulkenberg pitted briefly.

The session would come to an end with Hamilton remaining fastest from Rosberg, Button, Kvyat, Magnussen, Alonso, Vettel, Nasr, Hulkenberg, and Verstappen. Massa would remain eleventh but he was close to two seconds off the quickest time.

Pos Driver           	Team		       	Time     Laps
1 Lewis Hamilton 	Mercedes 	 	1m39.941s 28 
2 Nico Rosberg 		Mercedes 	 	1m40.233s 32 
3 Jenson Button 	McLaren/Mercedes 	1m40.319s 27 
4 Daniil Kvyat 		Toro Rosso/Renault 	1m40.887s 33 
5 Kevin Magnussen 	McLaren/Mercedes 	1m40.987s 29 
6 Fernando Alonso 	Ferrari 		1m41.065s 27 
7 Sebastian Vettel 	Red Bull/Renault 	1m41.463s 20 
8 Luiz Felipe Nasr 	Williams/Mercedes 	1m41.545s 19 
9 Nico Hulkenberg 	Force India/Mercedes 	1m41.722s 24 
10 Max Verstappen 	Toro Rosso/Renault 	1m41.785s 32 
11 Felipe Massa 	Williams/Mercedes 	1m41.907s 21 
12 Kimi Raikkonen 	Ferrari 		1m41.965s 23 
13 Pastor Maldonado 	Lotus/Renault 		1m42.329s 28 
14 Adrian Sutil 	Sauber/Ferrari 		1m42.333s 23 
15 Sergio Perez 	Force India/Mercedes 	1m42.359s 23 
16 Esteban Gutierrez 	Sauber/Ferrari 		1m42.516s 24 
17 Daniel Ricciardo 	Red Bull/Renault 	1m42.598s 5 
18 Romain Grosjean 	Lotus/Renault 		1m43.229s 26