| 09:50:40
| Welcome to F1-Live.com and our live coverage of the United States Grand Prix. Today we have two 90 minute practice sessions, the first of which gets underway in ten minutes. |
| 09:52:59
| The big news of the week is that Robert Kubica escaped any serious injury following his massive crash during the Canadian Grand Prix. A swollen ankle and concussion has however kept him out of the action this weekend. |
| 09:54:14
| Sebastian Vettel gets his break and will take over Kubica’s BMW Sauber alongside Nick Heidfeld. It is also a good opportunity for Mario Theissen to see how his young gun can cope over a whole race weekend. |
| 09:56:09
| Fernando Alonso has also been making headlines stating that he feels McLaren are supporting Montreal winner Lewis Hamilton more than they are him. The comments are almost identical to those he charged the Renault team with last year and can be taken with a large pinch of salt. |
| 09:57:25
| Alex Wurz is not taking part in this session. His place has been taken by tester Kazuki Nakajima. |
| 09:58:56
| Last night, the FIA conducted a little test under floodlights at the circuit. Only the Mercedes safety car was on track as they evaluated the lighting conditions. Singapore will hold a night race next year. |
| 10:00:05
| The first practice session is now underway. |
| 10:01:02
| Adrian Sutil is out on tracl as Albers, Schumacher and others follow out of the pit lane. |
| 10:01:54
| The running initially is just an installation lap to check for any leaks or minor problems with the cars. |
| 10:02:37
| The Spyker duo have both returned to the pits. Hamilton, Alonso and Kovalainen on track. |
| 10:03:25
| Button, Speed, Liuzzi and others now on the installation lap. |
| 10:04:34
| No lap times yet as they all head back to the pits. |
| 10:05:01
| Speed and Liuzzi start timed laps for Toro Rosso. |
| 10:05:30
| Mark Webber heads out in his Red Bull Renault. |
| 10:06:14
| The Toro Rosso duo both head to the pits at the end of their second lap. |
| 10:06:35
| Fisichella is the only driver on track at the moment. |
| 10:07:11
| Now Coulthard is out in the second RB3. |
| 10:08:17
| Fisichella has pitted his Renault. Barrichello is out in the Honda. |
| 10:09:44
| For the record, Michael Schumacher claimed Pole Position at the circuit last year with a lap in 1:10.832s. |
| 10:10:44
| No one on track at the moment. No sign yet of the the Ferrari and Williams drivers. |
| 10:12:37
| Jarno Trulli is back out in his Toyota. Ralf Schumacher follows out of the pit lane. Schumacher was eighth last time out in Montreal, while Trulli crashed out under the safety car. |
| 10:14:08
| Nakajima is on track in his Williams Toyota. |
| 10:14:51
| The same session last year saw Davidson set the pace for Honda on a 1:20.0 |
| 10:15:11
| Trulli and Schumacher record the first timed laps of the session. |
| 10:16:32
| The Toyota duo trim a few tenths off their times as Nakajima post his first lap time. |
| 10:18:36
| Trulli, Schumacher and Nakajima improve a little each time across the yard of bricks. They are on the hard tyre. No one else on track at the moment. |
| 10:20:08
| Schumacher moves fastest from Trulli and Nakajima. Jenson Button heads out in his Honda. |
| 10:21:17
| Trulli pits his TF107. Schumacher stays out for another lap. |
| 10:21:42
| Vettel heads out in his BMW Sauber. A big weekend ahead for the German youngster. |
| 10:22:38
| Button moves ahead of Nakajima and into third position. These early laps are all about getting a feel for the setup and the tyres. |
| 10:23:06
| Schumacher and Nakajima now pit leaving Button, Vettel and Liuzzi on track. |
| 10:23:54
| Button pits his Honda. A short run from him. |
| 10:25:46
| First timed laps from Liuzzi and Vettel. |
| 10:26:25
| Adrian Sutil is back out in his Spyker. The team were most unhappy after both he and Albers crashed out of teh race last Sunday as points may have been possible. |
| 10:26:48
| Scott Speed moves fourth fastest as Vettel moves up a little. |
| 10:27:21
| Lewis Hamilton heads out. A nice rivalry forming between the rookie and Alonso. |
| 10:28:24
| Now Rosberg and Heidfeld join the action. Sutil has an off track moment. |
| 10:28:38
| Vettel moves third fastest in his BMW Sauber. |
| 10:30:06
| Hamilton vaults fastest on his first timed lap. Heikki Kovalainen is on track in his Renault. |
| 10:30:52
| The circuit is quite busy now. Most of those who have set a time are back out and on a second run. |
| 10:32:12
| Felipe Massa joins the action in his Ferrari. Nick Heidfeld moves third fastest. |
| 10:33:36
| Now Heidfeld picks up another position and is second ahead of the Toyota duo. Kimi Raikkonen is on track. |
| 10:35:09
| Massa's first lap moves him firmly into the top ten but seven tenths off Hamilton |
| 10:35:51
| Raikkonen slots in behind his team-mate despite a small moment in the F2007. |
| 10:37:12
| Massa improves and is now third behind Hamilton and Heidfeld. |
| 10:37:28
| Alonso heads out as Hamilton pits his McLaren. |
| 10:38:48
| Massa getting close to the pace of Hamilton as he moves second fastest. Raikkonen also working his way up the order. |
| 10:39:52
| Fisichella completed a slow installtion lap some time ago and has not been seen since. |
| 10:40:19
| Alonso throws down the gauntlet as he vaults fastest on his very first timed lap. |
| 10:41:26
| Alonso improves again and extends his advantage to two-tenths over Hamilton. |
| 10:42:56
| Button improves in the Honda. The team are still chasing their first point of the season. |
| 10:44:03
| Fisichella and Mark Webber have yet to set a time. Both are now on track with half of the session complete. |
| 10:45:07
| After his first stint, Alonso returns to the pits. None of the front runners are currently on track. |
| 10:46:12
| Heidfeld, fourth, heads back out in his F1.07. |
| 10:47:50
| Vettel picks up two spots and is now sixth fastest as team-mate Heidfeld starts a hot lap. |
| 10:48:19
| Fisichella moves into the top ten in his Renault. |
| 10:48:48
| Heidfeld moves second, splitting the McLaren duo who both remain in the pits. |
| 10:49:51
| Vettel runs off track but is able to resume. |
| 10:50:53
| Now Heidfeld runs off track, rejoins and returns to the pits. |
| 10:51:09
| Hamilton, third, heads back out. |
| 10:52:02
| Barrichello is moving his way up the timesheets in his Honda. With Schumacher retired, he is the only active US GP winner this year. |
| 10:53:46
| It is close at the top as Hamilton retakes the fastest time in his McLaren Mercedes. |
| 10:56:35
| Sutil and Albers remain on track for Spyker. They are on quite a long run at the moment. Nakajima remains slowest and heads back out in the Williams. |
| 10:56:57
| Fisichella has had limited running so far in the session. He is back out in the Renault. |
| 10:58:08
| Hamilton remains on track, lapping a few tenths a lap off his own best time. Trulli remains on track and seems to have been out all session. |
| 10:58:36
| Massa back on track. |
| 11:00:18
| Now Alonso is back out in his McLaren with an hour complete of the 90 minute session. |
| 11:00:48
| Hamilton, Alonso, Massa and Raikkonen all out. |
| 11:01:13
| Hamilton pits. |
| 11:01:51
| Nakajima now splits the Spyker duo at the back of the pack. |
| 11:02:49
| Alonso picked up half a second and moves fastest. He remains on the harder tyre. |
| 11:03:34
| Raikkonen has improved and is now ahead of team-mate Massa. |
| 11:06:11
| Nick Heidfeld back on track in his BMW Sauber as Schumacher takes to the grass in his Toyota. |
| 11:07:51
| Nick Heidfeld picks up a position and moves second, splitting the McLaren duo once again. |
| 11:09:28
| Kovalainen is back out and aiming to improve on his current 15th position. |
| 11:10:13
| Raikkonen is on track and remains in fourth position. |
| 11:11:53
| Raikkonen has pitted. Few drivers out at the moment as Trulli has a grassy moment in his Toyota. |
| 11:12:21
| Vettel, sixth, is back out with less than 20 minutes remaining. |
| 11:13:35
| Vettel is the first driver to opt for the softer tyre in this session. It will be interesting to see what it is worth in terms of lap time. |
| 11:14:51
| Vettel moves up three positions to third having found half a second on the softer tyre. |
| 11:15:38
| The young German remains out and on another quick lap. |
| 11:16:43
| Just Sato, Nakajima and Vettel out at the moment. |
| 11:18:21
| Barrichello and Massa rejoin the action. |
| 11:20:59
| Vettel has pitted his BMW Sauber. |
| 11:21:28
| Hamilton is back out now in his MP4-22. |
| 11:23:46
| Hamilton is on the soft tyre and on a fast lap. |
| 11:24:30
| Heidfeld is also on the soft tyre as he looks to improve. |
| 11:25:19
| Hamilton called off his last lap with traffic while Heidfeld found four-tenths. |
| 11:25:35
| Hamilton called off his last lap with traffic while Heidfeld found four-tenths. |
| 11:26:20
| The track now busy as they all look for a late session gain. |
| 11:27:21
| Alonso on track as Hamilton pits after running very close to the wall |
| 11:29:22
| Alonso improves again and is firmly in control of this session. He was also on the soft tyre which really is worth half a second. |
| 11:29:46
| Sutil has spun and got stuck in the gravel. |
| 11:30:08
| The chequered flag is out. |
| 11:30:31
| Coulthard moves up the order in his Red Bull. |
| 11:31:17
| Sutil put wheels on the grass and that is why he went off at turn 11. |
| 11:31:56
| So Alonso is fastest from Heidfeld, Hamilton, Vettel. Raikkonen, Rosberg, Massa and Coulthard. |
