| 09:50:25
| Welcome to F1-Live.com and our live coverage of the Saturday morning practice session for Indianapolis. The 60-minute session begins shortly. |
| 09:52:09
| Yesterday was an all McLaren affair with Fernando Alonso leading both the morning and afternoon sessions. The Spaniard’s morning time of 1:11.925s was the fastest time of the day as they all tried the soft and harder option available to them from Bridgestone. |
| 09:54:11
| Lewis Hamilton ended the second session in P2, 0.153 adrift of Alonso. Both Alonso and Hamilton declared themselves relatively happy with the balance of the MP4-22. |
| 09:56:21
| Felipe Massa and Kimi Raikkonen were third and fourth fastest respectively for Ferrari, both with half a second of Alonso. Once again it is McLaren and Ferrari at the head of the timesheets. |
| 09:58:10
| Nick Heidfeld was fifth fastest but said he was unhappy with the balance of his BMW Sauber. David Coulthard was sixth fastest ahead of Nico Rosberg, Heikki Kovalainen, Rubens Barrichello and Jenson Button. |
| 10:00:12
| The third practice session of the US Grand Prix weekend is now underway. |
| 10:00:38
| The pit lane is open and a number of cars head out. They will mostly all complete an installation lap and then pit. |
| 10:01:19
| Friday running is deemed as free practice. Now they have the race engines on board. |
| 10:02:40
| The Ferrari duo remain in the pits and have yet to head out. |
| 10:03:48
| Hamilton pits his McLaren. Alonso will follow him back to the pits shortly. |
| 10:04:29
| Alonso pits. Button, Barrichell, Massa, Raikkonen, Webber and Coulthard have yet to complete an installtion lap |
| 10:05:25
| Now Webber heads out in his Red Bull Renault. He had a gearbox problem yesterday and lost some track time. |
| 10:05:40
| Coulthard joins his team-mate on track. |
| 10:06:41
| The Red Bull duo pit. No one on track. |
| 10:08:44
| With no one on track, this session is the last chance for the team's to work on qualifying and race setup. The soft tyres seem good for a hot lap, but may drop off too much to be the tyre of choice in the Grand Prix. |
| 10:09:55
| Ralf Schumacher heads out. Toyota had a pure grip issue yesterday with Schumacher just 20th and Trulli 17th. |
| 10:10:27
| Fisichella heads out. He admitted he was confused with his R27 yesterday and was 15th fastest. |
| 10:10:40
| Trulli joins team-mate Schumacher on track. |
| 10:12:10
| Schumacher posts the first timed lap of the session. |
| 10:12:36
| Trulli moves fastest ahead of Schumacher. |
| 10:13:20
| Albers, Sutil, Speed, Liuzzi, Kovalainen join the action. |
| 10:13:52
| Fisichella's first lap moves him P3. Heidfeld and Vettel out for BMW Sauber. |
| 10:14:26
| Kovalainen moves second fastest. He was really happy with his car yesterday. |
| 10:16:06
| Trulli remains fastest from Kovalainen, Schumacher, Fisichella. |
| 10:16:21
| Heidfeld now moves fastest. |
| 10:19:05
| Vettel has worked his way up to sixth in the BMW Sauber ahead of Davidson, Liuzzi, Sato and Speed. |
| 10:19:26
| Kimi Raikkonen heads out in his Ferrari |
| 10:20:39
| Kovalainen was on a hot lap but pitted. |
| 10:21:08
| Alonso joins rivals Raikkonen and Massa on track. |
| 10:21:30
| Raikkonen moves second fastest on his first timed lap. |
| 10:22:04
| Massa immediately takes over the number two position by a fraction of a second. |
| 10:22:55
| Kovalainen back out and lapping fast. |
| 10:23:32
| All change at the top as Alonso moves fastest from Massa and Heidfeld. |
| 10:24:22
| Hamilton moves fastest by two-tenths from Alonso. |
| 10:25:40
| Rubens Barrichello is the only driver now not to have set a lap time. Alonso pits, Hamilton remain out. |
| 10:27:43
| Fisichella improves and moves sixth fastest |
| 10:30:29
| Barrichello is on track and should set his first timed lap soon. Button is 16th and in the pits. |
| 10:31:57
| Little change at the top with most of the front runners in the pits. Kovalainen is back out in his Renault. |
| 10:33:16
| Ralf Schumacher making progress as he moves fifth fastest. |
| 10:35:45
| The top runners all in the pits. Vettel is back out in his BMW Sauber. |
| 10:37:11
| Felipe Massa back out in his Ferrari. He needs to find four tenths to challenge Hamilton |
| 10:37:31
| Raikkonen leaves the pit lane in the sister F2007. |
| 10:38:32
| With just over 20 minutes remaining, Hamilton is back out in his McLaren for a second run. |
| 10:40:09
| Hamilton is on a fast lap. Alonso in joining the action in the second McLaren. |
| 10:41:50
| The order seems set at the moment. They will all be running fairly worn tyres at this point of the session. For the third and final run in this session, some will opt for a new set and a low fuel load. |
| 10:42:45
| Hamilton has returned to the pits. Alonso, Massa and Ralf Schumacher |
| 10:43:51
| Anthony Davidson moves into the top ten in his Super Aguri Honda. |
| 10:46:39
| Only Heidfeld, Fisichella, Vettel, Kovalainen on track amongst the front runners. |
| 10:47:11
| Vettel is looking to move into the top ten with the lap he is currently on. |
| 10:47:49
| Impressive as Sebastian Vettel moves fastest with what must be a low fuel new tyre run in his BMW Sauber. |
| 10:50:05
| Coulthard is back out in his Red Bull and aiming to improve on P13. |
| 10:50:51
| No improvement from Coulthard on that lap. |
| 10:52:16
| Vettel is on a long run in his BMW Sauber. After his hot lap, his pace has dropped off by over a second. |
| 10:52:26
| Now Vettel pits. |
| 10:53:29
| Only Barrichello, Trulli and Davidson out at the moment. |
| 10:54:07
| With six minutes remaining, there will be a final rush. |
| 10:54:51
| Raikkonen heads out. Massa and Hamilton also back out. |
| 10:55:55
| Vettel, Schumacher and others now out for a final run. |
| 10:56:49
| A number of drivers now on fast laps. Vettel remains fastest at the moment however. |
| 10:57:03
| Raikkonen moves fourth fastest. |
| 10:57:43
| Hamilton pits as Fisichella moves fifth fastest. |
| 10:58:18
| Alonso, third is pushing hard in his McLaren |
| 10:59:01
| Alonso finds time and moves fastest ahead of Vettel and Hamilton who is back out. |
| 10:59:25
| Coulthard moves ninth fastest. |
| 11:00:21
| The chequered flag is out. |
| 11:01:01
| So it is Alono again at the head of the timesheets from Vettel, Hamilton and Kovalainen. |
| 11:02:04
| Nick Heidfeld is fifth fastest ahead of Raikkonen, Massa, Fisichella and Coulthard. A strange session as some have gone for a low fuel fresh tyre run, some have not. We will see who is really fast later on. |
