* Lap 1: Pole position qualifier Felipe Massa gets away cleanly to lead Lewis Hamilton through Turn One. Fernando Alonso briefly gets past Kimi Räikkönen, but is swiftly repelled. The Spaniard makes a move stick around the outside, however, as the world championship’s top two approach Turn Four. Nick Heidfeld and Robert Kubica lie fifth and sixth, from Giancarlo Fisichella, Mark Webber, Heikki Kovalainen, Jarno Trulli, Alex Wurz, Anthony Davidson, Nico Rosberg, Takuma Sato, David Coulthard, Rubens Barrichello, Vitantonio Liuzzi, Ralf Schumacher and Christijan Albers. Back at Turn Four the track is covered in carbon fragments after a three-car collision. Adrian Sutil tips Jenson Button into a spin and Scott Speed goes off in avoidance. Sutil heads for the pits for repairs after his third first-lap shunt in as many races. He loses two laps. Button and Speed are out on the spot. The Safety Car is deployed.

* Lap 2: Liuzzi pits to switch from mediums to softs.

* Lap 4: Restart. Massa leads by 0.6s. Rosberg passes Davidson.

* Lap 5: Coulthard passes Sato. Schumacher disposes of Barrichello.

* Lap 6: Coulthard passes Davidson. Liuzzi passes Albers.

* Lap 7: Massa extends his advantage to 0.9s.

* Lap 8: Liuzzi is handed a drive-through for passing while behind the Safety Car. Massa leads by 1.0s. Alonso is 3.1s further adrift in third, 0.6s clear of Räikkönen.

* Lap 9: Liuzzi serves his penalty.

* Lap 10: Hamilton posts a 1m34.809s – fastest lap so far – and closes to within 0.8s of Massa. Rosberg runs wide at Turn Six after almost clipping team-mate Wurz, who is fighting hard for 10th with Trulli. The German loses a place to Coulthard.

* Lap 13: Massa laps in 1m34.776s to restore his 1.0s advantage.

* Lap 14: Massa goes faster again: 1m34.693s. He’s 1.4s clear.

* Lap 15: Hamilton responds: 1m34.607s. He’s 1.0s behind Massa, 7.0s clear of Alonso. Trulli passes Kovalainen for ninth, Coulthard wrests 11th from Wurz.

* Lap 17: Hamilton ups his pace again: 1m34.490s. Massa, too, sets a personal best (1m34.648s) and the gap remains 1.1s. Coulthard, Wurz and Schumacher pit.

* Lap 18: More fastest laps: Massa 1m34.408s, Hamilton 1m34.270s. Webber pits.

* Lap 19: Hamilton and Fisichella pit. Hamilton rejoins sixth, behind Kubica. Rosberg and Kovalainen go off in unison at the final corner – and the Williams driver gains a place in the process.

* Lap 20: Sato and Albers pit.

* Lap 21: Massa peels in. He rejoins ahead of Hamilton. Alonso leads. Trulli pits, too. Fisichella passes Barrichello. Liuzzi pits for a significant period before rejoining.

* Lap 22: Alonso and Rosberg pit.

* Lap 23: Räikkönen, Heidfeld and Kubica all pit. The Finn rejoins just ahead of Alonso. Coulthard passes Trulli.

* Lap 24: Massa leads Hamilton by 4.6s, with Räikkönen another 5.9s adrift in third.

* Lap 25: Kovalainen pits. Coulthard passes Barrichello.

* Lap 26: Räikkönen carves 0.8s out of Hamilton’s advantage. Rosberg runs wide at Turn 13. Barrichello pits.

* Lap 28: Coulthard passes team-mate Webber for ninth. Webber’s fuel flap appears to be open. Davidson pits from sixth and rejoins 14th, behind Kovalainen. Liuzzi, two laps in arrears, pits to retire.

* Lap 29: Räikkönen closes to within 2.9s of Hamilton.

* Lap 30: With all first stops complete, Massa leads Hamilton, Räikkönen, Alonso, Heidfeld, Kubica, Fisichella, Coulthard, Webber, Trulli, Rosberg, Wurz, Kovalainen, Davidson, Schumacher, Sato, Barrichello and Albers.

* Lap 31: Coulthard passes Fisichella for seventh. Webber follows suit.

* Lap 32: Heidfeld passes Alonso for fourth.

* Lap 34: Wurz pits. Sato pulls off with a blown engine.

* Lap 35: Coulthard pits. Trulli passes Fisichella for ninth.

* Lap 36: Räikkönen laps in 1m34.523s – a personal best – to put Hamilton within 1.4s. Coulthard pits again, this time with a trail of smoke in his wake and flames licking around his engine bay.

* Lap 38: Webber sheds some bodywork – it looks suspiciously like the fuel flap – and makes a scheduled stop at the end of the lap. Schumacher peels in, too.

* Lap 39: Rosberg and Davidson pit.

* Lap 40: Massa pits. Hamilton leads.

* Lap 41: Räikkönen and Heidfeld pit.

* Lap 42: Hamilton leads Alonso by 9.4s. Massa, third, sets fastest lap: 1m34.067s. Webber is off the road at Turn 12. Trulli and Kovalainen pit.

* Lap 43: Alonso and Kubica pit.
 
* Lap 44:  Hamilton pits. He rejoins second, between Massa and Räikkönen. Heidfeld is fourth, from Alonso and Kubica. Fisichella pits from seventh.

* Lap 45: Massa leads Hamilton by 7.6s, with Räikkönen 1.8s further adrift. Alonso is 2.0s behind Heidfeld.

* Lap 46: The McLarens appear to be working well on medium Bridgestones. Hamilton is half a second quicker than both Ferraris, Alonso gains similarly on Heidfeld. Barrichello pits.

* Lap 48: Hamilton is 6.0s behind Massa... and closing.

* Lap 52: Davidson pulls off with a smoking engine.

* Lap 53: Hamilton trails by 3.9s but time is running out – and lapped traffic is dense.

* Lap 55: Massa is still 3.5s clear with two laps to go. Alonso is 0.9s behind Heidfeld.

* Lap 57: Massa wins by 2.3s from Hamilton, Räikkönen, Heidfeld, Alonso, Kubica, Trulli and Fisichella. Provisionally, Alonso, Räikkönen and Hamilton are level at the top of the championship table, on 22 points.