 By lap 10 , Massa had opened his lead over Räikkönen to 4 @.@ 4 seconds , ahead of Kubica , Heidfeld , Kovalainen and Trulli . Kubica was the first of the frontrunners to pit , on lap 17 . Räikkönen and Trulli followed on lap 20 ; Massa pitted from the lead one lap later . Following the first round of pit stops , the gap between the Ferraris was 5 @.@ 4 seconds , however by lap 31 Räikkönen had closed to within four seconds of his teammate . Massa held a 3 @.@ 6 second lead over Räikkönen when the two Ferraris pitted for the final time on laps 39 and 38 , respectively , and Massa retained his lead into the final stint . Kubica pitted on lap 41 , Heidfeld on lap 45 , and Kovalainen on lap 47 . 
