Rookie sensation Lewis Hamilton did it again, racing to his second straight Formula One victory in Sunday's U.S. Grand Prix at Indianapolis Motor Speedway.

The first black driver in F1's 61-year history has finished all seven races this season in the top three. He now leads Mercedes McLaren teammate and two-time world champion Fernando Alonso by 10 points in the standings.

Lewis Hamilton leads the F1 driver standings in his rookie season.
(Clive Mason/Getty Images)

The two finished 1-2 for the third time this season, but this time the order was reversed from Malaysia in April and last month's race at Monaco as the 22-year-old Englishman added this victory to his inaugural F1 triumph last week in the Canadian Grand Prix.

"Coming into the season, being realistic, I never expected anything like this, but I hoped to do well," Hamilton said. "I hoped maybe I'd get a podium at some point. This is just insane."

Alonso tried hard to pass his less experienced teammate at the start, darting to the outside and pulling nearly alongside Hamilton for a moment, then backing off and diving to the inside as the leaders squirted through the first two narrow turns, a sharp right-hander and then a left-hander.

Hamilton managed to stay in front and was able to continue to fend off the pressure by the hard-charging Spaniard to the end of the 73-lap event on Indy's 2.605-mile road circuit.

Alonso almost wrested the lead from Hamilton on lap 39. He had been dogging the back of his teammate's McLaren for several laps and pulled alongside on the main straightaway but was unable to complete the pass.

The outcome was still in question until Alonso locked up his brakes on lap 47 and drove through the grass, allowing Hamilton to pull out to a 2.5-second lead. Hamilton was able to drive on to the win without further challenge, crossing the finish line 1.5 seconds ahead of Alonso.