Barcelona, Spain (My Sportsbook) - Jenson Button's stellar season in Formula One continued Sunday with a victory in the Spanish Grand Prix at Circuit de Catalunya.

Button's Brawn GP team opted for a two-stop pit strategy instead of three that helped the Briton capture his fourth win in the first five grand prix this year.

"They switched me to a two stop just to cover all of our basis," Button said. "Three stop was the quickest strategy we thought. I wasn't sure about going to a two-stop. When they put the fuel on board, it felt very heavy, and I didn't think I would come out ahead."

Button started from the pole, but teammate Rubens Barrichello quickly passed him for the lead heading into turn one.

Barrichello's three-stop strategy backfired, allowing Button to capture the lead for good on lap 55 of the 66-lap event.

"To come away with a win, they all mean a lot obviously," Button said. "Coming back into Europe and winning in Barcelona, a circuit I've always found a little bit tough, it's a good feeling and it gives me a lot of confidence for the rest of the season."

Button, who became the ninth straight Spanish GP winner from the pole position, has now extended his lead in the F1 world championship to 14 points over Barrichello, who finished second.

"I had a great start and went to the lead," Barrichello said. "I was a tiny bit quicker than Jenson to begin with, and I had two more laps of fuel. I was running quite well, and then I heard that they changed Jenson's (pit) strategy, and I had to keep on pushing."

Brawn swept the first two positions for the second time this year. Button won the March 29 season-opening Australian Grand Prix, while Barrichello finished second in Brawn's maiden race.

Mark Webber overtook his Red Bull teammate Sebastian Vettel in the closing laps to finish third. Vettel settled for fourth.

Renault's Fernando Alonso, a Spaniard, passed Felipe Massa from Ferrari on the final lap to take fifth. Massa gambled on fuel in the late-going, but it held up for a sixth-place result.

BMW Sauber's Nick Heidfeld, who celebrated his 34th birthday today, finished seventh, and Nico Rosberg from Williams was eighth. Defending world champion Lewis Hamilton from McLaren wound up ninth, while Toyota's Timo Glock completed the top-10.

Jarno Trulli lost control of his car and went off track coming out of turn two on the opening lap. Trulli slammed into Adrian Sutil after he was tagged by Rosberg, triggering a four-car pileup. Toro Rosso drivers Sebastien Bourdais and Sebastien Buemi collided in the aftermath.

Trulli, Sutil, Bourdais and Buemi were forced to retire, as the safety car was deployed the next four laps for track cleanup.

"I lost some positions and was right behind Alonso and Rosberg going into the first corner," Trulli said. "Rosberg went off then during the next corner. He came back on to the track right next to me. I had to avoid him because he came back on really quickly. I had to steer off the track and lost control of the car over the grass, so I spun and someone hit me."

Heikki Kovalainen retired on the eighth lap when the gearbox failed on his McLaren.

Kimi Raikkonen, the defending Spanish GP winner and 2007 world champion, had his day cut short when his car suffered mechanical failure after 18 laps. The Ferrari driver also struggled in qualifying this weekend.