For the 2010 season, he felt Penske had reached the potential of its ageing Dallara-Honda car, and feared other teams would exploit this to close the performance gap. Castroneves won the inaugural Indy Grand Prix of Alabama to extend his record of winning a race to ten straight seasons. After qualifying on pole position for the Indianapolis 500, a stall in a pit stop relegated him to ninth. Five races later, at the Honda Indy Edmonton, Castroneves was the first to finish, but was demoted to tenth after he was deemed to have blocked his teammate Power. He won two consecutive races, at Kentucky Speedway and Motegi, before ending the season with a fifth at Homestead-Miami. With 531 points, Castroneves was fourth in the drivers' standings.