During the 2011 IndyCar Series season he won 6 races; Barber Motorsports Park, São Paulo, the second doubleheader event at Texas Motor Speedway, Edmonton City Center Airport, Infineon Raceway, and the inaugural Baltimore Grand Prix. However, his season was far from easy. At Toronto he and championship leader Dario Franchitti touched in Turn 3 while battling for 5th, resulting in a spin for Power, which put him midpack where he was hit by former teammate Alex Tagliani. Power was irate with both drivers, particularly Franchitti, who with some level of controversy was not penalised for the contact and won the race.