Australian IndyCar driver Will Power has won for the third time this season, claiming victory on the street course in Toronto.
A caution with four laps remaining set up one final restart on the temporary course at Exhibition Place.
Power got a great start to pull away from teammate Helio Castroneves to give Penske a 1-2 sweep.
Toronto native James Hinchcliffe finished third for his first career podium at his home race.
Defending race winner Josef Newgarden crashed and finished last in the 22-car field.
Newgarden was coming off a dominating victory last week on the oval at Iowa despite a broken right wrist suffered in a crash at Texas in June.