Will Power has won for the third time this season, using a victory Sunday on the street course at Toronto to tie Team Penske teammate Simon Pagenaud for the most wins this season.
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.