Castroneves, who had earned three second-place finishes at Edmonton in the past and had a potential 2010 win there ruined by a late blocking penalty, was exuberant in Victory Lane after beating Sato to the stripe by nine-tenths of a second. The triumph helped him leapfrog Team Penske teammate Will Power in the standings and pull within 23 points of championship leader Hunter-Reay, who finished 7th in the race.
Power slipped to third in the standings, but also gained points-wise on Hunter-Reay and now sits 26 points back of the American as the series heads for Mid-Ohio Sports Car Course (Aug. 5, 12:30 pm ET on ABC) in two weeks.
Graham Rahal finished fourth to earn his first top-5 finish since Texas and Alex Tagliani settled for fifth (his best result of 2012) after jumping from fourth to the lead on Lap 1 and staying up front for the race's first half.
More to come...