 Rossi's Honda lacked the horsepower of Pagenaud's Chevrolet, which was ultimately the deciding factor as he finished the race in second behind Pagenaud.Rossi's second-place finish at Indianapolis sparked a run of three such finishes in four races as he also finished second at the first Detroit race and at Texas.At Road America in June, Rossi broke through to win with a 28.4-second margin of victory over second-place Will Power.