The Rahal Letterman Lanigan Racing driver declared the day before he could dominate the field if he started up front.
Graham Rahal completed a dominant drive on Sunday to win the opening half of the Chevrolet Detroit Grand Prix, the first race of the IndyCar Series doubleheader weekend on the Belle Isle Park raceway.
Rahal's wife, Courtney Force, escaped without injury in a qualifying run Friday in Epping, New Hampshire.
Rahal became the seventh IndyCar driver to win in the first seven races of the year.
Graham Rahal exits his auto after winning the first race of the IndyCar Detroit Grand Prix double- header.
Driving the No. 15 SoldierStrong / TurnsforTroops.com Honda, Rahal collected the fifth win of his 11-year Indy vehicle career. It is the 93rd career podium for the four-time series champion, breaking a tie with retired teammate and friend Dario Franchitti for fifth all-time.
Controversial win for Team NZ
If Oracle wins the qualifiers, it will carry a one-point bonus into the first-of-seven America's Cup match beginning June 17. This means France, Japan and Sweden all have two points, leaving the event wide open.
Scott Dixon finished second and James Hinchciffe finished third, followed by Josef Newgarden in a Chevy and Alexander Rossi in fifth. Helio Castroneves, who finished seventh in the No. 3 Hitachi Team Penske Chevrolet, is second with 273 points and Indianapolis 500 victor Takuma Sato, who finished eighth today in the No. 26 Andretti Autosport Honda, is third in points with 258. Hinchcliffe spun around, hitting only the right-side barrier with light contact.
"Then we got that yellow at the right time right after our (Lap 25 pit) stop".
For Dixon, he will now be resting the ankle and preparing himself for more of the same on Sunday for race two, although he hopes to improve the performance of his vehicle to be in with a better shot of victory. Daly's vehicle simply lost power.
Castroneves was the only Chevrolet to crack the top six qualifying positions.
It is also the first street-course victory by the Rahal team since co-owner Bobby Rahal won the inaugural Belle Isle race 25 years ago.
The 28-year-old Rahal, son of racing legend Bobby Rahal, led 55 out of 70 laps to win the first Dual in Detroit at the Grand Prix on Belle Isle Saturday afternoon.