The Chevrolet Detroit Grand Prix turned out to be a Honda rout as Dixon was second in Ganassi's Honda.
"That doesn't happen in other motor sports", Rahal said.
But Saturday it was all about the 28-year-old second-generation driver who joined his father, Bob, as a Detroit victor (the elder Rahal won in 1992).
Dixon did a remarkable job driving with a very sore left ankle following his spectacular accident at Indy.
Rahal ultimately crossed the line six seconds clear of the field to become IndyCar's seventh different victor in the opening seven races of the season, as well as coming good on his pre-race promise that he could dominate.
Rahal, in the No. 15 SoldierStrong / TurnsforTroops.com Honda, led 55 of 70 laps around the 14-turn, 2.35-mile temporary street course on the state park island located in the Detroit River. "I just didn't want to mess up". So we've got to come out blazing.
Tube stations shut after London Bridge incident
Police boats were searching the river - apparently looking for people who may have been thrown off the bridge, she said . Pence also tweeted, "Our thoughts & prayers are w/ the victims, courageous first responders & all the people of London".
As per the qualifying regulations Aleshin's time was also deleted for causing the yellow flag, after the Russian racer made light contact with the wall and took to an escape road.
"It's a little bit of uncharted territory for me", Rahal said. They did an awesome job, the auto was fast. Today was great for points. I probably couldn't get the most out of it but we were kind of there. "To be able to get off the (Firestone alternate) reds after the spin in the first turn there played to our advantage". The rescue crew got the vehicle righted so quickly he didn't lose a lap to the leaders.
Qualifying for Race 2 at Belle Isle starts at 10:45 a.m. ET Sunday and streams live on RaceControl.IndyCar.com.
Former Formula 1 racer Esteban Gutierrez could only manage P20 for his debut race in IndyCar, with the Mexican subbing for Sebastien Bourdais after the Frenchman sustained hip and pelvic injuries during qualifying for the Indianapolis 500.