The victory was the third consecutive for Bourdais taking the defending series champion to a 53 point lead in the series with five races to go.
Rival Tracy finished the day in 16th after a mistake at turn 4.Tracy had a 11-second lead over the field until Lap 62 when he brushed the inside of the Turn Three fence trying to lap Timo Glock, which sent him into the Turn Four wall - after leading for 59 of 62 laps.
Bourdais took the lead on the restart and sprinted away leaving Dominguez and Allmendinger and building a 15-second margin-of-victory on his way to his third consecutive Champ Car victory. Bourdais also ran the fastest lap of the day to earn an extra championship point, giving him more than a full race's allotment of points over Tracy in his quest to become the first driver since Gil de Ferran (2000-2001) to repeat as Champ Car champion.
The series takes a week off before heading to Canada for the third and final time this season, visiting the picturesque Circuit Gilles-Villeneuve for the Molson Indy Montreal August 26-28.
QUOTES FROM THE TOP THREE FINISHERS:
Sebastien Bourdais: "When I saw PT in the wall, I was very surprised because PT makes very few mistakes and that's not the kind of mistake he makes when he's up front like that. I am just glad we did it. Second year in a row it was very important for us for Centrix and PacifiCare, for everybody."
Mario Dominguez: "I almost lost the podium because I made a mistake and I pressed the water button instead of the radio. All the water splashed in the helmet. So it got all dirty, then it just started to fog up. In fact, during the yellow I had to take off my glove completely, tried to wipe it from the inside and put it back on again. That was a mess. It was so bad I lost concentration, missed the braking point. Then I said to myself if I don't make the podium they are going to kill me. So I did."
A.J. Allmendinger: "We seemed to have a pretty good car in the first like 10 laps of a run and then we kind of just -- were all weekend kind of missing the setup on from 10 laps on, so you know, I just came in with the attitude this weekend that -- the last three weeks were quite disappointing. I have been putting a lot of pressure on myself."
