Power then made up another place at the restart, reclaiming a podium spot from his rookie team-mate, while Tagliani undid all his good work by spinning and dropping back behind Wilson and Rahal to occupy eighth.
At the front, however, things were more static, with Doornbos holding a tidy gap to Bourdais and the Frenchman doing likewise to Power. Bourdais was trying all he could to close the deficit to the leader, knowing that the fastest lap he had set when the going was good would only give him a share of the championship lead should the order remain the same.
It was at this point that the first hint of dissatisfaction began to show in the Frenchman, with radio traffic suggesting that he was unhappy with the leader's tactics but, contrary to Cleveland - where he penalised for closing the door on Rahal - Doornbos did not appear to do much wrong as the field took its various lines to cope with the conditions. The stewards agreed and left the status quo
to run its course.
Doornbos duly took the win, his first in Champ Car as he took his podium tally to five in six races, with Bourdais coming home nearly thee seconds adrift. Power completed the podium after a comeback drive from the rear of the field, while Pagenaud was rewarded with fourth after a similar performance. Wilson rounded out the top five, having dispensed with Jani in the closing stages.
It was smiles all round in the Minardi Team USA camp as the rebranded squad racked up its second win since Surfers' Paradise last season, but long faces elsewhere, with Bourdais ready to air his grievances with anyone who would listen.
Sadly for the Frenchman, the majority of those within earshot disagreed with his rant against the winner, roundly booing what they saw as sour grapes from a man who has come to take winning for granted.
With just a week before the field takes up the cudgels for a seventh time, Bourdais and Doornbos head to Toronto tied on points but with the psychological ball firmly in the former tennis ace's court.