Hometown favorite James Hinchcliffe finished 22nd after his engine failed. He had been running fourth 28 laps in.
Hinchcliffe had no luck with his engines this week. He qualified ninth, but an unapproved engine change on Friday forced him to start 19th.
"We had a mechanical issue and started losing power in the engine, and it's too bad," said Hinchcliffe, who grew up outside of Toronto. "It's a heartache to go out early here."
Scott Dixon's run of engine troubles continued. He was the first driver out of the race when his engine failed seven laps in.
That was a big blow in several ways for Dixon, who entered third in the points standings. He also entered the week having used up all five of his approved engines for the season. His next change will be unapproved, forcing an automatic 10-spot penalty in the grid in his next race.
The series takes a week off and will stay in Canada for its next race in Edmonton on July 22.
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