Harvick built a comfortable lead before turning back a late challenge by Glen Luce of Turner as he upstaged the field of local and regional drivers at Oxford Plains Speedway.
Heavy rain on Sunday postponed the race for only the third time in 35-year history of the race. Racing finally got under way Monday night after more rain.
Harvick, ninth in the Sprint Cup standings, took advantage of NASCAR's weekend off to race at Oxford Plains Speedway. His idea of a vacation is racing.
"It's got to be fun," Harvick said before the race. "It's an off weekend from my normal job. That's the first priority, to have fun."
The TD Banknorth 250 hasn't always been kind to NASCAR's elite drivers.
Matt Kenseth had a third-place showing in 2004. Kyle Busch was a contender both years he raced, finishing sixth his first year and challenging for the lead before his second attempt ended with a blown engine.
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