Trevor Bayne Wins Daytona 500: The 10 Biggest Upsets in NASCAR History

Sunday, the racing world witnessed what is likely the most improbable victory in the 53-race history of the Daytona 500.Trevor Bayne, a 20-year-old Nationwide Series regular with just one Sprint Cup start prior to the "Great American Race," won the race in the No. 21 Ford for Wood Brothers Racing, a team that has ran and still plans to run a limited schedule due to a lack of full-time sponsorship over the past few seasons.He became the second-youngest winner in Sprint Cup history, the most youthful driver to ever do it at the Daytona 500.Needless to say, Bayne's accomplishment is a huge upset; however, where does it rank among the greatest upsets in NASCAR history.Here's a look at where it stacks up.Begin Slideshow...

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