Krispy Kreme Challenge
Where: Raleigh, North Carolina
Held in February, the Kripsy Kreme Challenge is much easier to run than a marathon -- it’s only five miles – but it may not burn off the 2,400 calories from 12 doughnuts. Or, as the race organizers put it: “The mantra of the Kripsy Kreme Challenge epitomizes the test of physical fitness and gastrointestinal fortitude.”