Bad Santa Run, Scottsdale

Sorry—it's not OK to use a sleigh and reindeer to complete the Bad Santa Run. But you can, however, run or walk the holiday-themed 5K course. Afterward, the Santa-clad racers can attend the post-race festivities, where live DJs spin danceable jams and participants cheer on recipients of the fastest runner, best costume, and saltiest sweat awards. Making matters feel even more like the holidays, the run also benefits local children's charities.