Willis wins women's half marathon. Omae, Erdelyi capture marathon crowns.
Race organizers will be on the lookout for hypothermia.
Check out these shots from the Zappos.com Rock 'n' Roll Las Vegas Marathon & 1/2 Marathon
The race will set a nighttime record.
World's largest nighttime running event sold out at 44,000 entries.
It was a life-and-death situation for the Elvis-costumed running doctor.
Check out these great shots of the post-race concert taken by Nils Nilsen!
View photo galleries from the 2010 Zappos.com Rock 'n' Roll Las Vegas Marathon & 1/2 Marathon and ING KiDS ROCK Las Vegas presented by
Here's another collection of great images from the biggest event ever to hit the Vegas Strip,