Las Vegas Marathon

The prize money on offer in this year's Las Vegas Marathon has jumped by 26% from last year to $164,000, attracting around 15,000 runners.

As usual, the elite runners compete amongst the less serious. Expect to see runners dressed as everything from elephants to Elvis. And, as this is Vegas, there's even a run-through wedding chapel.

It's not all about running either. The entertainment capital of the world can expect to see numbers swell this weekend as an estimated 2.8 extra people will be in the city for each person taking part in the Las Vegas marathon.