Zappos.com reached an multi-year agreement to become the title sponsor of the Rock 'n' Roll Las Vegas Marathon & ½ Marathon to Benefit the Crohn's and Colitis Foundation of America (CCFA).

The marathon is set for Sunday, December 5 on the Las Vegas Strip.

In epic fashion, Las Vegas' signature running event was rebranded last year and managed for the first time by San Diego-based Competitor Group, drawing entrants from all 50 states and 39 countries. Nearly seven and a half miles of the world famous Las Vegas Boulevard are completely closed for the race, with the entire 13.1-mile half marathon course running on the 'The Strip.'

After experiencing the inaugural Rock 'n' Roll Las Vegas Marathon first hand last year, Aaron Magness, Senior Director of Brand Marketing & Business Development for Zappos.com, commented that becoming the Title sponsor was an easy decision.

“Taking part in last year's Rock 'n' Roll Las Vegas Marathon was great,” said Magness. “Running down the strip, listening to the bands along the way, seeing the community come out to support the runners, it's truly an event that transcends the sport of running.  We believe our partnership with the Competitor Group represents a perfect pairing with the Zappos.com brand's focus on being passionate and determined (yes, that's one of our core values!).  Also, running is so much more fun with 32,000 of your closest friends!”

“We share Zappos' passion and commitment to offering great experiences and are thrilled to have Zappos.com title our Las Vegas event,” said Scott Dickey, President of the Competitor Group. “Their dedication to service is invaluable to our success and will ensure that we continue to break the mold, staging one of the most anticipated running events in the nation on the Las Vegas strip.”

Looking to build on the success of last year, CCFA returns as the official and exclusive charity of the Las Vegas event. Through the Team Challenge half marathon training program, CCFA runners raised more than $3.9 million, the largest single day fundraiser in the 46-year history of the foundation. Since its inception in 1998, charities have raised over $233 million though Rock 'n' Roll Marathon Series events.

After running a high energy, action packed course down 'The Strip,' participants can get ready to party at a finish line festival like no other. The post-race concert is free and open to the public, taking place immediately following the race at the finish line festival, near the Mandalay Bay parking lot.