LAS VEGAS, March 8, 2011 /PRNewswire/ — The Rock ‘n’ Roll Marathon Series, a musical format that revolutionized the running industry, has surged to the front of the pack once again by announcing the first ever nighttime start for the 2011 Zappos.com Rock ‘n’ Roll Las Vegas Marathon & 1/2 Marathon to Benefit the Crohn’s & Colitis Foundation of America.

Runners will span across all eight lanes of Las Vegas Boulevard on Sunday night, December 4, exclusively shutting down the neon-lit Strip in epic fashion and instantly becoming the World’s Largest Nighttime Running Event™.

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