World's largest nighttime running event sold out at 44,000 entries.
Renowned acing series adds a second European event.
Iconic race series adds Madrid to its expanding portfolio.
Popular road racing series goes shorter but provides same unique experience.
The 2011 Endurance LIVE Awards Gala will air on Universal Sports this Friday, March 18 at 5:30 p.m. EDT/2:30 p.m. PDT.
More than 30,000 runners expected for two races on December 4.
Goal is to bring awareness to childhood obesity.
Dodge joins as title sponsor of first Latin Music Miami Beach Half Marathon.
Some say it would take away from iconic stature of the ING New York City Marathon.