2009 Race Across the Sky" captured the imagination of countless mountain bike enthusiasts when Lance Armstrong not only won the Leadville Trail 100 Mountain Bike Race, but set a new course record that seemed unattainable. This year, "Race Across the Sky 2010" delves into the resulting race entry boom, including record numbers of citizen riders, along with those aspiring Leadmen and Leadwomen who go beyond this one-day cycling event to conquer merciless running races during their ambitious five- race endeavor.