Founded in 2009 by ultramarathoner Molly Sheridan, Desert Sky Adventures (DSA), is a full-service race management, training and running tour company dedicated to helping people run and walk for health and adventure. DSAs signature Las Vegas based events include: Summerlin Half Marathon, Pilgrims Rock, an event that includes a half marathon, 5K, 10K and 1-mile walk and the Las Vegas 100 that offers a 100-mile solo race and 150K, 100K, 50K and 25K relay options. DSA also provides race-training programs with certified coaches for all levels, including online programs, and facilitates adventure-running trips for participants to compete in events such as the Great Wall of China Marathon. Founder, Molly Sheridan is a competitive ultramarathoner, motivational speaker, professional race organizer and author. In 2007, Sheridan completed her first marathon, and since then, she has run over 45 ultramarathons.