TEDxSioux Falls 2011: Challenged By Choice by Mike Dunlap

After decades as a nationally competitive marathoner, Sanford Health exercise physiologist Mike Dunlap transitioned his competitive spirit to cycling. After years of competing in ultra (400+ mile) cycling events, he decided to challenge himself. In 2010, he entered the grueling 3,000 mile Race Across America (RAAM), which has been called "the toughest bike race in the world." He did not finish the race. In 2011, he has entered the 860 mile Race Across the West (RAW). He plans to try the Race Across America again in 2012.