Dave Mackey

Dave Mackey is an American ultra runner and adventure racer who lives in Boulder, Colorado, and works as a physician assistant in emergency medicine. He has set course records at many significant national ultra-distance trail races, including the Waldo 100k, Bandera 100K and Moab Red Hot 50k, and has won the Miwok 100K three times. He won the Montrail Cup in 2004 and 2011, was named Ultrarunning Magazine North American Ultrarunner of the Year in 2011, and won the USA Track and Field Ultrarunner of the Year in 2004 and 2005. He once held the Grand Canyon rim-to-rim-to-rim record at 6:59:57. After a fall on Bear Peak in 2015 he had his left leg amputated below the knee, and he still competes in mountain races.