In 2008 he was named a "Hero of Running" by Runner's World. In 2012, David took on the challenge of beating the world record for the most pull-ups done in 24 hours, the main aim of the challenge was to raise money for the Special Operations Warrior Foundation. After 6 hours and 30 minutes in, David had completed 2011 pullups (halfway to the record). By 9:15 pm, after 13.5 hours David completed pull-up 2588. He had been in considerable pain for hours as a severe bulge burst through the skin of his right wrist. A medical x-ray at 10:30pm confirmed a right extensor polycis complex partial tear. The pull-up bar David used for the Guinness challenge was poorly designed. David used a totally different bar during the months of training prior to this event. Despite not beating the record Goggins m