Competitor bio:

David started running at 57, after a long sedentary life. For no particular reason he simply felt he should develop a fitness habit but then uncovered a modest talent. He improved over time and after three years, ran his first marathon. With two more attempts, he qualified for and ran the 2016 and 2017 Boston Marathons and is registered to run Boston in 2018. To date, he’s run 20 marathons, the most recent was last November, where he set a PR for that distance. David has run a few ultramarathon races, including three 24-hour races. His most unique running event has been the Allen (TX) Double-Double, running a 5K followed by a marathon an hour later on both New Year's Eve and New Year's Day. David is retired from self-employment as a software developer and manager. He occupies himself with running, hobbies, and volunteer work in Adrian, Michigan.