Competitor bio:

Dan has completed 200 marathons and ultramarathons but describes himself as the classic tortoise who hopes to finish as the oldest and probably the slowest 7-7-7 runner ever. The 76-year-old is the father of three brilliant and beautiful daughters who have blessed him with 3 great sons-in-law and nine wonderful grandchildren. Growing up on a ranch near the small town of Madill, Oklahoma, Dan was educated at Thomas Jefferson Preparatory School in St. Louis, Mo, Harvard University and the University of Oklahoma College of Law and is still practicing Law and operating different businesses. Dan has been involved in Oklahoma education as a Regent at the University of Oklahoma and the first and only Chairman of the Oklahoma School of Science and Mathematics for 33 years.