Think running a marathon is hard? Try 142 of them. In a row. Across the country.
That's exactly what Steve Knowlton did, starting out in Seattle and running straight through to Key Largo, Fla., averaging 37 miles each day -- 3,717 miles total -- through wind, rain, mountainous terrain and painful shin splints.
"There were some days I had to roll out of bed and crawl to the bathtub to loosen up my legs," Knowlton, 45, said from Florida, where he's vacationing with his family through...Full Story