They don't prepare properly… I’ve seen so many people who do half their weekly mileage in one day: their Sunday long run. That alone is a recipe for injury and

They don't prepare properly… I’ve seen so many people who do half their weekly mileage in one day: their Sunday long run. That alone is a recipe for injury and, come race day, a good way to find that “wall” everyone talks about. Top that off with weekly mileage that hovers around 30 miles/week at best, and yeah, folks are going to get injured and/or be barely able to walk the next day. Running marathons isn’t bad for you, but running marathons when poorly trained is.