For many a marathon is the ultimate challenge.  Completing a 26.2 mile course is a big accomplishment for anyone.  People tend to fall into one of three categories: 1. There’s no way I could or ever would do a marathon, 2. I don’t know if I could do a marathon – maybe someday I’ll try it, and 3. I’ve done a marathon. If you find yourself in category number two, you might be amazed...