The marathon is the crown jewel of distance running. Entering is one thing. Finishing is something else. And finishing with a respectable time...? For competitive veterans or recreational beginners, 4 Months to a 4-Hour Marathon tells exactly what to eat, what to wear, what to expect, and how to train. When race day arrives, author Dave Kuehls, senior writer at Runner's World and a marathoner himself, will have any competitor in the best shape physically and mentally. 4 Months to a 4-Hour Marath...