Runner's Rule Book

Every sport has rules. Running is no exception. If you''re curious, just visit the Web site of USA Track & Field, the sport''s governing body, where you''ll find detailed dictates on everything from disqualification to bib-number placement to the caliber of the starter''s pistol.

But what about the everyday rules of running? The unspoken ones that pertain to the lingo, behavior, and etiquette that ...