You’ve spent your training runs loping along tree-lined trails or quiet back roads with your herd. But one day, you find yourself on a city street inside an immense crowd of unfamiliar beasts. Music blares, crowds roar, and you have to fight your way through a veritable obstacle course to reach your destination. Add the pressure to perform and months (if not years) of preparation and expectation, and you have the perfect description of a big-city race—and a potential recipe for a major mental meltdown. Read the full article for Runner’s World.