Three weeks before the marathon your browser is full of search questions like “How do I run 42 km if I’ve never practiced?” or “Can I run if I got tired while getting dressed?”. If this is your case, then you gotta watch the PlanB special edition, in which they talk in detail about how to run a marathon safe and sound 🙂 Well, of course we are joking. If you haven’t trained, then start running over a short distance.