Maybe the most fascinating by running a marathon race is that anything can happen. There is so much unexpected that can arise, and you cannot control the weather, competitors or the route. If it is your first marathon, you do not know your own reactions in general, and particularly not after 35 km. In How to prepare for and Complete a Marathon, one of your most important tasks will therefore be, to manage what you can do as the first way both in the period up to the race and on the race day.
