When you’re training for a marathon it’s easy to get obsessed with the idea of a “long run”.
Yes, it’s important to build your distance and stamina. That'll come gradually. In the early stages of your training, your aim should simply be to increase the amount of time you spend on your feet.
One important tool to incorporate into your marathon training is walking. It may sound odd, but it’s a crucial aspect of getting your mind and body ready to run 26.2 miles.