You need to do whatever you need to for you to know your mind can handle it. Once you can say with zero doubt that you can complete a marathon, you can! Tactically it’s not that hard to run the 26 miles. But you need the right motivation and the right reason to not quit halfway through. Because after 20 miles your mind makes it easy to say you did a good enough job and drop out.
That is why I ran for Team World Vision and raised money from friends and family. It kept me accountable to actually finish and not let them down. I’m sure if it was just my own motivation I couldn’t have done it. My brain was fighting me the whole time wanting to quit. And with each mile that idea seemed more and more beautiful.
“When your mind is telling you you’re done, you’re really only 40 percent done.”David Goggins
Another great option is to run it with a friend that has completed a marathon. They will help make sure you don’t quit too.
The physical ability to run a marathon is the easy part.