Mental depression and doubts were as draining as the actual physical exertion required to complete my daily mileage in the 3100. The secret to keeping the mental toughness needed in the race was to conquer or overcome the negative qualities existing in the mind and to remain happy. I am frequently asked how I manage to get up in the 3100 mile race, day after day, and perform a task I don’t necessarily want to do. If I were to wake and put on my running gear with the despondent thought, “Oh no, here I go again,” it meant I had already started the day on the wrong foot. I had to stay positive and focused and look forward to every day.

Extracted from Beyond the Marathon: Insights into the Longest Race in the World
Grahak Cunningham is an Australian Motivational Speaker and Ultra Runner and Four Times Finisher of the Worlds Longest Race