Hi Bex. Sorry, just picked up on this thread. A really good friend of mine is an ultra runner ( i supported him during the Anglesey Ring of Fire). I have sat and discussed his approach a few times with him. Firstly, he looks nothing like your average ulra runner (think chunky Eddie Izzard) and he loves his ale. He says it is 70% mental and preperation, 30% fitness. If he isn’t mentally prepared he has bad races.
So his advice is find your mental zone, this can only come with experience. 🙂