I completed my first 50 mile ultra marathon at the Madison, Northface Challenge a few weeks ago.  I ran the race with my brother who had completed one prior.  I asked him, so what is our strategy in completing one of these things and he said, easy….we will not be overly aggressive for the first 25 miles and we will just keep moving forward at all cost. 

Pace yourself. A startup is not a sprint. Take a step, then take another. When you hit the wall, push through it.