I recently ran a half marathon, which is 13.1 miles. This is the longest distance that I have ever run. I ran cross country and track all throughout high school, and workouts would foray into the ten mile range once in a while, but, as would soon be reinforced, that extra 3.1 is far from negligible. More to the point, the most I had run at once as a collegiate was only a tad over six, and this was nine days before the half marathon. What I am getting at is the following: this half marathon was a significant undertaking for which I was resoundingly underprepared.