If you want to run the route we usually run:
Start at the 0 mile marker at the corner of Morehead Avenue and Blackwell Streets. Turn around .05 past the 1.5 mile marker on the trail (just before Otis Street).
(We usually have to start just beyond the 0 mile marker to make room for our start/finish line. You won't have to deal with that this year, so you'll turn around a bit ahead of where you usually do.)