Since there were a few questions about it, I ran today pain free. (Yeay!)
I spent about 15 minutes stretching before leaving home (about 2 hrs before race) and another 15 about a half hour before the starting gun. Also, took 4 ibuprofin before leaving.
I really believe that the three pronged approach of chiro, stretching and ibuprofin is making it all work.
Mileage plan is just 3/4/2 leading up to the big day. I can't remember the last time I ran just 2 miles (other than pain shortened.) Seems hardly worth putting on a clean set of workout clothes!