Petrucelli 5K is at St Mary's City this coming Sat morning, and CBRC does finish line for it at least.
I understand that it follows the same course as Service Run/Invisible Children 5K last spring, which means it runs over the St Mary's Historic City trails, but you also get to run through (the path through) Key Swamp and up the hill out of it toward the rebuilt chapel, near the end.
(Yes, Petrucelli and Hughesville are both this coming Sat morn.)
http://www.smcm.edu/alum/petruccelli/
