Richmond Marathon - Registration details, course map, contact information and lodging. - http://www.richmondmarathon.com/
Marine Corps Marathon - Located in Arlington with events listing, course description, photos, training and a message forum. - http://www.marinemarathon.com/
SunTrust Richmond Marathon - Also includes an 8km event with news items, rules, registration, pictures, past results, message board and travel information. - http://www.richmondmarathon.org/