More than 25,000 runners made their way through D.C. and Virginia as part of the Marine Corps Marathon.
Organizers increased security for this years event.
Guards were stationed at several of the mile marker stops along the marathon route. Organizers say they boosted security due to recent shootings at military related buildings such as the Marine Corps Museum.
The added protection put marathon participants like Karen Logsdon at ease.
"I think it was a little bit scary, but in the back of my mind, I know security is really tight here. It's such a well organized race that I'm really not that worried," Logsdon says.
Several law enforcement agencies, including D.C. Park Police, were on hand for the marathon.