ALEXANDRIA, Va. (WUSA9) -- The biggest race in the region, since the Boston Marathon bombing, took place in Alexandria Sunday morning.
Thousands ran the George Washington Parkway Classic 10-miler.
There was increased security and changes along the route nearly a week after the tragedy in Boston.
Runners were pumped up for the 29th annual George Washington Parkway Classic 10-miler and 5k run.
Runners wearing blue and yellow ribbon in honor of Boston, were under tight security.
"We were concerned a little about copycats but it's more important to be here," said Barbara Wright, a spectator.
Wright came to support her boyfriend Steve.
"I think there's a minor concern, but you can't let that stop you."
Organizers have worked with local and federal law enforcement to step up security after the Boston Marathon tragedy.