By Al Novack

PHILADELPHIA (CBS) – The weather was perfect for the 18th annual Dash for Organ and Tissue Awareness held near the Philadelphia Museum of Art and along MK Drive in Fairmount Park Sunday.

This past weeks events in Boston were very much on the minds of the participants. Each event Sunday preceded with a moment of silence for people and the victims in Boston.

Volunteer, participant, and spokesman John Green reflected:

“What was amazing to me was that after the explosions, the number of people who instead of running away from the race, they ran towards the people who helped. I mean they are the everyday heroes we see among us.”

Event organizers say in light of what happened in Boston, security was tightened and organizers says they reviewed all plans with Philadelphia Police.

More than 6,500 people nationwide are in need of donor and tissue transplants and the Dash for Donor events are designed to raise money for education and awareness.

Top Content On CBSPhilly

Watch & Listen LIVE