In Boston Tuesday morning, bagpipers played "Amazing Grace" near the sites where two bombs exploded during the Boston Marathon a year ago.
The families of eight-year-old Martin Richard, Krystle Campbell, 29, and Chinese Boston University student Lingzi Lu, 23, stood in silence, as Cardinal Sean P. O'Malley prayed. The relatives of police officer Sean Collier, who was killed in the aftermath, were also there.
"We are asking that runners wear yellow, blue or white," Founder of the ING Miami marathon Frankie Ruiz posted on Facebook.
The Baptist Health South Florida Brickell Run Club is hosting Tuesday night's 3.5 kilometer run -- from Brickell to downtown Miami and back -- free of charge.
Miami's silent runners are set to meet at 7 p.m. at Fortune, 1300 Brickell Ave.
Hundreds are expected to participate in the act of resilience, as they run and walk northbound on Brickell Avenue, up Biscayne Boulevard and turn southbound at the AmericanAirlines Arena.
Last year, Fortune real estate broker Andres Asion posted a video on YouTube that showed a large crowd singing the national anthem.
Some in Miami knew someone killed or injured. Others who were visiting Boston experienced the police lock down that followed. Last year 87 runners from South Florida finished the Boston marathon, the Miami Herald reported.
Kenneth Bereski, a Boston College grad who lives in Miami Beach, finished 12th last year. He plans to participate in the road race tradition that began on 1897 again this year.
One Run club founder, Bereski, took to crowd funding to honor more than 260 injured in the bombings -- including 16 people whose limbs were amputated.
Bereski said he did not see the carnage that followed. Instead, what he witnessed inspired him.