The event raises money for brain cancer research. It was founded by a group of then-South Lakes High School students in honor of their friend Amy Boyle, who lost her battle with brain cancer when she was 12.
In the first four years, the event raised $47,000 for the Children’s Brain Tumor Foundation, race organizers said.
The triathlon is one of two youth triathlons held in Reston each year. The other, the Reston Kids Triathlon, will be held Aug. 2 and benefits the YMCA and Reston Association youth programming.
Sunday’s triathlon begins at 8 a.m. at Ridge Heights Pool, 11400 Ridge Heights Road.
From there, participants will ride their bicycles on Ridge Heights to South Lakes Drive, to Soapstone, back to Ridge Heights and South Lakes Drive to Seahawk Drive at South Lakes High School.
The running course will be on the Reston Association trails and the track at South Lakes.
Roads will not be closed, but will be partially blocked, so plan accordingly and watch for young athletes.