She'd never heard of the race and wasn't the sort of person to sign up for a road race.
"I'm not athletic at all," she said.
And yet it seemed like a natural for her to sign up for at least the 1-mile walk.
"I'm a NICU baby," she said.
Mandy was born at GBMC in Towson on July 21, 1989, at 24 weeks — three months before her due date of Nov. 4.
Mandy then spent 101 days in the NICU, or neonatal intensive care unit, and when she saw that the race benefits NICU, she decided to sign up. It'll be a first for both Mandy and her mother, Linda Standiford, who will join Mandy on the walk at the hospital's campus.
In fact, Mandy has recruited a whole team of her own. In addition to her mother, she's enlisted her father, Bob, sister, Kelly and a few friends, aunts and cousins.
"So we support you," Linda said to her daughter.
"I made them all sign up," Mandy said. "I'm the top fundraiser at the moment."
Mandy wasn't due to be born for three months when her mother realized she was having labor pains. She and her husband headed for GBMC.
"Thank God my doctor was here at GBMC," Linda said.
Mandy was coming so early and was expected to be so fragile, doctors asked the mother in labor whether she wanted life support for the baby or for them to just make her comfortable until she died, according to Linda. They were concerned the baby would be severely handicapped if she lived.
"They asked me repeatedly, 'What do you want to do?'" Linda recalled. "What I really wanted to do was go home and come back in October."
"You're going to do everything she can," she said she told the doctors.
"I just could not to wait to hold her," Linda said. But, in fact, it was four weeks before doctors let her cradle her new daughter.
At birth, Mandy was only 11 1/2 inches long. "She was as long as a Barbie doll," her mother said. She weighed 1 pound, 4 ounces and then lost weight, dropping below a pound.
Although the family lived in Finksburg, about 25 miles from GBMC, Mandy's parents made their way to the hospital every day — and sometimes more when they got a call to come quickly — to watch over their daughter.
"It was like being on a roller coaster ride. You just never knew when that next drop was coming," said Linda, who now lives in Hampstead.
"You were persistent, weren't you?" Linda said to Mandy as she recalled those difficult days.