Once upon a time, she was the last one to be picked at school for team sports because of her ability.
Now, she's now a marathoner and a tri-athlete.
It's ironic talking to Sarah Reinertsen about running into obstacles. Afterall, her challenge would prevent most people from ever entering a race.
"I had to frame my life in a certain way, I had a choice," she said.
Because of a tissue disease, her leg was amputated when she was seven. Sarah learned to run at the age of 11. And by 21, the NY native who grew up watching the great race every November entered her first NYC Marathon.
"My first was New York and I chose it because I'm from New York. I didn't do it with a special leg" adds Sarah.
Special as in a $36,000 hi-tech running leg that's custom fit. It's made on Long Island close to where the Huntington native grew up.
"I'm still being raised in New York," she adds.
She also has legs for biking and high heels. A fitting combination for an Ironman finisher, yes, the 140-mile, swim bike run race.
"No woman on one leg had done it. That became my throw down. girl with one leg can do that too," adds Sarah.
It's true her can-do, always-tri, nothing is impossible attitude is how she began her first 26.2 mile race. But she says the lessons she gets from a life on the run are as precious as the race itself.
Not surprising she wants a personal best for this race. She's also running for the Challenged Athletes Foundation which funds athletes worldwide who need prosthetic limbs.