One runner compares turning 40 to hitting the proverbial wall in the 26.2-mile race.
She is a history-making runner, women's running advocate, commentator, and author.
Some scientists don't think so.
All her marathons have gotten progressively faster.
She ran unopposed the whole way.
It will be her second marathon run while pregnant.
Female participants and the Rock 'n' Roll Series lead the charge.
More women cross the finish line of an ultra marathon than men.