And her name: Katie Holmes, wearing a dark FDNY baseball cap and purple tank top.
She got a quick, wet one from husband Tom Cruise as she entered the final stretch to the finish line in Central Park.
And Tom wasn't alone for the brief encounter with his running wife. In his arms was the couple's daughter, Suri.
Tom and Suri, as well as his mother and Holmes's parents, were all at the finish line to greet the runner, who seemed anything but exhausted, despite the strenuous day she had just endured.
Right after that first kiss, Holmes still had a way to go after Tom caught up to her at 1st Avenue and 96th Street, about 20 blocks from the Cruise's Upper East Side hotel. A path over to and down Manhattan's West Side was still before her.
She made it to the bitter end around 3:30 p.m., with a final time of 5:29:58.
Reunited with her daughter after the race, a smiling Holmes gave Cruise a big hug and kiss.
Suri's a Runner, TooBefore her arrival, inside the banquet tent set up in Central Park – and with his daughter at his side – Cruise told PEOPLE that he is "very" proud of Holmes, whom he finds "inspired. She trained for three months."
At that point, any other observations about his wife were interrupted by Suri, whom Cruise had to start chasing around the tent. Noted the famous father: "She's a runner!"
Holmes, Sweet HomeBack at her hotel, with Suri now in her arms, Holmes was asked by PEOPLE how she felt. "I'm good, but I'm feeling very tired," she admitted.
As for which leg of her long trek had been the toughest, she replied with a very tired smile, "They were all challenging."
By MELODY WELLS, KATE LINTHICUM, RENNIE DYBALL, STEPHEN M. SILVERMAN, MOLLY LOPEZ and LIZ MCNEIL