While there might be more competitive marathons in the world, there are few more popular than the New York City Marathon.
Runner's World named this event the favorite marathon of the United States and of the world.
The course goes through all five boroughs and gives runners and spectators a great scenic tour of one of the most beautiful cities on Earth.
Due to the race's worldwide popularity, many celebrities choose to compete to benefit various charities. These are the biggest names that will be running to make a difference on Sunday, November 4.
Charity: Every Mother Counts
For the second straight year, Christy Turlington Burns will run the 26.2-mile race in New York City.
The model worked for Calvin Klein for 20 years and is still in amazing shape.
She will be running for her own charity, Every Mother Counts, which helps educate new mothers about health issues.
Charity: Laureus Sport For Good Foundation
The Dutch goalkeeper is known for his great play in 130 appearances for the Netherlands national team.
He also spent six years with Manchester United from 2005-2011 after stints with Fulham and Juventus.
Although he did not need to run much during the matches, an athlete like van der Sar should be able to finish this marathon without many issues.
Charity: Every Mother Counts
Although she has been in other roles, Jennifer Carpenter is best known as Debra Morgan on the hit show Dexter.
You can guarantee there will be a number of runners attempting to stay close to the actress to get a good view throughout the race.
Nick Kypreos played in the NHL for nine years for the Washington Capitals, Hartford Whalers, New York Rangers and Toronto Maple Leafs.
He has popularity in the city as a member of the 1994 Rangers, which won the organization's first Stanley Cup in over 50 years.
Kypreos now works as an analyst for Sportsnet in Canada.
Charity: Juvenile Diabetes Research Foundation
Paul Sparks is best known for playing Mickey Doyle in the HBO series Boardwalk Empire.
While every character in the show does their best to earn their own money, the actor is spending his weekend running the grueling race for charity.
Hopefully, he will wear something more comfortable than a three-piece suit during the race.
Charity: Folds of Honor
An anchor for Fox in Charlotte, NC since 2008, Anna Kooiman will hold the honor of being one of the more attractive runners in a race of almost 50,000 people.
Kooiman also has a series of workout videos. This means she will have to put her money where her mouth is during this long race.
Charity: New York Road Runners Youth Programs
J.R. Martinez is a veteran of the United States Army. Since serving, he has become a popular motivational speaker and the winner of Season 13 of Dancing with the Stars.
Although he sustained a damaging burn to his face during the war, he has not let that stop him from becoming a national sensation.
His story is one that should encourage everyone around the world to accomplish their dreams.
Charity: Michael J. Fox Foundation
Patrick Wilson has been in a number of movies, television shows and Broadway shows during his career. His more famous works include Insidious, Hard Candy and Watchmen.
He was also nominated for a Golden Globe for Best Actor after his role in Angels in America.
Despite all of this, finishing the marathon would be among his best achievements of his career.
Charity: Challenged Athletes Foundation
Sarah Reinertsen has accomplished more with one leg than most will in their entire lives with two.
She became the first female leg amputee to finish the Ironman Triathlon World Championships in Kona, Hawaii. This event combines a 2.4-mile swim, a 112-mile bike ride and a 26.2-mile run.
After that, the NYC marathon should be a walk in the park.