Mary Keitany

Defending champ Mary Keitany strong favorite in New York Sunday morning, while American women see race as a simulation of February's Marathon Trials—hills and tactics.

Tune in Sunday morning to watch returning champions and exciting newcomers battle through the streets of the five boroughs.

Keitany aims high, Masai intrigues, Sisson and Huddle are the wild cards in Sunday's showdown on the streets of London.

Sports Illustrated unveiled its list of fittest athletes in 2018 and eight pro runners made the cut. Here's a look at why they're worth mentioning.

With one of the deepest fields in history at this year's NYC Marathon, it's hard to deny any of the U.S. contenders a podium spot come November 4.

A bout with malaria behind her, Keitany ready to take on New York.

Laura Thweatt leads the American field.

London will reportedly be Radcliffe's final marathon of her career.

Here are photos of the elite races at the 2014 New York City Marathon.

It was a Kenyan sprint finish in Central Park. American Desiree Linden finishes fifth.

The Kenyan broke the world mark at the Berlin Marathon last year.

The Kenyan is now in first place for the 2012-2013 series.