Runners already face a daunting challenge when they line up at the start of a marathon, but increasingly they might find themselves with another obstacle to reckon with: global warming.

A producer counting down in Craig Melvin's ear during a return from a commercial break at NBC's Washington affiliate in 2008 was unwittingly counting the seconds until Craig met his future wife. The ...

Hellen Obiri of Kenya set a women’s course record to win the New York City Marathon on Sunday while compatriot Benson Kipruto won the men’s race by edging Alexander Mutiso in a photo finish. Obiri, ...