Allyson Felix, who's now the most decorated woman in American track and field history, is a vocal advocate for athletes who have children.

RIO DE JANEIRO -- Allyson Felix anchored the U.S. women to gold in the 4x400-meter relay final Saturday, giving the Americans the gold in the event for the sixth straight Olympic Games. The U.S. team ...

— -- RIO DE JANEIRO -- After a year full of injury and heartbreak, Allyson Felix ended her fourth Olympics like the most decorated woman in U.S. track and field history should: arms raised in ...

TOKYO – The U.S. men's 4x400 relay team qualified for Sunday night's final after winning a one-on-one showdown against Kenya to kick off the last day at world championships. The teams were given a ...