Incredible stuff. Well done, Kaylyn and crew. This article originally appeared on For The Win: Kaylyn Brown and the USA mixed 4x400m relay team broke a world record...in an Olympic heat ...

Summer Olympics in Los Angeles will feature new mixed-gender team events in several marquee sports, including golf and ...

TOKYO - Poland scored an upset win in the inaugural Olympic 4x400 meters mixed relay on Saturday ... Notably absent from the U.S. relay roster was six-time Olympic gold medalist Allyson Felix, who was ...

Natalia Kaczmarek has been an integral part of Team Poland's success on the track in recent years, having helped the 4 x 400 ...