Women's 4 x 400m Relay - 2007 World Championships
9:34
Men's 4 x 400m Relay - 2007 World Championships
32:21
All Allyson Felix 🇺🇸 Olympic Medal Races | Athlete Highlights
12:22
Women's 4x400m Relay Final | World Athletics Championships Beijing 2015
30:59
Women's 4x100m Relay Heats | World Athletics Relays Yokohama 2019
5:15
Allyson Felix wins women 400m Beijing 2015
12:41
USA win gold in the Women's 4x400m Relay
8:37
Women’s 4 x 400m Relay at Athletics World Cup 2018
38:37