It was an exciting day on the Olympic track, where Sha’Carri Richardson made her debut and the U.S. mixed 4×400 meter relay team set a world record in an event that is only five years old.
It was an exciting day on the Olympic track, where Sha’Carri Richardson made her debut and the U.S. mixed 4×400 meter relay team set a world record in an event that is only five years old.
