Team USA takes bronze in 4x100 universal relay

U.S women's 4x100m relay team sprints to championship record, Canada places seventh

Canadian men's 4x100m relay team advances to Olympic final

Scenes from the Indian Relay Races during the benefit for the Blackfeet Indian Reservation in Whitefish, Montana. Before Tyler Childers took the stage at the Big Mountain Ranch, an Indian bareback relay competition took place. In Indian relay races, the rider is like the baton, changing horses each round. Tyler Childers can be seen congratulations some of the winners in the 3rd clip. The final clip is of the winners. | Saving Country Music

Americans set world record in 4x400 mixed relay. It might only last a day